Signing Bonus Amortisation Calculator

Work out signing bonus amortisation instantly with clear inputs, formula shown and shareable results.

About Signing Bonus Amortisation Calculator

Signing bonuses carry a clawback tied to a service period. Pro-rata clawbacks reduce the repayable amount every month you stay, while cliff-style clawbacks require the full amount back at any point before the period ends — a very different risk profile when weighing an early exit.

Formulas

Pro-rata earned

Earned = Bonus x Months served / Clawback period

Amount at risk

At risk = Bonus - Earned

Worked example

With the default values below, Signing Bonus Amortisation Calculator returns Amount repayable if you leave now of $375,000.00. Change any input above and every figure here is recalculated in your browser.

Inputs used

Signing bonus received: 600,000
Clawback period: 24
Months served so far: 9
Clawback basisone of Pro-rata by months served, Full amount within the period: Pro-rata by months served

Results

Amount repayable if you leave now: $375,000.00
Amount earned to date: $225,000.00
Months until fully earned: 15.0
Proportion earned: 37.50%

Step by step

1Values used
2Pro-rata earned
3Amount at risk
4Amount repayable if you leave now= 375,000.00
5Amount earned to date= 225,000.00
6Months until fully earned= 15.0
7Proportion earned= 37.50

Assumptions and limits

The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
In particular, this calculator does not take inflation, tax or fees or charges into account.
Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

Is the clawback on gross or net?

Contracts usually require repayment of the gross amount, leaving you to reclaim the tax — which can be difficult across tax years. Check the wording.

Can a new employer buy out the clawback?

Frequently yes, particularly for senior hires. Make it an explicit line in your offer negotiation rather than an afterthought.