Whether you’re setting up a BOI-promoted company, opening a regional office, or hiring your first local employee in Thailand, understanding Thailand’s 2026 labor regulations is essential.
For foreign employers, the challenge is not only understanding the Labour Protection Act. Payroll, Social Security, minimum wage, employee benefits, work permits, and company-level requirements can all become part of the employment setup.
In 2026, two payroll developments deserve particular attention: the Social Security contribution ceiling increased from THB 15,000 to THB 17,500, while the Employee Welfare Fund is scheduled to begin collecting contributions on 1 October 2026. Thailand’s maternity and family-related leave rules also changed under the Labour Protection Act (No. 9), which took effect in December 2025.
hailand Employment Law 2026: What Foreign Employers Need to Watch
Three developments are particularly relevant to foreign employers.
The Social Security wage ceiling increased effective January 2026. The maximum monthly contribution base increased from THB 15,000 to THB 17,500, increasing the maximum employer contribution from THB 750 to THB 875 per employee per month. The reform is being introduced in three phases, with the ceiling scheduled to rise further in 2029 and 2032.
The Employee Welfare Fund (EWF) is scheduled to begin collecting contributions from 1 October 2026. Under the current law, the initial contribution rate is 0.25% from the employer and 0.25% from the employee. Certain employees may be excluded where statutory exemption conditions apply, such as qualifying provident fund arrangements.
Minimum wage rates remain different across provinces and certain sectors. The current schedule ranges from THB 337 to THB 400 per day, with Bangkok, Phuket, Chonburi, Rayong and several other locations at THB 400 under the applicable notification.
1. Minimum Wage 2026
Thailand’s minimum wage is expressed as a daily rate, rather than a single nationwide monthly salary.
| Province / Area | Daily Rate (THB) | Notes |
|---|---|---|
| Bangkok | 400 | Effective under the current national wage notification |
| Chonburi | 400 | Current applicable provincial rate |
| Phuket | 400 | Current applicable provincial rate |
| Rayong | 400 | Current applicable provincial rate |
| Koh Samui District | 400 | Current applicable provincial rate |
| Mueang Chiang Mai District | 380 | Current applicable provincial rate |
| Mueang Songkhla District | 380 | Current applicable provincial rate |
| Narathiwat, Pattani, Yala | 337 | Lowest rate under the current schedule |
The current Ministry of Labour notification also provides sector-specific THB 400 rates for certain hotel and entertainment businesses.
For budgeting purposes, an employer can convert a daily wage into an estimated monthly amount based on the employee’s working schedule. However, multiplying the daily rate by 26 days is only a budgeting calculation and should not be treated as a statutory monthly minimum wage.
Foreign employers should therefore verify:
- The employee’s actual workplace
- The applicable provincial or district rate
- Whether the company falls under a sector-specific THB 400 rate
- The employee’s working arrangement
- The current effective notification
2. Employment Contracts
Thailand does not require every employment relationship to use the same type of formal written contract. However, clearly documenting employment terms is an important risk-management practice, particularly for foreign employers.
A written employment agreement should normally address:
- Position
- Salary and compensation
- Work location
- Working hours
- Benefits
- Leave
- Probation arrangements
- Employment duration where applicable
- Termination provisions
- Applicable workplace rules
Fixed-Term Contracts
Fixed-term arrangements are generally intended for genuinely temporary situations, such as:
- Temporary work
- Project-based assignments
- Seasonal activities
The contract should clearly state the relevant period or project.
Foreign employers should be careful about using consecutive fixed-term contracts for positions that are effectively permanent. The actual circumstances of the employment relationship can become relevant if a dispute arises.
Permanent Contracts
Permanent employment is commonly used for ongoing roles.
A probation period may be agreed between the employer and employee. However, 119 days should not be described as Thailand’s statutory maximum probation period.
The more important legal threshold is 120 consecutive days of employment, because an employee who reaches that threshold may become entitled to statutory severance in an employer-initiated termination where the statutory conditions are otherwise met.
This distinction is important when foreign HR teams design probation and performance-review procedures.
3. Severance Pay & Termination
Thai statutory severance generally depends on the employee’s length of continuous service.
| Length of Service | Severance Entitlement |
|---|---|
| 120 days – under 1 year | 30 days’ wages |
| 1 year – under 3 years | 90 days’ wages |
| 3 years – under 6 years | 180 days’ wages |
| 6 years – under 10 years | 240 days’ wages |
| 10 years – under 20 years | 300 days’ wages |
| 20 years or more | 400 days’ wages |
These statutory amounts are reflected in the Ministry of Labour’s guidance on employee rights.
Depending on the circumstances, employers may also need to settle:
- Notice or payment in lieu where applicable
- Accrued unused annual leave
- Other contractual or statutory amounts due at separation
When Severance Is Not Required
Thai law provides exceptions in certain cases of serious employee misconduct, subject to the specific statutory conditions.
Examples may include:
- Dishonesty
- Intentionally causing serious damage to the employer
- Gross negligence causing serious damage
- Serious violation of workplace rules where the required warning and other legal conditions are met
Employers should review the facts and supporting documentation before relying on a statutory exception to severance.
The original statement that wrongful termination may result in a fixed penalty of “up to 300 days’ wages” has been removed because the outcome depends on the circumstances and applicable legal remedies rather than one universal compensation figure.
