IT Outsourcing Cost: Smart, Proven UK Buyer's Guide

IT outsourcing cost in the UK is quoted per user per month, and the published range runs from £40 to £150 for something every supplier describes in almost identical words. That is a 3.75x spread on the same category of service. Meanwhile the alternative — employing the people yourself — is quoted in salaries, and the two numbers are almost never put on the same page in a form that lets you compare them honestly.

This guide does exactly that. Every figure below is read off a source published and checked on 21 August 2026: four UK suppliers’ own rate cards on the government Digital Marketplace, the ITJobsWatch salary and contract indices for the six months to that date, HMRC’s employer thresholds for the 2026 to 2027 tax year, Microsoft’s UK price list in pounds, Acas guidance on TUPE, and the published per-user bands of UK providers who list their prices at all.

Where a number had to be modelled rather than read off a page, it is labelled modelled and the working is shown, so you can drop in your own salaries and headcount and watch every downstream figure move.

What follows prices the IT outsourcing cost of one realistic 50-user business three ways — fully in-house, fully outsourced to a managed service provider, and co-managed between the two — then finds the headcount at which each model wins. If you want the service-design view rather than the invoice, the full detail of what we deliver sits on our IT outsourcing service page, and our companion guide to managed IT support cost in the UK covers the contract mechanics in more depth.

Table of contents

What IT Outsourcing Cost Actually Covers
The Three Models Behind Every IT Outsourcing Cost Question
What UK Providers Publish for IT Outsourcing Cost
The In-House Baseline Behind Any IT Outsourcing Cost Comparison
The IT Outsourcing Cost of a Fully Managed Contract
Co-Managed IT: Splitting the IT Outsourcing Cost
One 50-User Business, Three IT Outsourcing Cost Models
The IT Outsourcing Cost Curve by Headcount
The Crossover Points That Decide Your IT Outsourcing Cost
The 24/7 Arithmetic That Breaks the In-House IT Outsourcing Cost Case
The Single-Person Risk Missing From Every IT Outsourcing Cost Case
Hidden Charges That Move the IT Outsourcing Cost After Signature
The Tooling Gap That Raises In-House IT Outsourcing Cost
Project Work: The IT Outsourcing Cost of One Consultant Day
TUPE: The IT Outsourcing Cost Nobody Reads Until Week Six
Security, Cyber Essentials and the IT Outsourcing Cost of Assurance
Three-Year IT Outsourcing Cost: The Table That Should Decide It
How to Cut Your IT Outsourcing Cost Without Cutting Cover
Contract Clauses That Protect the IT Outsourcing Cost You Agreed
A Decision Framework for Your IT Outsourcing Cost
Frequently Asked Questions About IT Outsourcing Cost
References and Further Reading

What IT Outsourcing Cost Actually Covers

Most IT outsourcing quotes describe inclusions — helpdesk, monitoring, patching, backup, antivirus. Those are activities, not the thing you are buying. There are four separate purchases hiding inside a single per-user line, and firms that confuse them end up paying twice for one of them.

The four things inside one IT outsourcing cost line

The first purchase is capacity: somebody answering when a laptop dies at 08:10 on a Monday. The second is coverage: the hours during which that somebody exists at all. The third is capability: whether the person answering can fix a broken conditional access policy or only reset a password. The fourth is continuity: what happens when your one technical person resigns, goes on holiday or gets ill.

An in-house team is strong on capability and weak on coverage and continuity. A managed service provider is strong on coverage and continuity and variable on capability. That asymmetry, not the headline rate, is what the IT outsourcing cost comparison is really about.

Why per user per month is a misleading IT outsourcing cost unit

Per user per month is a convenient unit and a poor one. It scales with headcount, but almost none of the underlying work does. Patching a server farm costs the same whether 30 or 60 people use it, and a single ransomware incident consumes the same weeks either way. Two businesses with identical headcounts and different estates will consume wildly different amounts of the same contract at an identical IT outsourcing cost.

The honest framing for IT outsourcing cost

There is no generic UK IT outsourcing cost. There is only the price of a defined scope, at a defined coverage window, bought through a defined commercial model. Change any one of those three and every number in this guide moves. What transfers between businesses is not the total — it is the arithmetic that tells you when a quote is fair and when it is merely large.

The Three Models Behind Every IT Outsourcing Cost Question

Almost every UK business lands on one of three shapes. Understanding which one your IT outsourcing cost quote describes matters more than negotiating the rate, because the three are not substitutes for each other.

Fully in-house

You employ the people, so your IT outsourcing cost is a payroll line. You buy the tooling, carry the recruitment risk, own the knowledge, and set the priorities without asking anyone. You also carry every gap: holidays, sickness, resignations, the 128 hours a week nobody is at a desk, and the specialisms one or two generalists cannot cover.

Fully outsourced to a managed service provider

A provider supplies the people, the tooling and the process for a per-user fee, and that fee is your whole IT outsourcing cost. Coverage is somebody else’s staffing problem. In exchange you accept a service catalogue, a ticket queue you share with other clients, and a commercial relationship in which every request outside the contract carries a price.

Co-managed IT

You keep one or two internal people who know the business, and buy the layers that are uneconomic to staff — out-of-hours cover, monitoring tooling, second and third line escalation, project capacity. Our overview of co-managed IT and how it supports internal teams covers the operating model; this guide prices the IT outsourcing cost of it.

