Step-by-step calculation
This walk-through assumes a Myanmar tax resident receiving ordinary monthly salary plus overtime under the Factories Act 1951 / Shops & Establishments Act 2016 (or sectoral overtime rules). Default: single, no dependant allowances, no donations. Brackets are from the Union Tax Law 2025-2026 (Section 5). Tax year: 1 April – 31 March. Overtime is assessable as ordinary wages — the labour-law multiple changes the cash amount but not the tax treatment.
Step 1 — Apply the 20% basic personal relief
Add overtime to base salary in the year paid. The 20% basic personal relief applies to the combined gross (capped MMK 10,000,000/year).
| Annual base salary | (figure) |
| Plus: overtime earned in the year | (figure) |
| = Annual gross | (sum) |
| Less: 20% basic personal relief | − up to MMK 10,000,000 |
| Less: spouse / child / parent allowances | 0 in default case |
| Annual taxable income | = residual |
Step 2 — Apply the Union Tax Law 2025-2026 brackets
| Annual taxable income | Marginal rate |
|---|---|
| 1L – 20L (MMK 0 – 2,000,000) | 0% |
| 20L – 100L (MMK 2,000,000 – 10,000,000) | 5% |
| 100L – 300L (MMK 10,000,000 – 30,000,000) | 10% |
| 300L – 500L (MMK 30,000,000 – 50,000,000) | 15% |
| 500L – 700L (MMK 50,000,000 – 70,000,000) | 20% |
| 700L & above (MMK 70,000,000+) | 25% |
Worked illustration — base salary MMK 4,800,000 + overtime MMK 1,200,000 (across the year) = MMK 6,000,000 annual gross (taxable = MMK 4,800,000 after 20% relief):
| Band | Amount in band (MMK) | Rate | Tax (MMK) |
|---|---|---|---|
| First 2,000,000 | 2,000,000 | 0% | 0 |
| 2,000,001 – 4,800,000 | 2,800,000 | 5% | 140,000 |
| Annual PIT (incl. overtime) | MMK 140,000 | ||
Step 3 — Convert to monthly withholding
- Per-month actuals: add monthly overtime to base salary and apply cumulative-bracket PAYE.
- Smoothed: if overtime is roughly steady, build the projection from a normal-month estimate and trueup at year-end.
- Reconcile on the annual employer reconciliation by 30 June.
What about SSB and the true net salary?
Overtime is part of the wage base for SSB up to the MMK 300,000/month cap. For low-wage workers whose base is below the cap, overtime can push the wage base higher, raising the 2% employee deduction proportionally up to the MMK 6,000/month maximum.
| High-overtime month gross | MMK 400,000 base + MMK 200,000 OT = MMK 600,000 |
| Less: PIT (per cumulative bracket) | − (per calculation) |
| Less: SSB (employee, 2% on cap) | − MMK 6,000 |
| Monthly take-home | = residual |
Employer takeaway
Treat overtime as ordinary salary for tax — same brackets, same 20% relief, no special exemption. Add monthly OT to base before PAYE; recompute the projection if OT is materially higher or lower than expected. Remit PIT to IRD by the 15th of the following month, reflect on the annual reconciliation by 30 June, and retain attendance/OT records and PAYE math for at least 7 years.
Common variations to watch for
- Public holiday work — typically paid at higher multiple under the labour rules; tax treatment unchanged (assessable salary).
- Night-shift premium — assessable salary.
- OT cap under sectoral law — tax doesn't change with the cap; the labour cap only limits how much OT can be paid.
- Compensatory time off in lieu — when later encashed, treated as salary in the year of payment.
- Voluntary overtime — same tax treatment as statutory overtime.
Common PIT mistakes to avoid
- Treating overtime as exempt or low-rate — there is no special rate.
- Excluding overtime from SSB — it is part of the wage base.
- Using a static monthly PAYE for variable-OT staff — recompute as actuals change.
- Missing the 15th remit deadline — interest applies. See penalties.
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