Date and Time Tools
Thailand severance-pay calculator by service length
Calculate inclusive continuous service, match the section 118 wage-day tier, and estimate statutory severance from the last monthly or daily wage entered.
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Thailand severance-pay calculator
Change an input to recalculate. Nothing entered here is saved or sent to THcount.
Preliminary statutory estimate
Quick answer
How is statutory severance calculated from service length in Thailand?
When a dismissal qualifies under section 118, match continuous service to 30, 90, 180, 240, 300, or 400 wage days and multiply by the last daily wage. Monthly wage is converted to a daily basis by dividing by 30.
How to use this tool
- Enter the start and last dates of continuous employment with the same employer.
- Choose monthly or daily pay and enter the last wage used as the calculation base.
- Review service length, wage-day tier, and estimate, then confirm eligibility and wage components with the authority or a qualified adviser before relying on it.
How the calculation works
The tool counts from the employment start through the last employment date inclusively. It checks 120 days and the 1-, 3-, 6-, 10-, and 20-year calendar thresholds. The resulting tier is multiplied by the last daily wage. Monthly pay uses monthly wage × tier days ÷ 30; daily pay uses daily wage × tier days. Integer satang arithmetic is used with half-up rounding only where division is needed.
Examples
| Example | Input | Expected result |
|---|---|---|
| Exactly 120 days | |
120 continuous days reaches the 30-wage-day tier, estimated at THB 18,000.00 |
| Eleven years of service | |
At least 10 but under 20 years gives 300 wage days, estimated at THB 300,000.00 |
| Twenty years of service | |
At least 20 years gives 400 wage days, estimated at THB 400,000.00 |
Limitations
- This estimate does not decide eligibility, section 119 exclusions, or legal disputes and is not legal advice.
- It assumes continuous service with one employer, accurate dates, and inclusive counting of both entered dates.
- Only monthly and daily wages are supported; piecework, disputed wage components, and special fixed-term exceptions are outside scope.
- Notice pay, unpaid wages, annual leave, tax, interest, special damages, and rights under other laws or agreements are omitted.
Frequently asked questions
Does section 118 severance apply before 120 continuous days?
The section 118 tiers begin at 120 continuous days, so this tool shows zero for that tier below 120 days. Outstanding wages, notice pay, or other rights can still exist.
How is a monthly wage converted to daily wage?
The tool divides the last monthly wage by 30 and multiplies by the statutory tier days; it does not use the actual workdays in that month.
Can I use this result after resignation or dismissal for misconduct?
The tool does not decide eligibility. Resignation and section 119 cases can remove severance entitlement, while some contract endings or retirement cases have specific rules. The facts should be reviewed by a labour inspector or qualified adviser.
Does the estimate include notice pay, tax, or fund balances?
No. It estimates only the section 118 tier from the entered wage and excludes notice pay, tax, provident funds, unpaid wages, unused leave, and other damages or claims.
References
- Royal Thai Government Gazette — Labour Protection Act (No. 7) B.E. 2562, section 15 amending section 118 (official Thai text) Verified 2026-08-04
- Office of the Council of State — Labour Protection Act B.E. 2541, sections 118 and 119 (official Thai text) Verified 2026-08-04
- Department of Labour Protection and Welfare — online petition service Verified 2026-08-04
Content and calculation method last reviewed: