Labour Law
Navigating Thai Labour Law
Thailand’s employment framework is built around the Labour Protection Act B.E. 2541 (1998), amended most recently by the LPA No. 9 in December 2025, together with the Civil and Commercial Code, the Labour Relations Act, and the Social Security Act. For foreign employers operating hospitality venues, construction projects, or professional services on Koh Samui and Koh Phangan, this framework creates obligations that begin the moment you hire your first employee and persist long after any termination.
The law is employee-protective by design. Thai labour courts routinely rule in favour of employees when contracts are vague or absent, probationary terms exceed 119 days, or severance calculations fall short of statutory minimums. There is no concept of “at-will” employment: every termination without statutory cause triggers severance pay, advance notice requirements, and the risk of an unfair dismissal claim that can result in reinstatement or substantial additional compensation ordered by the court.
The December 2025 amendments have increased maternity leave to 120 days with 60 days paid by the employer, introduced 15 days of paid paternity leave, and expanded reporting obligations for employers with ten or more staff. Social security contribution ceilings increased from January 2026, with further rises scheduled through 2032. On Koh Samui, the minimum daily wage stands at THB 400, the highest tier in the country, and the hospitality and entertainment sectors are subject to this rate nationwide regardless of location.
Our firm advises foreign employers on every stage of the employment lifecycle: structuring compliant contracts, managing day-to-day HR obligations, handling disciplinary processes, and representing clients before the Labour Court when disputes cannot be resolved. We bridge the gap between international management expectations and the specific requirements of Thai labour law.
Our Labour Law Services
Employment Law Services
Employment Contract Drafting
Bilingual Thai-English employment agreements tailored to your business, covering probationary terms, job descriptions, compensation structures, overtime provisions, and restrictive covenants. Thai-language contracts prevail in court, so precision in drafting is essential.
Work Rules & Employee Handbooks
Mandatory for employers with ten or more employees, work rules must comply with the Labour Protection Act and be communicated to all staff within 15 days. We draft work rules covering discipline, leave, working hours, and the new annual reporting obligations introduced in December 2025.
Termination & Severance Advisory
Navigating Thailand’s strict termination procedures: calculating statutory severance across six tenure brackets, timing notice periods to coincide with pay cycles, documenting cause-based dismissals to meet Section 119 requirements, and managing garden leave arrangements.
Unfair Dismissal Defence
Full litigation services before the Central Labour Court and Provincial Labour Court, covering wrongful dismissal claims, wage disputes, overtime calculations, and appeals. The Labour Court has its own procedural rules distinct from civil litigation, requiring specialist knowledge.
Labour Court Representation
Registration with the Social Security Office, calculation of employer and employee contributions under the new 2026 wage ceilings (THB 17,500 cap), withholding tax obligations, and preparation for the Employee Welfare Fund launching in October 2026.
Social Security & Payroll Compliance
Registration with the Social Security Office, calculation of employer and employee contributions under the new 2026 wage ceilings (THB 17,500 cap), withholding tax obligations, and preparation for the Employee Welfare Fund launching in October 2026.
Workplace Safety & OHS
Compliance with the Occupational Safety and Health Act B.E. 2554, including risk assessments, safety committees, incident reporting, and workers’ compensation claims. Particularly relevant for construction, hospitality, and manufacturing operations on the islands.
Non-Compete & Trade Secret Protection
Drafting enforceable restrictive covenants that Thai courts will uphold under the Unfair Contract Terms Act. We structure non-compete clauses with reasonable geographic, temporal, and activity limitations, plus confidentiality agreements aligned with the Trade Secrets Act B.E. 2545.
Redundancy & Restructuring
When technology changes, market shifts, or business reorganisation require workforce reduction, we manage the 60-day notice to the Labour Inspector, calculate standard and special severance pay, and structure separation packages to minimise legal exposure.
Maternity, Paternity & Leave Management
Implementation of the December 2025 LPA No. 9 amendments: 120-day maternity leave with 60 days employer-paid, 15 days paid paternity leave, infant-care leave for newborn complications, and preparation for proposed menstrual leave and family-care leave entitlements.
Employee Classification
Thai authorities are protective of employee status and frequently reclassify independent contractor arrangements as “hidden employment.” We advise on the distinction between hire-of-service and hire-of-work contracts, ensuring your engagement structures withstand scrutiny.
Dispute Mediation & Settlement
Many labour disputes are better resolved outside court. We negotiate separation agreements, settlement payments, and mutual termination terms that protect your business while providing employees with fair outcomes, always ensuring statutory minimums are respected.
