Contract Renewal Calculator

This calculator projects the true cost of renewing a contract over multiple years by compounding your annual escalation rate against the current cost, year by year, then summing those escalated years into a total renewal cost. Notice that the escalation is applied starting from the first renewal year (current cost times (1 + escalation) to the power of 1, not 0) — the model assumes the renewal term begins after one escalation step has already been applied, which matches how most vendor renewal quotes work: you're negotiating the price for the period after your current term ends, not a continuation of today's rate. A negotiated discount percentage is then applied against that full escalated total to arrive at the adjusted renewal cost you'd actually pay. The final-year cost and cumulative escalation percentage show how much more expensive the last year of the term is compared to today, which is useful for understanding just how much a "modest" 3% annual escalation compounds over a 3-5 year term.

Missed notice exposure equals that same final-year cost — the idea being that if you blow past your cancellation notice deadline, you're on the hook for another full year at the most escalated rate rather than the average rate across the term. The break-even discount figure is intentionally simple: it just expresses switching cost as a percentage of total renewal cost, meaning it tells you the minimum discount an alternative vendor would need to offer (relative to your current renewal price) to make switching worth the one-time transition expense — it does not account for the new vendor's own escalation clauses or contract length, so use it as a first-pass filter rather than a full vendor comparison. Notice period (days) is collected for your own reference but doesn't currently factor into any calculated output — missed notice exposure is computed from the escalated final-year cost regardless of how many days of notice your contract requires.