How is SSB calculated on overtime in Myanmar?

How SSB works for Myanmar employers

Overtime payments are wages for SSB purposes in the month of payment and are added to the Insured Person's regular wage to form that month's SSB wage base. The standard MMK 300,000/month cap still binds. The practical effect:

• For salaried employees already at or above the cap, overtime adds no extra SSB.
• For hourly / daily-wage workers under the cap, overtime can push the wage base up — possibly all the way to the cap — before the 2% / 3% rates apply.

This is the same treatment as bonuses; both are wages in the month of payment, both are subject to the same monthly cap.

Decision tree — overtime + SSB

Base monthly wage	Overtime in month	SSB impact
≥ MMK 300,000	Any amount	No additional SSB — already capped
MMK 200,000	MMK 50,000	SSB on combined MMK 250,000 (still under cap)
MMK 200,000	MMK 200,000	SSB on MMK 300,000 (cap binds)
MMK 100,000	MMK 30,000	SSB on MMK 130,000 (still under cap)

Contribution rates and the wage-base cap

Item	Rate	Maximum (cap = MMK 300,000)
Employee contribution	2%	MMK 6,000 / month
Employer contribution	3%	MMK 9,000 / month
Total	5%	MMK 15,000 / month per employee

Worked example — factory daily-wage worker

A factory worker earning MMK 5,000/day works 22 days at base + 30 hours OT at 1.5× the normal hourly rate (assume MMK 625/hour):

Base wage (22 × MMK 5,000)	MMK 110,000
Overtime hours (30 × MMK 625 × 1.5)	MMK 28,125
Total monthly wage	MMK 138,125
SSB wage base (under cap)	MMK 138,125
Employee SSB (2%)	MMK 2,763
Employer SSB (3%)	MMK 4,144

Worked example — salaried mid-senior IP

An IP earning MMK 800,000/month (above cap) works overtime worth MMK 100,000:

Total monthly wage	MMK 900,000
SSB wage base (capped)	MMK 300,000 (no change)
Employee SSB	MMK 6,000
Employer SSB	MMK 9,000

Registration and monthly returns

• Include OT in the wage base for the month it is paid.
• Re-apply the cap on the combined figure each month.
• Show OT separately on the payslip; document base + OT for SSB and PIT.
• Track OT carefully under the Factories Act / S&E Act for compliance with maximum hours.
• Retain payroll and SSB records 7 years.

Benefits SSB provides

• Medical (IP + dependants).
• Sickness cash benefit (after 1+ year of contributions).
• Maternity — 14 weeks of paid leave with cash benefit through SSB.
• Work-injury benefit (Day 1) — particularly relevant for OT-heavy roles.
• Funeral grant + survivors' pension.

Common variations

• Public-holiday OT — paid at the statutory premium; included in wage base.
• Standby allowances — typically wages for SSB.
• Reimbursements (transport, meal) — generally not wages for SSB.

Common SSB mistakes

• Treating OT as outside SSB scope and underpaying.
• Forgetting to re-apply the cap when OT pushes a previously under-cap IP to the cap.
• Mixing OT into base wage so the payslip is unclear.

Practical workflow for HR teams

Whether the SSB obligation in question is registration, contribution calculation, a benefit claim, or a leaver event, three operational habits prevent most non-compliance issues:

1. Anchor the SSB calendar to payroll close. The 15th of the following month is non-negotiable for the contribution return at the township SSB office. Treating SSB as a payroll-close output, not a separate task, eliminates last-minute filings.
2. Reconcile the SSB register against the payroll register monthly. Joiners enrolled within 30 days, leavers deregistered within 30 days, dependant changes captured — these are the three reconciliation lines that catch most defects before they become audit findings.
3. Cap discipline. Apply the MMK 300,000/month wage cap on every Insured Person, every month, before computing 2% / 3%. Most Myanmar SSB overpayments trace back to a payroll system that runs the rate against full gross.

Payslip transparency

Show the SSB withholding line distinctly on the payslip, alongside Personal Income Tax (PIT). Employees should see the 2% line item, the wage base it was applied to, and the SSB ID. Transparent payslips reduce employee queries about take-home pay and create a clean trail for any future SSB or IRD audit. Where the wage cap binds, label the line "SSB (capped at MMK 300,000 base)" so the maths is self-explanatory.

Multi-site coordination

For employers operating across more than one township, the township SSB office for the workplace — not the corporate head office — is the operational counterparty. Maintain a per-site SSB ledger covering: employer code, township office, monthly return file location, and copy of stamped acknowledgements. Centralised SSB tracking with site-level sub-ledgers is the simplest way to reconcile a multi-site monthly return. The same logic applies for PIT remittances to the IRD office covering the workplace.

Recordkeeping checklist

• Original employer registration acknowledgement.
• Per-IP enrolment forms with stamped SSB receipts.
• Dependant registration forms — track updates for life events (marriage, birth).
• Monthly contribution returns + payment vouchers (12 per year).
• Annual SSB summary return.
• Wage / service certificates issued on benefit claims.
• Deregistration acknowledgements for leavers.
• Penalty assessments and remediation correspondence (if any).

Retention rule: at least 7 years for SSB records, aligned with the payroll-record retention requirement under the Income Tax Law and the personnel-record requirement under ESDL.

Related: How SSB is calculated on bonuses, SSB salary cap, How SSB is calculated.