Signing Bonus Repayment Calculator
Compare prorated signing-bonus repayment with a full-repayment cliff. See the gross amount retained, outstanding service and milestone scenarios.
Calculations run in your browser. Use one currency throughout; no exchange-rate conversion is performed.
Last reviewed 10 September 2026
Two repayment rules that give different answers
A signing bonus may be paid before the service requirement has been completed. This calculator compares a straight-line repayment rule with a full-repayment cliff using the gross amount already paid. It does not decide whether the clause is enforceable or whether a particular departure triggers it.
Cliff repayment = full received bonus before the deadline; zero at or after it
Only choose prorated if the agreement actually reduces repayment over time. A promise to stay for two years does not by itself mean half is forgiven after one year. Use the same service units in both fields. If the contract counts completed whole months, enter completed whole months; the calculator also accepts decimals for explicitly fractional-month scenarios.
Example: $12,000 paid for 24 months of service
After nine months, 15 of 24 months remain. Under straight-line proration, repayment is $12,000 × 15 ÷ 24 = $7,500, leaving $4,500 retained. Under a full cliff rule, the repayment remains $12,000. At month 24, both illustrated rules produce zero repayment.
The comparison table shows milestones so you can see whether one additional month changes the model. These are examples of contract arithmetic, not advice about whether or when to leave employment.
Gross repayment is different from tax recovery
The gross amount on a bonus statement may exceed the cash deposited after withholding. This calculator does not subtract an assumed tax refund from repayment. Payroll corrections, tax years, jurisdiction and the agreement can affect the amount requested and how any tax recovery works.
Do not count a future promised installment as money already received. Multiple installments with separate service clocks should be modelled separately. A waiver, termination exception or repayment based on net cash needs a different model.
For an employer-specific example of service-based repayment, see the North Carolina sign-on and retention policy. For U.S. supplemental-wage withholding context, see IRS Publication 15. Neither source determines the terms of your own agreement.
Related bonus decisions
A signing bonus is associated with joining, whereas a retention bonus is associated with staying. To estimate the annual incentive earned during a partial performance period, use the prorated bonus calculator. For a hypothetical net-payment promise, use the bonus gross-up calculator.