13th Cheque Calculator
Updated November 2026 · Free · No sign-up
Calculate your 13th cheque — South Africa’s contractual year-end extra month: the amount, pro-rata rules for joiners/leavers, and the tax-spreading option that smooths the December hit.
Quick answer: A 13th cheque = one month’s basic salary, usually paid in December — contractual/policy-based in South Africa (NOT statutory). Pro-rata applies for partial years where policy provides; tax can be spread monthly to avoid the December spike.
13th Cheque Facts
| Legal status | Contractual, not statutory — but consistent past practice can create an enforceable expectation |
| Base | Usually one month’s BASIC (check policy: some use gross) |
| Pro-rata | Joiners/leavers get months/12 where policy provides; resignation before the payment date may forfeit per policy wording |
| Timing | December (sometimes November) — or split structures |
| Tax | Fully taxable — either as a December lump (big PAYE spike) or SPREAD monthly by payroll election |
Worked Examples
Example 1. R22,000 basic, full year, 26% marginal: gross R22,000 → ~R16,280 net in December (unspread).
Example 2 — pro-rata leaver. Leaving end-September with a pro-rata clause: 9/12 × 22,000 = R16,500 in the final pay; without the clause and before the payment date, policy wording decides — read it before resigning in November.
Example 3 — the spread election. Tax-spreading adds 1/12 of the bonus’s tax to each month’s PAYE so December’s cheque arrives nearly whole — same annual tax, smoother cash.
Structured vs True Bonus
Many SA packages are quoted "TCTC incl. 13th cheque" — i.e., your own salary repackaged (annual ÷ 13), not extra money. A TRUE 13th is salary + bonus month. Check the offer letter’s arithmetic; the global 13th-month map shows where it’s statutory instead (not here).
Frequently Asked Questions
Is a 13th cheque compulsory in South Africa?
No — it’s contractual/policy-based; only consistent past practice can make it enforceable. Statutory 13th months exist elsewhere (PH, Brazil), not SA.
How is a 13th cheque calculated?
Typically one month’s basic salary, pro-rated by months/12 for partial years where policy provides.
Do I get my 13th cheque if I resign?
Policy wording decides — pro-rata clauses pay months worked; payment-date conditions may forfeit it for pre-December leavers.
How is a 13th cheque taxed?
Fully taxable — as a December lump (PAYE spike) or spread monthly by payroll election; annual tax is identical.
Is "TCTC including 13th cheque" extra money?
Usually not — it’s your annual package ÷ 13; verify whether the 13th adds to or merely repackages the salary.
✓ Formula verified • Last updated: November 3, 2026