Key Employee Entitlements
The Labour Protection Act establishes mandatory minimum standards that cannot be contracted out of, even with employee consent. These are the core entitlements every employer must provide.
Working Hours
8 hours/day, 48 hours/week for regular work. 7 hours/day, 42 hours/week for hazardous work. One hour rest after every five consecutive hours. Overtime requires employee consent and pays 1.5x on regular days, 3x on holidays.
Minimum Wage
Koh Samui has the highest minimum wage tier at THB 400/day (from 1 January 2025). Hotels and entertainment venues nationwide are also subject to this rate from 1 July 2025. Violation: up to 6 months imprisonment or THB 100,000 fine.
Paid Leave
6 days annual leave (after 1 year of service), 30 days paid sick leave, 13 public holidays, 3 days paid personal leave, 120 days maternity leave (60 days employer-paid), 15 days paid paternity leave, and training leave.
Social Security
Both parties contribute 5% of wages. From January 2026, the wage ceiling rose from THB 15,000 to THB 17,500/month (max THB 875 each). Covers healthcare, maternity, disability, death, unemployment, and retirement pension.
Statutory Severance Pay Rates
Severance pay is mandatory for all terminations without statutory cause (Section 119 exceptions). These are minimum rates based on the employee's most recent wage and length of continuous service.
| Length of Service | Severance Pay | Practical Example (THB 30,000/month) |
|---|---|---|
| 120 days to less than 1 year | 30 days' wages | THB 30,000 |
| 1 year to less than 3 years | 90 days' wages | THB 90,000 |
| 3 years to less than 6 years | 180 days' wages | THB 180,000 |
| 6 years to less than 10 years | 240 days' wages | THB 240,000 |
| 10 years to less than 20 years | 300 days' wages | THB 300,000 |
| 20 years or more | 400 days' wages | THB 400,000 |
In addition to severance pay, the employer must provide advance notice of one full pay cycle (or payment in lieu of notice). If the Labour Court finds the dismissal was without justifiable grounds, it may order additional unfair dismissal compensation or reinstatement. Default interest on unpaid severance accrues at 15% per annum. Employees dismissed for cause under Section 119 (dishonesty, criminal offence, gross negligence, work-rule violation after written warning, three consecutive days' absence without cause, or imprisonment by final court judgment) are not entitled to severance pay.
Penalties & Compliance Risks
Thailand's labour enforcement framework imposes significant penalties on non-compliant employers, with the Labour Court having broad remedial powers including reinstatement orders.
Wrongful Dismissal
If the Labour Court finds a dismissal was unfair, it may order reinstatement at the same wage level or award compensation based on employee age, service length, hardship, and the circumstances of the dismissal. There is no statutory cap on unfair dismissal awards.
Minimum Wage Violations
Paying below the statutory minimum wage exposes the employer to imprisonment of up to six months, a fine of up to THB 100,000, or both. On Koh Samui, the applicable rate is THB 400/day for all businesses.
Employee Misclassification
Treating employees as independent contractors to avoid social security, overtime, and leave obligations can result in fines of up to THB 20,000, imprisonment of up to six months, back-payment of all missed benefits, and potential personal liability for directors.
Social Security Non-Compliance
Failure to register employees with the Social Security Office or to remit contributions on time triggers penalties of 2% per month on outstanding amounts. Employer contributions are not recoverable from employees even if erroneously missed.
Overtime & Working Hour Breaches
Requiring employees to work overtime without consent, exceeding statutory hour limits, or failing to pay overtime at the correct multiplier (1.5x weekdays, 3x holidays) subjects the employer to fines of THB 5,000 to THB 200,000 and up to one year's imprisonment.
Late Payment of Severance
Severance pay is due on the date of termination. Late payment accrues default interest at 15% per annum, significantly higher than the standard commercial rate of 7.5%. The same rate applies to unpaid wages, overtime, and holiday pay.
No Written Work Rules
Employers with ten or more employees who fail to establish written work rules, or who do not communicate updates within 15 days, face fines up to THB 20,000. From December 2025, annual reporting to the Labour Department is also mandatory.
Confiscation of Work Permits
An employer who confiscates a foreign employee's work permit or identification documents faces imprisonment of up to six months, a fine of up to THB 100,000, or both. This prohibition is strictly enforced regardless of contractual arrangements.
Our Employment Law Process
A structured approach to bringing your workplace into full compliance with Thai labour law, from initial audit through to ongoing advisory support.
