Estimate a 3–5-year ERP cost range from user-years, an illustrative per-user cost band and your one-time implementation costs.
Choose the type of system, enter user-years (for example 20 users for 5 years = 100 user-years) and the one-time costs you have been quoted. The tool multiplies user-years by the low and high recurring cost per user per year and adds the one-time costs.
What counts as recurring. Put the subscription, the support plan or AMC, hosting (if separate) and any per-transaction charges into the per-user figure. If you are buying a perpetual licence, spread the licence over the years you will use it and add the yearly AMC.
The ranges are illustrative. They are not quotes from any vendor and are only there to show the arithmetic. Replace them with written quotes. Enter prices before GST: a registered business can usually claim the 18% GST as input tax credit.
Worked example (illustrative). 20 users × 5 years = 100 user-years at ₹15,000–₹50,000 a year, plus ₹6,00,000 one-time: low = 100 × ₹15,000 + ₹6,00,000 = ₹21,00,000; high = 100 × ₹50,000 + ₹6,00,000 = ₹56,00,000.
Limits. Renewal uplifts, exchange-rate moves on USD pricing, internal staff time and exit costs are not modelled. Add them using the 3–5-year TCO guide and the renewal uplift calculator.
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