Dimension	Fully in-house	Managed service provider	Co-managed
Who employs the people	You	The provider	Both
Cost shape	Step (per hire)	Linear (per user)	Step plus linear
Coverage outside 09:00–17:00	Goodwill or overtime	Contracted	Contracted
Holiday and sickness cover	Your problem	Their problem	Their problem
Business knowledge	Highest	Lowest	High
Tooling licences	You buy at list	Bundled	Bundled
Specialist skills	Bought ad hoc	In the pool	In the pool
Best fit by size	250+ users	Under 150 users	150+ users

The final row is the IT outsourcing cost conclusion of this guide, not an assumption behind it. The arithmetic that produces those thresholds is set out below, and you can move them by changing three inputs.

What UK Providers Publish for IT Outsourcing Cost

The UK managed services market is unusually shy about price. A minority of providers publish anything at all, and none of them let you buy online. The IT outsourcing cost bands that are published, however, are remarkably consistent, and they give us a defensible starting point.

The three published IT outsourcing cost tiers

Guidance published on 21 August 2026 by Connection Technologies, a UK provider that does list prices, sets out three tiers: £40 to £55 per user per month for basic helpdesk-led cover, £55 to £85 for a standard proactive package, and £85 to £150 for security-led support with round-the-clock monitoring. The same source names £55 to £85 as the market average and flags anything quoted at £25 to £30 as a package that has had something important removed.

Tier	Per user / month	Typically included	50 users / year
Basic	£40–£55	Business-hours helpdesk, remote monitoring, patching, basic antivirus, cloud backup	£24,000–£33,000
Standard	£55–£85	Adds endpoint detection and response, email security, MFA administration, server monitoring, quarterly reviews	£33,000–£51,000
Premium	£85–£150	Adds 24/7 support, security operations centre monitoring, compliance support, account manager, roadmap	£51,000–£90,000

What the bands do not include

Three things sit outside almost every per-user IT outsourcing cost, and all three are large. Microsoft licences are billed separately — Business Premium lists at £16.90 per user per month on annual commitment on Microsoft’s UK site. Project work is billed at day rates. And hardware is yours to buy. A quote that appears to include all three is either bundling licences at a markup or has not been read carefully.

Why the published range is so wide

The £40 tier and the £150 tier are not the same product sold at different margins. The cheap end is a shared helpdesk with monitoring software pointed at your estate. The expensive end includes people watching alerts at 03:00. The difference in the underlying IT outsourcing cost structure is coverage hours, and coverage hours are the single most expensive thing in this market.

The In-House Baseline Behind Any IT Outsourcing Cost Comparison

You cannot judge any IT outsourcing cost without a defensible in-house number to hold it against, and salary is not that number. An employer pays employer’s National Insurance, pension contributions, tooling, training and recruitment on top, and gets fewer than 227 working days a year in return.

The loaded-cost method behind every IT outsourcing cost comparison

For the 2026 to 2027 tax year, employer’s Class 1 National Insurance is 15% on earnings above a £5,000 secondary threshold. Auto-enrolment requires a minimum 3% employer contribution on qualifying earnings, the band between £6,240 and £50,270. The Employment Allowance is £10,500, but for a business of this size it is normally consumed by the wider payroll long before the IT team, so it is not netted off below.

A working year is 261 weekdays, less 8 bank holidays and 26 days of annual leave, leaving 227 working days — 1,702.5 hours at a 7.5-hour day.

Role (ITJobsWatch median)	Salary	Employer NI	Pension	Loaded cost	Per working day
Service desk analyst	£30,000	£3,750.00	£712.80	£34,462.80	£151.82
IT support	£32,000	£4,050.00	£772.80	£36,822.80	£162.21
IT manager	£55,000	£7,500.00	£1,320.90	£63,820.90	£281.15
Infrastructure engineer	£55,000	£7,500.00	£1,320.90	£63,820.90	£281.15
Network engineer	£60,000	£8,250.00	£1,320.90	£69,570.90	£306.48

The salary market those figures come from

ITJobsWatch for the six months to 21 August 2026 puts the IT support median at £32,000 across 2,453 quoted salaries, up 3.23% year on year, and £31,000 outside London. Service desk analyst sits at £30,000 on 237 salaries, flat year on year. IT manager is £55,000 on 1,732 salaries, down 3.17%. Infrastructure engineer is £55,000 on 1,292 salaries, down 4.35%. Network engineer is £60,000 on 873 salaries, up 14.29%.

The two most striking numbers there are the network engineer’s 14.29% rise and the IT manager’s 3.17% fall. Generalist management is getting cheaper to hire; specialist skills are getting dearer. That is precisely the trade a co-managed arrangement is designed to exploit, and it moves the IT outsourcing cost arithmetic every year.

Loading is a 14.9% to 16.0% uplift

Across those five roles the loading adds between 14.88% and 16.04% to salary. Rounding it to “about 15% on top” is close enough for a first pass, and materially wrong if you then forget tooling, training and recruitment — which together add another £2,845 per head per year in the model below.

What the same people cost as contractors

Contract rates give you the third reference point. ITJobsWatch puts IT support contract work at a £200 median day rate across 370 quoted rates, flat year on year and £200 outside London too, and IT manager contract work at £525 across 329 rates, up 2.94%, falling to £500 outside London.