4. Thailand Employment Law 2026: Social Security and Workmen’s Compensation
Effective 1 January 2026, the maximum monthly wage base for Section 33 Social Security contributions increased from THB 15,000 to THB 17,500.
The contribution rate remains:
- 5% employer
- 5% employee
This produces a maximum monthly contribution of:
- THB 875 from the employer
- THB 875 from the employee
for the 2026–2028 phase.
For an employee earning THB 17,500 or more, the employer contribution therefore increased by THB 125 per month compared with the previous ceiling.
The scheduled phases are:
| Period | Maximum Wage Base | Maximum Employer Contribution |
|---|---|---|
| 2026–2028 | THB 17,500 | THB 875 |
| 2029–2031 | THB 20,000 | THB 1,000 |
| From 2032 | THB 23,000 | THB 1,150 |
Employers should update payroll systems, salary calculations, payslips, and payroll budgets accordingly.
Enhanced Benefits in 2026
The higher contribution ceiling also increases the wage base used for certain Social Security benefits. Published guidance notes increases to several benefit amounts under the new ceiling, including sickness, maternity, death and old-age benefits.
Employee Welfare Fund (EWF)
The Employee Welfare Fund is separate from Social Security.
Under the current law, contribution collection is scheduled to begin on 1 October 2026, at:
- 0.25% from the employer
- 0.25% from the employee
The Ministry of Labour states that approximately 105,416 businesses and 5.57 million employees are expected to fall within the Fund’s scope, subject to statutory exclusions.
Employers should review whether they are covered, check any applicable exemption, and prepare their payroll systems before October.
The previous wording that the contribution rate was still awaiting confirmation has therefore been removed because the current Ministry of Labour information has already stated the applicable initial rate.
Changes to Leave Rules That Foreign Employers Should Know
One important change missing from the original article is Thailand’s updated maternity and family-related leave framework.
The Labour Protection Act (No. 9) B.E. 2568 took effect on 7 December 2025.
The amendment increased maternity leave from 98 days to 120 days and requires employers to pay normal wages during maternity leave for up to 60 days.
It also introduced:
- Up to 15 additional days of childcare leave in specified circumstances, with 50% wage compensation
- 15 days of paid leave for a spouse to assist after childbirth
These provisions are already relevant to employers in 2026.
This means companies should review not only their employee handbook but also their leave-management and payroll systems.
FAQ
Do Thailand’s labor laws apply to foreign-owned companies?
Foreign-owned companies operating in Thailand are generally subject to applicable Thai employment requirements. Specific obligations can depend on the company’s structure, business activity, employee status, and any applicable legal exemptions.
Can we hire in Thailand without setting up a local entity?
An Employer of Record (EOR) may provide one possible employment structure for companies that need to employ people before establishing or operating their own local employment infrastructure.
The appropriate structure should still be reviewed against the company’s business, tax, immigration, and employment requirements.
Our employee resigned — do we still owe statutory severance?
Voluntary resignation generally does not create an entitlement to statutory severance. However, employers may still need to settle accrued leave and other amounts due under the employment arrangement.
When does the Employee Welfare Fund start?
Under the current law, collection is scheduled to begin on 1 October 2026, with an initial contribution of 0.25% from the employer and 0.25% from the employee.
Is 119 days the maximum probation period in Thailand?
No. 119 days should not be presented as a statutory maximum probation period. The important threshold is 120 consecutive days for statutory severance eligibility in applicable employer-initiated termination cases.
Does Thailand have one minimum wage for the whole country?
No. Minimum wages vary by province, district, and certain sectors. The current official schedule ranges from THB 337 to THB 400 per day.
2026 HR Compliance Checklist for Foreign Employers in Thailand
- Verify the applicable minimum wage for each employee’s actual workplace.
- Update payroll systems to use the THB 17,500 Social Security ceiling from January 2026.
- Check that the maximum employer and employee Social Security contribution is THB 875 for the 2026–2028 phase.
- Maintain clear written employment terms covering compensation, working arrangements, leave, and termination.
- Review probation arrangements carefully and do not treat 119 days as a statutory maximum.
- Track continuous service because the 120-day threshold affects statutory severance eligibility.
- Review maternity and family-related leave according to the 2025 amendment effective from December 2025.
- Confirm Social Security and Workmen’s Compensation Fund requirements.
- Determine whether the company falls within the scope of the Employee Welfare Fund.
- Prepare payroll systems for the 1 October 2026 EWF collection date.
- Check Thai-language work regulations once the workforce reaches 10 employees. Thai law requires employers with 10 or more employees to establish these regulations.
- Review workplace welfare requirements as headcount increases.
- Verify the applicable visa and work-permit requirements for expatriate employees.
- Do not assume that one Thai-to-foreign employee ratio applies to every company or visa category. Confirm the applicable framework for the employer and employee.
How BigFish Global Consulting Can Help
BigFish Global Consulting supports international companies with HR and workforce administration across Southeast Asia.
For companies operating or expanding into Thailand, relevant support can include:
- Employer of Record (EOR) — employment administration for companies that do not yet operate their own local employment structure
- Payroll & Social Security Management — payroll administration and statutory contribution coordination
- HR Consulting — employment contracts, workplace policies, compliance reviews, and termination support
- Work Visa & Immigration — work permits and visa-related support
- Legal Services — company registration, BOI-related support, and regulatory assistance
Internal links:
