TL;DR: Payroll in Thailand means managing progressive taxes (0-35%), social security (5% each, capped at THB 875/month in 2026), and strict filing deadlines every month.
Thailand ranks 35th on the Global Payroll Complexity Index. That is not a ranking any employer wants to top. For companies expanding into Southeast Asia, getting payroll right in Thailand is one of the most important operational tasks you will face.
A Deloitte global payroll survey found that 73% of organizations outsource at least part of their payroll. The reason is simple. Payroll errors lead to penalties, employee distrust, and legal trouble. In Thailand, the stakes are even higher. You deal with monthly tax filings, social security submissions, and a minimum wage that varies by province.
We have helped over 200 companies set up compliant teams across 9 Asian markets. Thailand is one of the most requested. The payroll rules are clear once you understand them. But small mistakes can cost you. This guide covers every step of the payroll process in Thailand. We include the 2026 social security cap changes, updated minimum wage rates, and the exact deadlines you need to meet.
Payroll in Thailand at a Glance
Before we go deeper, here is a quick overview of the main payroll components every employer should know.
| Component | Details | Employer Responsibility |
|---|---|---|
| Minimum Wage | THB 337-400/day (varies by province) | Must meet provincial rate |
| Pay Frequency | Monthly (most common) | Pay within agreed date |
| Personal Income Tax | Progressive: 0-35% | Withhold and file PND 1 monthly |
| Social Security (Employee) | 5% of salary, capped THB 875/month | Deduct from salary |
| Social Security (Employer) | 5% of salary, capped THB 875/month | Match and submit by 15th |
| Overtime | 1.5x normal rate (3x on holidays) | Track hours and calculate |
| Severance Pay | 30-400 days pay (based on tenure) | Pay on termination |
| Provident Fund | Optional (2-15% each side) | Manage if offered |
Quick Quiz: Test Your Thailand Payroll Knowledge
What is the maximum monthly social security contribution per side in Thailand for 2026?
Understanding the Legal Framework
Payroll in Thailand is governed by three main laws. The Labour Protection Act covers wages, working hours, overtime, and severance. The Revenue Code handles personal income tax. The Social Security Act defines contribution obligations.
For a more detailed breakdown, refer to this labor and employment laws in Thailand guide by payroll experts at Yomly.
The Revenue Department and Social Security Office (SSO) are the two agencies employers interact with most. You file taxes with the Revenue Department. You submit social security contributions to the SSO. Missing deadlines with either agency leads to fines and interest charges.
For companies hiring developers in Thailand, understanding these rules is not optional. Every payroll cycle requires accurate calculations across multiple components.
Minimum Wage Rates Across Thailand (2026)
Thailand sets minimum wage by province. This is different from most countries that have one national rate. The daily minimum ranges from THB 337 to THB 400 depending on the location.
Bangkok, Phuket, Chonburi, Rayong, and Koh Samui sit at the highest rate of THB 400 per day. These are the main business and tourism hubs. Most northeastern and southern provinces fall in the THB 337-370 range.
There is an important exception. Hotels classified under Types 2, 3, and 4 of the Hotel Act must pay THB 400 per day. This applies regardless of province. A hotel in Chiang Mai with a general provincial rate of THB 370 still must pay THB 400.
For a standard 26-day work month, the monthly minimum ranges from about THB 8,762 to THB 10,400. Keep this in mind when structuring compensation for your Thai team.
| Province/Region | Daily Rate (THB) | Monthly Estimate (26 days) |
|---|---|---|
| Bangkok & surrounding provinces | 400 | 10,400 |
| Phuket, Chonburi, Rayong | 400 | 10,400 |
| Chiang Mai, Khon Kaen | 370 | 9,620 |
| Nakhon Ratchasima | 365 | 9,490 |
| Udon Thani, Surin | 350 | 9,100 |
| Narathiwat, Pattani | 337 | 8,762 |
Key Components of Thailand Payroll
Basic Salary
The basic salary is the fixed amount in the employment contract. It forms the base for all calculations. Tax, social security, and overtime all reference this number. Make sure it meets the provincial minimum wage for your office location.