Set those against the loaded daily figures. An employed IT support person costs £162.21 a day of the 227 they are contracted for; the contract market charges £200, a 1.2329x premium. An employed IT manager costs £281.15 a day against £525 on contract — a 1.8673x premium. Renting seniority is expensive; renting hands is not.

The IT Outsourcing Cost of a Fully Managed Contract

A fully managed contract replaces the whole function and turns your IT outsourcing cost into a single line. The provider supplies first, second and third line, the monitoring stack, patching, backup, security tooling and a named account contact, and bills a single per-user figure every month.

What the IT outsourcing cost model assumes

The worked example throughout this guide is a 50-user UK business on three sites, with two servers, cloud email, a line-of-business application and no in-house technical staff at the start. It buys the standard tier at £70 per user per month, the midpoint of the published £55 to £85 band. That is £42,000 a year of IT outsourcing cost in fee alone.

Onboarding is a one-off £3,000, inside the published £1,000 to £5,000 range. New-starter setup at £100 a head, on 12 joiners and leavers a year, adds £1,200. Year one is therefore £46,200 and steady state £43,200 — an all-in £72.00 per user per month.

Where the provider’s margin actually sits

Nothing about that IT outsourcing cost is mysterious. A provider carrying an IT support person at £36,822.80 loaded needs roughly one such person per 60 to 100 users across a client base, buys tooling at wholesale, and earns its margin on the difference between shared capacity and dedicated capacity. Good managed IT services businesses are utilisation businesses, exactly like consultancies.

What good looks like in the contract

Response and resolution targets should be separate numbers, tickets should be defined, and the phrase “unlimited support” should be read alongside its fair-use clause. Our guide to comparing managed service providers with 25 risk questions is the checklist to run before signature; most outsourcing strategies fail on scope definition rather than on rate.

Co-Managed IT: Splitting the IT Outsourcing Cost

Co-managed sits between the two and is the least understood IT outsourcing cost model of the three. You keep the person who knows why the finance system does that thing every March, and you rent everything that is uneconomic to staff for one business.

What each side typically owns

Function	Internal	Provider	Why it splits that way
First-line, business hours	Owns	Overflow	Local knowledge is worth most on routine tickets
Out-of-hours and weekends	—	Owns	One business cannot staff a rota economically
Monitoring and alerting tooling	—	Owns	Licence economics favour the pooled buyer
Patching and endpoint hygiene	Approves	Executes	Repeatable work, low judgement, high volume
Third-line and specialisms	—	Owns	Needed rarely, expensive to employ
Vendor and supplier management	Owns	Advises	Commercial relationships stay with the business
Roadmap and budget	Owns	Inputs	Priorities belong to whoever carries the P&L
Project delivery	Sponsors	Delivers	Peaks need capacity you cannot keep on the payroll

How the co-managed layer is priced here

There is no published UK rate card for a co-managed layer, so this figure is modelled: £35 per user per month, roughly the tooling-and-escalation half of the published basic tier. Paired with one internal IT manager at £63,820.90 loaded and a £1,500 training budget, the 50-user annual figure is £86,320.90, or £143.87 per user per month.

At 50 users that IT outsourcing cost is worse than a full outsource and better than a two-person in-house team. It only starts winning at scale, and the crossover is calculated below.

Where co-managed genuinely beats both

Co-managed wins when the internal head is already justified for reasons other than tickets — a regulated environment, a bespoke application, a site that cannot be supported remotely — and everything around that person is bought rather than built. It is also the model that survives a resignation, because the tooling, the documentation and the escalation path do not walk out of the door.

One 50-User Business, Three IT Outsourcing Cost Models

Here is the whole IT outsourcing cost comparison on one scope. Microsoft licences are excluded because they are identical in all three cases; hardware is excluded for the same reason.

Line	In-house (2 FTE)	Managed provider	Co-managed
People (loaded)	£100,643.70	—	£63,820.90
Provider fee	—	£42,000.00	£21,000.00
Management and ticketing tooling	£2,690.05	bundled	bundled
Endpoint security add-on	£564.19	bundled	bundled
Training and certification	£3,000.00	—	£1,500.00
Annual run cost	£106,897.94	£42,000.00	£86,320.90
Per user per month	£178.16	£70.00	£143.87
Coverage window	37.5 hrs/week	Contracted	Contracted

Annual run cost for the same 50-user scope, three ways

In-house, two employed staff — £106,897.94

Co-managed, one internal plus provider layer — £86,320.90

Fully outsourced, standard tier — £42,000.00

Reading the gap honestly

The spread is £64,897.94, or 2.5452x, and the cheapest option also buys more hours of the week than the dearest. That looks like an open-and-shut case, and at 50 users it very nearly is. What the in-house column buys that the others do not is undivided attention and institutional memory, and there is no honest way to put a price on either.

The one number that flips it

If the estate is complex enough that the provider’s contract excludes half of it, the fee stops being £42,000 and starts being £42,000 plus day rates. Two significant projects a year at ten days each, at a mid-market £700 a day, add £14,000 and take the outsourced figure to £56,000. Your IT outsourcing cost comparison is only as good as the scope you wrote.

The IT Outsourcing Cost Curve by Headcount

Per-user pricing makes IT outsourcing cost a straight line. In-house cost is a staircase, because people arrive one at a time. That single structural difference explains most of what happens when businesses grow.

The staffing ladder behind the IT outsourcing cost curve

The model adds heads at 1 user (IT support), 35 users (IT manager), 75 (second IT support), 125 (infrastructure engineer), 175 (third IT support) and 225 (network engineer). It is deliberately lean — roughly one technical head per 50 to 60 users — and it is the ladder most UK SMEs actually follow.

Users	In-house FTE	In-house / user / mo	Provider / user / mo	Co-managed / user / mo
25	1	£133.17	£70.00	£252.74
50	2	£178.16	£70.00	£143.87
100	3	£122.61	£70.00	£89.43
150	4	£119.09	£70.00	£71.29
250	6	£109.19	£70.00	£69.55

In-house cost per user per month is a sawtooth, not a slope

25 users, 1 employed head — £133.17

50 users, 2 employed heads — £178.16

100 users, 3 employed heads — £122.61

150 users, 4 employed heads — £119.09

250 users, 6 employed heads — £109.19

The 50-user IT outsourcing cost cliff

Look at the jump from 25 users to 50. Adding the second head raises the in-house rate from £133.17 to £178.16 — a 33.78% rise in unit cost for a business that has doubled in size. Every step on the ladder does this to in-house IT outsourcing cost. The pain is worst at the moment you hire, and it decays until the next hire arrives.

The floor nobody reaches

The in-house line falls all the way to £109.19 per user per month at 250 users, and it never enters the published standard band of £55 to £85. On these inputs, a lean in-house team is more expensive per user than the market rate at every size tested, and the gap at the bottom of the range is still £24.19 per user per month above the top of the standard tier.

The Crossover Points That Decide Your IT Outsourcing Cost

Three IT outsourcing cost crossovers matter. Each is a division, and each can be recalculated with your own numbers in under a minute.

Crossover one: co-managed versus fully outsourced

The co-managed model carries a fixed £63,820.90 of internal salary plus £1,500 of training, then £420 per user per year of provider fee. The full outsource carries £840 per user per year and no fixed cost. Setting them equal: £65,320.90 ÷ (£840 − £420) = 155.53 users.

Below that headcount the full outsource is cheaper. Above it, the internal head is amortised over enough users to pay for itself. That single number is the most useful IT outsourcing cost output in this guide.

Crossover two: in-house versus fully outsourced

The three-FTE in-house configuration carries £146,001.58 of fixed cost. Divided by the net provider fee of £828.72 per user per year, it breaks even at 176.18 users. But the ladder adds a fourth head at 125 users, so by the time you reach 176 you are already carrying four.

Run the same sum at four heads and the break-even is 256.62 users; at six heads it is 391.87. In every case the next hire lands before the crossover does. On a lean ladder and a £70 market rate, an in-house team never catches a fully outsourced arrangement on cost — which is the clearest argument in this guide for buying in-house capability for reasons other than price.

Crossover three: hire versus contract

An employed IT support person costs £36,822.80 a year. At the £200 contract median that is 184.11 days of contractor time. One employee, allowing for the ONS average of 4.4 sickness days a year, supplies about 222.6 — so hiring wins by a window of just 38.49 days. For an IT manager the numbers are £63,820.90 against £525 a day, break-even at 121.56 days and a much healthier window of 101.04 days.

Crossover	Formula	Result
Co-managed beats full outsource	£65,320.90 ÷ £420	155.53 users
In-house (3 FTE) beats full outsource	£146,001.58 ÷ £828.72	176.18 users
In-house (4 FTE) beats full outsource	£212,667.51 ÷ £828.72	256.62 users
In-house (6 FTE) beats full outsource	£324,751.26 ÷ £828.72	391.87 users
Hiring beats contracting (support)	£36,822.80 ÷ £200	184.11 days
Hiring beats contracting (manager)	£63,820.90 ÷ £525	121.56 days

The 24/7 Arithmetic That Breaks the In-House IT Outsourcing Cost Case

The coverage sum is the IT outsourcing cost line most in-house business cases skip, and it is not close.

Why one 24/7 seat carries the IT outsourcing cost of five people

A week contains 168 hours. A standard working week is 37.5, which is 22.32% of the week. To keep one seat occupied around the clock you need 8,760 hours of cover a year. One full-time employee delivers 227 days × 7.5 hours = 1,702.5 hours. That is 5.1454 full-time employees per continuously staffed seat, before anyone takes an unplanned day off.

At the IT support loaded cost of £36,822.80, one round-the-clock first-line seat therefore costs £189,467.09 a year. The premium managed tier for the same 50-user business, which includes 24/7 cover and a security operations centre, tops out at £90,000.

Annual cost of round-the-clock first-line cover, 50-user business

In-house, 5.1454 FTE for one 24/7 seat — £189,467.09

Premium managed tier at £150 per user — £90,000.00

Premium managed tier at £85 per user — £51,000.00

Standard managed tier at £70 per user — £42,000.00

The part-way options are worse than they look

Most businesses split the difference with an on-call rota and overtime. Out-of-hours support outside a contract is published at £100 to £200 an hour; a modest 100 hours a year at £150 is £15,000, on top of salaries, for cover that depends on one person’s phone being charged. Rota allowances, time off in lieu and burnout are all real costs that never appear in the business case.

What the coverage argument does not settle

None of this settles your IT outsourcing cost decision on its own. It says that if your operating hours genuinely extend past 17:00, the cheapest honest way to buy those hours is from an organisation that already runs a rota. Whether the rest of the function goes with them is a separate decision, and co-managed exists precisely to keep it separate.

The Single-Person Risk Missing From Every IT Outsourcing Cost Case

A one-person IT function is the most common arrangement in UK businesses between 20 and 60 users, and it is the one whose true IT outsourcing cost comparison is most often mis-stated.

The availability arithmetic behind in-house IT outsourcing cost

Of 261 weekdays, your one person is contracted for 227 after bank holidays and annual leave. The ONS puts average sickness absence at 4.4 days per worker in 2025, unchanged on 2024, against an overall absence rate of 2.0%. That leaves 222.6 days of actual availability — meaning 38.4 weekdays a year, 14.71% of the working year, in which there is nobody.

What a resignation costs

Tech recruitment agencies charge 18% to 22% of first-year salary for permanent placements, with niche specialisms above that. On the £32,000 IT support median that is £5,760 to £7,040; on the £55,000 IT manager median, £9,900 to £12,100. Add a notice period during which output falls, a vacancy gap, and three months of a new starter learning where everything is.

The knowledge that leaves with them

The undocumented parts of an estate are the expensive parts. Where the firewall rules came from, why that scheduled task exists, which supplier holds the domain — an incoming person rediscovers all of it at your expense. Disciplined IT asset management and written runbooks are the cheapest insurance available, and they are exactly what gets deferred when one person is running flat out.

Continuity event	One-person in-house	Managed provider	Co-managed
Two weeks’ annual leave	No cover	No impact	No impact
4.4 days’ sickness	No cover	No impact	No impact
Resignation	£5,760–£12,100 to replace, plus a gap	Provider’s problem	Provider covers the gap
Major incident at 02:00	Goodwill	Contracted rota	Contracted rota
Two incidents at once	One waits	Parallel handling	Parallel handling
Skill the person lacks	Buy in at day rates	Escalate in-pool	Escalate in-pool

Pricing the risk instead of ignoring it

You do not have to guess at the IT outsourcing cost of that risk. Take the £5,760 to £12,100 replacement cost, add the 38.4 uncovered days valued at whatever a day of downtime costs your business, and put the total in the in-house column. It rarely closes the £64,897.94 gap at 50 users on its own — but at 150 users, where the models are within a few pounds of each other, it decides the answer.

Hidden Charges That Move the IT Outsourcing Cost After Signature

The published per-user rate is the smallest part of the IT outsourcing cost negotiation. These are the lines that move a contract by five figures over three years.

The IT outsourcing cost lines providers publish

Onboarding is £1,000 to £5,000. New-user setup is £50 to £150 per starter. Out-of-hours work outside contract is £100 to £200 an hour. None of these is unreasonable; all of them are avoidable surprises.

The charges that hide in definitions

Clause	What it usually means	Ask this instead
“Unlimited support”	Unlimited tickets, subject to fair use	What is the fair-use threshold, in tickets per user per month?
“Per user”	One device per person	What does a second device, a phone or a shared PC cost?
“Servers included”	Monitoring included, remediation billed	Which server tasks are in the fee and which are projects?
“Business hours”	08:00 or 09:00 to 17:00 or 18:00	What are the exact hours, and what is the out-of-hours rate?
“Annual uplift”	CPI, or a fixed 3% to 5%	Is it capped, and against which published index?
“Response time”	Time to acknowledge, not to fix	What is the separate resolution target by priority?
“On-site visits”	A fixed number per quarter	How many, and what is the rate beyond them?
“Exit assistance”	Chargeable at day rates	What is handed over, in what format, at what price?

The uplift clause is worth more than the discount

A 4% annual uplift on a £42,000 fee costs £5,107.20 over three years against a flat contract — £131,107.20 rather than £126,000. That is larger than most first-year discounts a provider will offer, and it compounds for as long as you stay. Negotiate the escalator before the headline.

The exit clause carries more IT outsourcing cost than the uplift

Ask what happens on the last day. Who holds the domain registrar login, the tenant global administrator account, the firewall configuration, the documentation? A provider who cannot answer that in writing has priced a switching cost into your future without telling you.

The Tooling Gap That Raises In-House IT Outsourcing Cost

Providers do not carry a lower IT outsourcing cost simply because they pay less. They are cheaper because they buy the same software on better terms — and in at least one case, the vendor prices in-house buyers higher on purpose.

One platform, two price lists, two IT outsourcing cost bases

Atera, a widely used remote monitoring and ticketing platform, publishes two rate cards for the identical product. The MSP entry plan is $129 per technician per month on annual billing; the equivalent IT-department plan is $149. That is $20 more per technician per month, a 15.50% premium, charged to the buyer who is not a service provider.

Converted at the sterling rate implied by Microsoft’s own Azure UK South list price for a D2s v5 instance — £0.0835 against $0.111, or £0.752252 per US dollar — that gap is £180.54 per technician per year. Small in isolation, and a reliable signal of how the whole tooling market is structured.

Atera plan (annual billing)	Service provider card	IT department card	Premium
Entry tier	$129	$149	+15.50%
Middle tier	$159	$189	+18.87%
Upper tier	$209	$219	+4.78%
Endpoint protection add-on	$1.25 / device / mo	$1.25 / device / mo	—
Network discovery add-on	$29 / tech / mo	$29 / tech / mo	—

What the in-house stack has to include

Monitoring and ticketing is one line of several. A serious in-house function also needs documentation, backup with off-site copies, endpoint detection and response, patch orchestration, privileged access control, and somewhere to keep the passwords. A provider amortises every one of those across its whole client base; you amortise them across yourself.

