Bonus Proration Calculator

Prorate a target bonus by days worked and performance.

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CurrencyAnnual salary ($)Target bonus (%)Days worked in periodDays in bonus periodPerformance / payout factor (%)

For new joiners, leavers or mid-year starts: prorate the target bonus by days worked, then apply the company/individual payout multiplier.

$8,630

Final bonus payable

$15,000

Full target bonus

58%

Proration factor

$8,630

Prorated (before performance)

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Disclaimer: This tool is for general informational and estimation purposes only and is not professional financial, tax, accounting or legal advice. All figures are estimates — verify with a qualified professional before making decisions. Read the full disclaimer.

Paying a bonus to a mid-year joiner or leaver? Prorate the target by days worked and apply the payout factor for a fair, defensible figure — no awkward over- or under-payments.

How to embed Bonus Proration Calculator on your website

Add this free tool to your own site, blog or intranet — it's 100% free to embed. Paste this snippet where you want the tool to appear; it loads a clean, self-contained version with no ads or navigation.

<iframe src="https://tooljolt.com/embed/bonus-proration-calculator" title="Bonus Proration Calculator" width="100%" height="640" style="border:1px solid #e5e7eb;border-radius:12px" loading="lazy"></iframe>

About Bonus Proration Calculator

New joiners, leavers and mid-year starters rarely earn a full bonus. This calculator prorates a target bonus by days worked and applies the company or individual payout factor for a fair, defensible figure.

How to use Bonus Proration Calculator

1Enter the salary, target bonus % and days worked.
2Enter the days in the bonus period and payout factor.
3Read the prorated and final bonus payable.

Why use Bonus Proration Calculator?

✓Calculating bonuses for mid-year joiners and leavers.
✓Running fair, consistent bonus cycles.
✓Modelling bonus accruals for finance.

Frequently asked questions

How is a prorated bonus calculated?+

Multiply the full target bonus by the fraction of the period worked (days worked ÷ days in period), then apply the company or individual performance payout multiplier.

Do new employees get a full bonus?+

Usually not — bonuses are typically prorated by the portion of the performance period actually worked, then adjusted by the achieved payout factor.