Allowances and Benefits
Many Thai employers offer housing, transportation, or meal allowances. These increase total compensation but have different tax treatments. Some allowances are taxable. Others are not. Structure them carefully with your accountant to avoid surprises during tax season.
Overtime Pay
Thai labor law is strict about overtime. Employees working beyond standard hours get at least 1.5x their normal hourly rate. Work on public holidays pays up to 3x. You must track working hours accurately. The Labour Protection Act sets the standard workweek at 48 hours maximum.
Bonuses and Incentives
Annual bonuses are common in Thailand. Many companies offer 1-2 months of salary as a year-end bonus. These payments are fully taxable. Include them in your payroll calculations and tax withholding. Plan ahead so deductions are handled smoothly.
Personal Income Tax in Thailand
Thailand uses a progressive tax system. Rates range from 0% to 35%. The first THB 150,000 of annual net income is tax-exempt. After that, rates increase in bands.
As an employer, you must withhold the correct amount from each employee’s salary every month. You file this using the PND 1 form. The deadline is the 7th of the following month. If you file electronically, you get until the 15th.
According to PwC’s Thailand tax summary, the brackets have remained stable for several years. But starting 2027, Thailand plans to cap certain income tax deductions. This means employers should prepare for possible changes in withholding amounts.
| Annual Net Income (THB) | Tax Rate | Tax Amount (THB) |
|---|---|---|
| 0 – 150,000 | Exempt | 0 |
| 150,001 – 300,000 | 5% | 7,500 |
| 300,001 – 500,000 | 10% | 20,000 |
| 500,001 – 750,000 | 15% | 37,500 |
| 750,001 – 1,000,000 | 20% | 50,000 |
| 1,000,001 – 2,000,000 | 25% | 250,000 |
| 2,000,001 – 5,000,000 | 30% | 900,000 |
| Over 5,000,000 | 35% | Varies |
Social Security Contributions: The 2026 Changes
This is the biggest payroll change for 2026. Thailand’s Social Security Office raised the salary ceiling for contributions. The old cap was THB 15,000 per month. Starting January 2026, it increased to THB 17,500.
The contribution rate stays at 5% for both employer and employee. But the maximum monthly contribution rose from THB 750 to THB 875 per side. That is THB 1,750 total per employee per month.
This change was published in the Royal Gazette on December 12, 2025. It is part of a three-phase rollout.
| Phase | Period | Salary Ceiling (THB) | Max Contribution (THB/month) |
|---|---|---|---|
| Phase 1 | 2026-2028 | 17,500 | 875 |
| Phase 2 | 2029-2031 | 20,000 | 1,000 |
| Phase 3 | 2032 onwards | 23,000 | 1,150 |
Social security covers seven benefits. These include healthcare, disability, death, child allowance, old age pension, unemployment, and maternity. Employers must submit contributions by the 15th of the following month.
We worked with a SaaS company expanding from Singapore to Bangkok. They had 12 engineers. The SSO cap change added about THB 1,500 per month to their total payroll cost. It was not a huge number. But they needed to update their payroll system before January. Planning ahead saved them from filing errors.
Step-by-Step Payroll Process
Step 1: Collect Employee Information
Start with accurate data. You need each employee’s tax ID, national ID or passport, bank account details, and employment terms. For foreign employees, you also need their work permit number. Keep this data updated. Changes in marital status or dependents affect tax calculations.
Step 2: Track Attendance and Working Hours
Attendance drives payroll accuracy. Track working days, leaves, overtime hours, and absences. Many companies in Thailand use biometric systems or HR software for this. Manual tracking works for small teams. But it breaks down quickly as you grow.
Step 3: Calculate Gross Salary
Gross salary includes base pay, allowances, overtime, and any bonuses for that month. Add everything before deductions. This number is the starting point for tax and social security calculations.
Step 4: Apply Deductions
Calculate personal income tax based on the progressive brackets. Deduct social security at 5% of salary (capped at THB 875). If the employee participates in a provident fund, deduct that too. Double-check every number. Errors here affect both the employee and your compliance status.
Step 5: Process Salary Payments
Transfer the net salary to each employee’s bank account. Most Thai companies use bank transfers. Cash payments are rare for formal employment. Make sure payments happen on the agreed date. Late payments violate the Labour Protection Act.
Step 6: Generate Payslips
Give every employee a payslip showing gross salary, each deduction, and net pay. This is good practice and builds trust. Clear payslips reduce questions from employees every month.
Step 7: File Taxes and Submit Contributions
File PND 1 (monthly income tax) by the 7th of the following month. Submit SSO contributions by the 15th. File the annual PND 1 Kor at year end. Missing any of these deadlines results in fines and interest.
Compliance Deadlines You Cannot Miss
Thailand has strict deadlines for payroll-related filings. Here is the schedule every employer should follow.
| Filing | Deadline | Penalty for Late Filing |
|---|---|---|
| PND 1 (Monthly Income Tax) | 7th of following month | 1.5% interest per month + fines |
| PND 1 (E-filing) | 15th of following month | 1.5% interest per month + fines |
| SSO Contributions | 15th of following month | 2% surcharge per month |
| PND 1 Kor (Annual) | End of February | Fines up to THB 2,000 |
| Workmen’s Compensation Fund | Annual | Varies by industry |
Hiring Foreign Employees: Extra Payroll Rules
If you hire non-Thai nationals, additional payroll rules apply. Foreign employees need work permits. They also face minimum salary requirements that vary by nationality.
Workers from the US, Canada, and Japan must earn at least THB 60,000 per month. European and Australian nationals need at least THB 50,000. ASEAN nationals have lower thresholds between THB 25,000-45,000 depending on country.
There is also a capital requirement. Your company needs at least THB 2 million of fully paid-up capital per foreign employee. You must maintain a ratio of four Thai employees for every one foreign worker. These rules affect your payroll planning and hiring strategy.
Common Payroll Challenges
Keeping Up with Regulation Changes
Thailand updates its labor and tax rules regularly. The 2026 SSO cap change is one example. Income tax deduction reforms are planned for 2027. Employers must monitor these changes and update their systems accordingly.
Manual Processing Errors
Spreadsheet-based payroll works for 5-10 employees. Beyond that, errors multiply. A mistyped tax bracket or wrong SSO cap can affect every employee. We have seen companies receive penalty notices because one formula was wrong in their Excel sheet.
Managing Multiple Compensation Structures
As your team grows, you will have different salary levels, allowance structures, and benefit packages. Managing all of this manually becomes unsustainable. Standardized payroll processes and tools become essential.
Data Accuracy
Payroll depends on clean data. Outdated bank accounts, wrong tax IDs, or missing work permits cause payment failures and compliance issues. Assign someone to audit employee records quarterly.
Why Companies Are Moving to Payroll Software and Outsourcing
The payroll outsourcing market is projected to reach $16.87 billion by 2030. Cross-border hiring and complex tax rules are the main drivers. In Thailand specifically, the multiple filing requirements (PND 1, SSO, Workmen’s Compensation Fund) make automation valuable.
Companies can explore payroll software in Thailand to simplify these processes. Automated systems calculate taxes accurately, track deadlines, and generate compliant reports. They also reduce dependency on spreadsheets and manual calculations.
For companies hiring remote teams across Asia, a structured approach matters even more. At Second Talent, we handle payroll compliance through our EOR service. This means you do not need to set up a legal entity in Thailand to hire Thai developers, AI engineers, or full-stack developers.
What This Means for Your Business
Payroll in Thailand is not complicated once you understand the rules. But it demands accuracy and consistency every single month. The 2026 SSO cap increase, provincial minimum wages, and progressive tax brackets all need to be calculated correctly.
The cost of getting it wrong is real. Penalties, interest charges, and employee dissatisfaction add up fast. The cost of getting it right is a compliant, trusted operation that can scale.
Whether you manage payroll in-house, use software, or outsource to an EOR provider, the fundamentals stay the same. Collect accurate data. Calculate correctly. File on time. Pay your people.
If you are building a team in Thailand or across Southeast Asia, talk to us about your hiring needs. We handle compliance so you can focus on building your product.