The licence line that is identical either way

Microsoft licensing is the exception, and it is worth saying clearly because it is often used to make an outsourced quote look inflated. Business Premium is £16.90 per user per month on annual commitment and £20.28 monthly — a 20.00% premium, £40.56 per user per year, for the right to leave. That price is the same whoever administers the tenant.

Project Work: The IT Outsourcing Cost of One Consultant Day

Support contracts cover the steady-state IT outsourcing cost. Everything that changes the estate — a migration, a new site, a security remediation programme — is priced by the day, and the UK has an unusually transparent source for those rates.

Four published UK IT outsourcing cost rate cards, side by side

Every supplier on the government’s G-Cloud framework must lodge a rate card against the seven SFIA skill levels, and those PDFs sit on the Digital Marketplace as public documents. The table below takes the service management column — the one under which support, operations and IT service management work is sold — from four suppliers of very different size, all rates per consultant day, exclusive of VAT.

SFIA level	Exponential-e	Sarax	Deloitte LLP	BDQ
1. Follow	£488	£336	£450	£800
2. Assist	£584	£628	£850	£950
3. Apply	£646	£684	£1,090	£1,100
4. Enable	£753	£784	£1,290	£1,200
5. Ensure or advise	£977	£911	£1,650	£1,400
6. Initiate or influence	£1,143	£1,630	£1,925	£1,550
7. Set strategy or inspire	£1,341	£2,380	£2,050	£1,700

Read the “Apply” row first

Level 3 is where hands-on delivery actually happens, and the published spread there is £646 to £1,100 — a 1.70x difference for the same SFIA definition of the same job. Note also that the working day is not standardised: Sarax defines it as 7.5 hours, Deloitte and BDQ as 8. Two rate cards with the same headline are not the same purchase.

What your annual fee buys in consultant days

This is the most clarifying comparison in the guide. The 50-user standard contract at £42,000 a year is equivalent to 65.02 days at Exponential-e’s level 3 rate, 61.40 at Sarax’s, 38.53 at Deloitte’s and 38.18 at BDQ’s. Put another way, a year of managed support costs about the same as eight to thirteen weeks of a single named consultant.

Published SFIA level 3 service management day rates, four UK suppliers

Exponential-e — £646

Sarax — £684

Deloitte LLP — £1,090

BDQ — £1,100

Why the day rate is the wrong headline

A day rate prices one person’s attention. It says nothing about how many days the work needs. A £1,100 engineer who lands a clean migration in four days is cheaper than a £646 engineer who takes eight, and the reverse happens just as often. The only genuinely comparable figure is cost per completed outcome, and almost nobody publishes it.

TUPE: The IT Outsourcing Cost Nobody Reads Until Week Six

If you already employ IT staff and you outsource the work they do, employment law is not optional background, and it belongs inside the IT outsourcing cost. TUPE applies to service provision changes, and that is exactly what an outsourcing decision is.

When TUPE bites, and what it adds to IT outsourcing cost

Under the 2006 regulations, TUPE applies when in-house work moves to a contractor, when a contract moves between contractors, and when work comes back in-house. All three directions are covered. It does not apply to a pure supply of goods, or to a one-off short-term event.

The obligations with dates attached

The outgoing employer must give the incoming employer employee liability information at least 28 days before the transfer date: names, ages, written statements of employment particulars, disciplinary and grievance records from the last two years, relevant collective agreements, and any claims made or anticipated in the last two years.

Both employers must inform and consult affected employees and their representatives before the transfer. There is no fixed statutory period, but there must be enough time to consult properly.

What it costs to get wrong

Failure	Who claims	Exposure
Late, missing or wrong employee liability information	The incoming employer	At least £500 per employee
Failure to inform and consult	Affected employees	Up to 13 weeks’ uncapped gross pay each
Dismissal because of the transfer	The employee	Automatically unfair, subject to ETO defence
Changing terms because of the transfer	The employee	Change is generally void

Run the arithmetic on a two-person IT team. Thirteen weeks of a £55,000 salary is £13,750, and of a £32,000 salary £8,000 — £21,750 of exposure from one skipped consultation, roughly half the annual saving the outsourcing decision was supposed to deliver.

The clause to insert now

If TUPE is in play, agree in the contract who bears the employment liabilities and how they are indemnified, and get the 28-day clock into the project plan on day one. It is also the reason the co-managed model is often the politically simpler path: nobody transfers.

Security, Cyber Essentials and the IT Outsourcing Cost of Assurance

Security responsibility is where an IT outsourcing cost most often turns out to be thinner than the buyer assumed.

Certification is cheap; the IT outsourcing cost of evidence is not

Cyber Essentials starts at £320 plus VAT according to the NCSC, priced by organisation size, with Cyber Essentials Plus priced by the size and complexity of the network. Both certificates last twelve months. The certificate is not the expensive part — producing twelve months of patch evidence, device inventory and account hygiene is, and that work sits squarely in whichever column of this comparison you chose.

Ask who holds the administrative accounts

In a fully outsourced arrangement the provider usually holds global administrator rights in your tenant. That is workable and normal; it is not workable if nobody at your organisation also holds a break-glass account. Every serious cybersecurity review starts by asking who can lock everyone else out.

The security items to name explicitly

Item	Frequently assumed	Frequently true
Backup testing	Restores are tested regularly	Backups are monitored; restores are tested on request
Alert response at night	Somebody acts	Somebody acts if the tier includes it
Incident response	Included	Triage included, remediation billed
Certification evidence	Provider produces it	Provider supplies data; you assemble the submission
Security testing	Part of the fee	A separate engagement at day rates
Cyber insurance conditions	Provider warrants them	You warrant them to the insurer

Where to put the boundary

Our guides to cyber security audit cost in the UK and penetration test pricing for 2026 price the assurance layer separately, which is the right way to think about it. Assurance should never be bought from the same budget line as the operations it assures.

Three-Year IT Outsourcing Cost: The Table That Should Decide It

One year flatters the in-house IT outsourcing cost case, because recruitment is a sunk cost and nothing has broken yet. Three years is the honest horizon, and it is also the length of most contracts.

What the three-year IT outsourcing cost model adds

The in-house column adds recruitment at 20% of first-year salary for both hires (£17,400) and one replacement hire over the three years (£6,400). The outsourced column adds the £3,000 onboarding and £1,200 a year of new-starter setup. The co-managed column adds £2,000 onboarding, £11,000 of recruitment for the internal manager and £600 a year of starter setup. All figures are in flat cash terms with no uplift.

Three years, 50 users	In-house	Managed provider	Co-managed
Run cost × 3	£320,693.82	£126,000.00	£258,962.70
Onboarding / setup	—	£6,600.00	£3,800.00
Recruitment and replacement	£23,800.00	—	£11,000.00
Three-year total	£344,493.82	£132,600.00	£273,762.70
Effective per user per month	£191.39	£73.67	£152.09
Premium over the cheapest route	+£211,893.82 (159.80%)	—	+£141,162.70 (106.46%)

Three-year total for 50 users, all costs included

In-house, two employed staff — £344,493.82

Co-managed, one internal plus provider layer — £273,762.70

Fully outsourced, standard tier — £132,600.00

The ratio worth remembering

At 50 users the three-year spread is 2.5980x. At 250 users, on the same ladder, in-house costs £327,572.21 a year against £210,000 for the full outsource and £208,643.70 co-managed — a spread of 1.5700x, with co-managed £1,356.30 (0.65%) cheaper than buying the whole function. The models converge as you grow, which is exactly why the decision has to be revisited every time headcount steps up.

What the IT outsourcing cost table cannot tell you

It cannot tell you what an hour of unavailable finance system costs your business, whether your application vendor will talk to a third party, or whether your operations director will accept a ticket queue. Those are the inputs that override the IT outsourcing cost arithmetic, and they should be written down before the quotes arrive, not after.

How to Cut Your IT Outsourcing Cost Without Cutting Cover

Most IT outsourcing cost savings come from scope and structure, not from beating a provider down on rate. A squeezed provider gives you a slower queue.

Right-size the user count your IT outsourcing cost is billed on

Providers bill per user, and most estates carry 5% to 10% of accounts belonging to leavers, shared mailboxes, service accounts and contractors who finished last spring. At £70 a user, ten stale accounts cost £8,400 over ten years and nothing at all to remove.

Buy coverage where you need it, not everywhere

If only the warehouse and the finance system need cover past 18:00, buy premium cover for those systems and standard cover for everyone else. Tiered contracts are normal and rarely offered unless you ask.

Separate the run from the change

Keep support and projects in different budget lines with different approval routes. It stops project overruns from being absorbed invisibly into your IT outsourcing cost, and it makes the day-rate comparison in the previous section actually usable.

Fix the estate before you price the support

IT outsourcing cost is a function of estate quality. Ageing laptops, unpatched servers and an unmanaged network generate the tickets you then pay somebody to answer. A hardware refresh often pays for itself in support tier alone — and our IT budget planning template for UK SMEs is a reasonable place to build that case.

Consolidate tooling before you outsource

Businesses commonly run two backup products, three remote access tools and an antivirus product nobody has logged into since 2023. Cancelling duplicates before an onboarding exercise means you stop paying for them and stop paying somebody to manage them.

Get the escalator and the exit right

As shown above, a 4% annual uplift costs £5,107.20 over three years on a £42,000 contract. Negotiating that clause, and a written exit and handover schedule, is worth more than a first-year discount that vanishes at renewal.

Lever	Effort	Indicative saving, 50 users
Remove 10 stale user accounts	Low	£8,400 / year
Tier coverage by system, not by person	Medium	£9,000–£30,000 / year
Cap the annual uplift at CPI	Low	£5,107.20 / 3 years
Cancel duplicate tooling	Low	£1,000–£6,000 / year
Move Microsoft licences to annual commitment	Low	£2,028 / year
Refresh the oldest 20% of devices	High	One support tier

The Microsoft line is the £40.56 per user per year monthly-billing premium applied across 50 users. It is the single easiest saving on this page, and a surprising number of businesses are still paying it.

Contract Clauses That Protect the IT Outsourcing Cost You Agreed

A support contract is mostly a definitions document, and those definitions set your IT outsourcing cost. These are the definitions that decide what you actually pay in year two.

