Software Maintenance Cost: Essential Post-Launch Risk Guide
Software maintenance cost is the line most businesses discover after launch, when the build is signed off and the product starts ageing from its first live day. This guide breaks the annual figure into its five real components, explains why the familiar fifteen-to-twenty per cent rule exists and when it is wrong, sets out UK price bands from a £3,000 internal tool to a £120,000+ integrated platform, prices the recurring hosting, API and monitoring bills a build quote never mentions, compares ad hoc, retained and fixed-fee support models, lists the hidden costs that wreck maintenance budgets — knowledge loss, undocumented deployment, data growth — and gives you a scoring method that reaches a defensible annual figure in an afternoon.
