Software Payback Calculator

What does buying the software really cost — cash, setup, ongoing maintenance and a later migration — and how long until a growing client base pays it back? Watch the cost and revenue lines cross.

Cost inputs
Software cost (cash)
one-off purchase price
Build / setup
one-off, to stand the system up ·
Maintenance
every month · /mo
Migration
one-off later cost ·
Migration happens in month
when the migration cost lands on the timeline
Replacement
stop-gap gets ripped out & replaced ·
Replacement happens in month
when the replacement cost lands on the timeline
Day rate
cost of one man-day (applies to build, maintenance & migration)
Revenue inputs
New clients / month
signed each month; the base grows over time
Price per client
monthly subscription (€/mo)
Timeline horizon
how many months the chart spans
Payback — cumulative cost vs revenue
Cumulative cost Cumulative revenue Payback point
Total cost
Total revenue
Net position