The eight IT outsourcing cost clauses to read twice

Clause	What to require in writing
Scope of “supported”	A named list of devices, servers, applications and locations, updated quarterly
Service levels	Separate response and resolution targets, by priority, with the measurement method
Service credits	Automatic, not on request, and stated as a percentage of the monthly fee
Price review	Indexed and capped, with a stated notice period
Termination	Notice period both ways, plus termination for repeated service failure
Exit and handover	Documentation, credentials and data in named formats, at a fixed price
Data protection	Processor terms, sub-processor list, breach notification window
Key personnel	Named account and technical leads, with a replacement process

The two questions that reveal everything

Ask for last quarter’s ticket volumes and resolution times across the whole client base, not a case study. Then ask what happens to your estate if you leave in eighteen months. A provider comfortable answering both is a provider worth buying from.

The governance that keeps the contract honest

Quarterly reviews with a written agenda: volumes, breaches, root causes, changes to the supported list, and the forward roadmap. Without them, an outsourced arrangement drifts into invisibility, and the first sign that it stopped working is usually an incident.

A Decision Framework for Your IT Outsourcing Cost

If you want a defensible IT outsourcing cost answer rather than a preference, work through these five questions in order.

One: how many users, and how fast is IT outsourcing cost scaling

Under 100 users, a fully outsourced arrangement is almost always cheapest and usually best. Between 100 and 155, co-managed becomes competitive. Above 155 users the co-managed arithmetic wins outright on these inputs, and above roughly 250 the fully in-house case becomes arguable for reasons beyond price.

Two: what hours do you actually operate

If the answer includes evenings, weekends or shifts, the coverage arithmetic dominates everything else. Five point one four full-time employees per continuously staffed seat is not a number an SME can absorb.

Three: how unusual is your estate

Bespoke applications, industrial systems, regulated data or unusual hardware push you towards keeping capability inside. Standard cloud-first estates are the cheapest thing on earth to outsource.

Four: do you already employ IT staff

If yes, TUPE is in scope and the decision has a legal timetable attached. That alone often makes co-managed the pragmatic route, because the internal role changes rather than transfers.

Five: who will own the relationship

Outsourced IT fails most often because nobody internally owns the IT outsourcing cost or the relationship. Somebody has to read the reports, chase the trends and run the quarterly review. If no such person exists, buy co-managed and make the internal head that person.

If this is true of you	Start here	Because
Under 100 users, cloud-first, office hours	Fully outsourced, standard tier	£70 per user beats every in-house configuration tested
100–155 users with one internal specialist	Co-managed	The internal head is close to amortising
Over 155 users	Co-managed	Crossover reached at 155.53 users
24/7 operations of any size	Outsourced or co-managed cover	One staffed seat needs 5.1454 employees
Regulated, bespoke or industrial estate	Co-managed, capability retained	Judgement cannot be bought by the ticket
Existing IT employees	Take employment advice first	TUPE applies to service provision changes

The IT outsourcing cost decision we would make today

Buy the standard tier, insist on separate response and resolution targets, cap the uplift, agree the exit schedule in advance, and appoint an internal owner who is not the finance director’s laptop. Revisit the whole decision at 100 users, and again at 150. Our sector guides for accountancy practices, manufacturers, hotels and property managers work through the same arithmetic with sector-specific constraints.

Frequently Asked Questions About IT Outsourcing Cost

What is a fair IT outsourcing cost per user per month in the UK?

For a standard proactive package the published UK IT outsourcing cost range is £55 to £85 per user per month, and £55 to £85 is also named as the market average. Below £40 something has been removed; above £85 you should be receiving 24/7 cover, security operations centre monitoring or compliance support in return.

Is outsourcing cheaper than employing an IT team?

At the sizes most UK SMEs operate at, yes, and by a wide margin. At 50 users the modelled three-year totals are £344,493.82 in-house against £132,600.00 outsourced. The in-house case is made on control, business knowledge and response, not on unit price.

At what headcount does in-house IT become cheaper?

On a lean ladder of one technical head per 50 to 60 users and a £70 market rate, it does not — the next hire always lands before the break-even. The three-FTE configuration breaks even at 176.18 users, but a fourth head arrives at 125. Co-managed, by contrast, overtakes a full outsource at 155.53 users.

What is co-managed IT, and who is it for?

Co-managed keeps one or two internal people and buys the rest — out-of-hours cover, tooling, escalation and project capacity. It suits businesses above roughly 150 users, businesses with bespoke or regulated systems, and any business that already employs IT staff and does not want a transfer.

Does TUPE apply if we outsource our IT team?

Yes. TUPE covers service provision changes in all three directions: out to a contractor, between contractors, and back in-house. Employee liability information is due at least 28 days before transfer, failure to inform and consult can cost up to 13 weeks’ gross pay per employee, and incorrect information carries at least £500 per employee.

What is not included in a managed IT quote?

Usually three things: Microsoft licences, project work at day rates, and hardware. Also check onboarding (£1,000 to £5,000), new-starter setup (£50 to £150) and out-of-hours work outside contract (£100 to £200 an hour).

How much should we budget for IT projects on top of support?

Price them at published day rates rather than guessing. On the G-Cloud service management column, level 3 delivery runs from £646 to £1,100 a day across the four suppliers compared here, so a ten-day project is £6,460 to £11,000 before contingency.

How often should we retest the decision?

Retest the IT outsourcing cost every time headcount crosses a step in your staffing ladder, and at every contract renewal. The three models converge as you grow — at 250 users co-managed is only £1,356.30 a year cheaper than a full outsource — so the right answer genuinely changes.