Converts a renewal uplift percentage into the additional money paid over the remaining term, so "8% is standard" arrives at the board as a figure rather than a phrase.
Enter your current annual cost, the proposed increase percentage and the number of years it will apply. The calculation is a fixed formula executed locally: nothing is transmitted or retained, and re-entering the same figures always returns the same answer.
Last reviewed 3 July 2026 · Free and ungated
Operators from the Global Board who have sat on both sides of renewal negotiations can show you where vendors usually have room to move. Put the renewal to them through a complimentary first report.
Challenge the assumptions before committingAdditional cost = current annual cost × increase % × years. How our tools work
A percentage is easy to wave through; a sum of money is not. The calculator multiplies the current annual cost by the increase percentage, then by the years the increase will apply, producing the extra spend the uplift adds across the term. Account managers quote percentages for a reason: "eight per cent, in line with the market" sounds like weather, while the equivalent euro figure sounds like a decision, which is what it is.
A platform contract currently costs €400,000 a year. The vendor proposes an 8% uplift at renewal, and the new term runs three years. The additional cost is €400,000 × 8% × 3 = €96,000 over the term. Now the comparison becomes possible: if running a genuine alternative process (market scan, two competing bids, migration costing) would cost €40,000 of time and attention, the uplift is paying for the absence of that process more than once over.
The formula deliberately understates in three directions and overstates in none, which is worth knowing before you quote it.
It cannot say whether the increase is justified by genuine cost inflation on the vendor's side, whether your alternatives are real or theatrical, or what the vendor's walk-away point is. It converts a percentage into money so that the renewal gets decided rather than defaulted. The judgement that follows still has to be argued.
Usually, but only against something. Vendors move for credible alternatives, longer commitments, reference value or expanded scope. Displeasure alone rarely moves them. The output of this calculator tells you how much negotiating effort the uplift is worth funding.
Not always: a full process on a small contract can cost more than it saves. Compare the term impact from this calculator with a realistic estimate of process cost and switching cost. Where the impact is a multiple of the process cost, defaulting to renewal is the expensive habit.
The formula applies the percentage to your current base for each year, which keeps the arithmetic transparent. For repeated annual uplifts, treat the result as a floor: the compounded reality is worse, and you can approximate it by running the calculator again with the increase applied to a raised base.