HR Compliance Audit
We review your existing employment contracts, work rules, payroll records, social security registrations, and leave policies against current Labour Protection Act requirements and the December 2025 amendments.
Gap Analysis & Risk Assessment
We identify areas of non-compliance, calculate potential exposure (back-pay, penalties, unfair dismissal risk), and prioritise remediation based on likelihood and severity of enforcement action.
Document Drafting
We prepare or revise employment contracts, work rules, employee handbooks, confidentiality agreements, and separation templates, all in bilingual Thai-English format with Thai text as the controlling version.
Implementation & Training
We help you roll out new policies, communicate changes to staff within the 15-day statutory window, update payroll systems for new social security ceilings, and train managers on compliant disciplinary procedures.
Ongoing Advisory
Retained support for day-to-day employment questions, termination consultations, Labour Court representation, annual compliance reporting, and monitoring of legislative changes that affect your operations.
Labour Law FAQ
The fifteen most common employment law questions we receive from foreign employers operating on the islands, ranked by frequency.
Are non-compete clauses enforceable in Thailand?
Only if deemed 'reasonable.' Courts check if the restriction is necessary, limited in geography/activity, and proportionate in duration. Overly broad clauses that prevent an employee from earning a living are often struck down.
Can employees waive their statutory rights?
No. The LPA is public policy; any contract clause reducing benefits below the legal minimum is void. However, post-termination settlement agreements (negotiated after the job ends) are generally enforceable if properly documented.
Can I require employees to work overtime?
Generally no; it requires employee consent except in emergencies or continuous-work scenarios. Overtime pay is 1.5x for regular days, 2x for the first 8 hours on holidays, and 3x for holiday overtime hours.
Do I need work rules if I have fewer than ten employees?
Legally required only for 10+ employees. However, we recommend them for all headcounts. Written rules provide the necessary legal foundation for disciplinary action and help justify cause-based terminations in court.
Do I need written employment contracts?
Strongly recommended. While oral agreements are valid, the Labour Court tends to favor the employee in disputes without a written contract. We advise bilingual contracts with Thai as the controlling language for court purposes.
Does Thai labour law apply to foreign-owned companies?
Yes, absolutely. The Labour Protection Act (LPA) applies to every employer in Thailand regardless of nationality. This includes requirements for minimum wage, working hours, leave, severance, and social security for both Thai and foreign staff.
How do I legally terminate an employee in Thailand?
Requires written notice at least one full pay cycle in advance (or payment in lieu). You must pay severance (30–400 days' wages based on tenure) and unused leave. Cause-based dismissal (Section 119) avoids severance but must be strictly documented.
How does fixed-term employment work in Thailand?
Permitted only for specific projects, seasonal work, or work with a clear end date (<2 years). If work continues past expiry, it becomes an indefinite-term contract. You cannot use these to bypass permanent employment rights.
What are the new maternity and paternity leave rules?
Effective Dec 2025, maternity leave increased to 120 days (60 days at full pay from employer). A new 15-day paid paternity leave was introduced for spouses to support childbirth, plus an extra 15 days at half-pay for medical complications.
What are the social security contribution requirements?
Both employer and employee contribute 5%. As of Jan 2026, the wage ceiling rose to THB 17,500 (max THB 875/month). The ceiling is scheduled to rise again to THB 20,000 in 2029 and THB 23,000 in 2032.
What happens if an employee files a Labour Court complaint?
The court first attempts mediation. If it fails, the case goes to trial. Filing is free for employees. If a dismissal is found unfair, the court can order reinstatement or award compensation based on tenure and hardship.
What is the Employee Welfare Fund (launching 2026)?
Postponed to Oct 1, 2026. Mandatory for 10+ employees. Employers and employees each contribute 0.25% of wages (rising to 0.5% in 2031). This adds a new layer of payroll cost alongside social security.
What is the minimum wage on Koh Samui?
As of 2025/2026, Koh Samui (Surat Thani) is in the highest tier at THB 400 per day. Additionally, specific minimum monthly salary requirements apply to foreign employees based on their nationality (typically THB 25,000–50,000).
What is the probationary period under Thai law?
Not formally regulated, but severance becomes mandatory after 120 days. Therefore, 119-day probations are standard. While no severance is due if terminated within this window, the employee still holds all other statutory rights from day one.
What labour law changes are coming next?
Bills in progress for 2026 propose reducing work weeks from 48 to 40 hours, increasing annual leave to 10 days, and introducing new leave categories like menstrual leave and family-care leave (15 days/year).