Social Security Calculator
The Social Security Calculator estimates an income, tax or statutory-cost estimate for the figures entered from the income, employment or business status, relevant period, allowances and current thresholds shown on the page. Replace the example values with your own social security figures and recalculate after changing an assumption. Treat it as a planning estimate and independently verify the current rule or provider terms.
Select Section and fill in wages to see the contributions of the self-insured and employer separately from income tax and check the base wage ceiling used in the year 2026
Know the results in less than 30 seconds.
Data is not saved. and is used for calculation only.
Update the annual rate 2026 according to the Social Security Office (SSO)
Calculates monthly and annual social security contributions showing the shares paid by employees, employers and the government.
sso decision path
Social security must be linked to net wages and taxes.
SSO contributions affect actual earnings and payroll costs, so they should be considered in conjunction with tax deductions at source, not just contributions alone.
Quick answers that people often search for.
Do it all before you decide.
Minimum wage base 1,650 baht Maximum wage base 17,500 baht Contribution rate 5%
Section 39: Paying the monthly allowance of 432 baht.
For those who were employed Section 33 and then quit
Contribution Details (per month)
Yearly Summary
Continue: Calculating Net Salary
Look at the salary after social security and tax, where paid.
How to calculate social security.
Social security is a system that protects the insurance policy in 7 cases: disease, birth defects, child mortality, child support, old age and unemployment, with 3 major articles: Article 33, 39, and 40.
Comparison of Social Security Section 33 vs 39 vs 40
| list | Section 33 | Section 39 | Section 40 |
|---|---|---|---|
| The rightful. | Employees with employers. | Former insured, M.33. | Freelancers. |
| Monthly contribution | 5% of salary. (Max 875 baht) | 432 baht (fixed) | 70 / 100 / 300 baht |
| Employer co-payment. | ✓ 5% | ✗ | ✗ |
| Number of benefits | 7 case | 6 case | 3-5 case |
| Sick. | ✓ | ✓ | ✓ |
| Give birth. | ✓ | ✓ | ✗ |
| Disabled | ✓ | ✓ | ✓ |
| Dead. | ✓ | ✓ | ✓ |
| Old age. | ✓ | ✓ | Optional 2, 3 |
| The child. | ✓ | ✓ | Optional 3 |
| Jobless. | ✓ | ✗ | ✗ |
Source: Social Security Office (sso. go. th) Update 2026
Section 33 — Employee with employer
The Section 33 self-insured person is an employee who works in an enterprise with 1 or more employees, and pays a contribution of 5% of the wages, calculated from the minimum wage of 1,650 baht to the maximum wage of 17,500 baht.
Formula: Contribution = Salary × 5% (minimum 83 baht maximum 875 baht)
Example: Salary 25,000 baht → Use base 17,500 × 5% = subtract 875 baht (over ceiling)
| Payer. | Contribution Rate | Max/ Month |
|---|---|---|
| Employee. | 5% | 875 baht |
| Employer. | 5% | 875 baht |
| Government. | 2.75% | 481.25 baht |
Section 39 — Voluntary Self-Insured
Those who have been employed under Section 33 for at least 12 months and have been unemployed for less than 6 months can apply for Section 39 self-insured benefits, which pay 432 baht per month, with the government contributing 120 baht.
Section 40 — Self-employed
Self-employed persons aged 15-65 years can apply as self-insured persons Section 40 optional payment 3 Options:
| Options | Monthly contribution | Perks. |
|---|---|---|
| 1 option | 70 baht | Sick, disabled, dead. |
| 2 option | 100 baht | Illness, disability, death, old age. |
| 3 option | 300 baht | Illness, disability, death, old age, childhood. |
Calculation example
Example 1: Salary 25,000 baht (Section 33)
- Wages above the ceiling 17,500 baht → calculated from 17,500 baht
- Employees: 17,500 × 5% = 875 baht/month
- Employer: 17,500 × 5% = 875 baht/month
- Government: 17,500 × 2.75% = 481.25 baht/month
Example 2: Salary 10,000 baht (Section 33)
- Wages not exceeding the ceiling → calculated from 10,000 baht
- Employees: 10,000 × 5% = 500 baht/month
- Employer: 10,000 × 5% = 500 baht/month
- Government: 10,000 × 2.75% = 275 baht/month
Example 3: Salary 1,000 baht (Section 33)
- Lower than minimum wage 1,650 baht → Calculated from 1,650 baht
- Employees: 1,650 × 5% = 82.50 → 83 baht/month
- Employer: 1,650 × 5% = 82.50 → 83 baht/month
- Government: 1,650 × 2.75% = 45.38 baht/month
Formula used for calculation
Employee Social Security = calculated monthly earnings × 5% (Maximum 875 baht/month)
Base salary for calculation: Salary values from 1,650 to 17,500 baht (if the salary is lower than 1,650, it is calculated from 1,650 instead) Employees must pay social security contributions 5% of the salary (maximum per month 875 baht) Employers must pay 5% as well
Calculation example
Example 1: Salary 10,000 baht
- Salary calculated. = 10,000 baht
- Employee social security. = 10,000 × 5% = 500 baht/month
- Employer's Social Security. = 10,000 × 5% = 500 baht/month
- Total contributions = 1,000 baht/month (500 + 500)
Example 2: Salary 20,000 baht (calculated from the maximum point 17,500)
- Salary calculated. = 17,500 baht (use maximum)
- Employee social security. = 17,500 × 5% = 875 baht/month (Maximum)
- Employer's Social Security. = 17,500 × 5% = 875 baht/month
- Employees + employers. = 1,750 baht/month
- If you include the government, 2.75%. = 2,231.25 baht/month
summarize
Social security is the primary right of employees. This benefit is saved for retirement, injury or disability. This benefit is also one of the tax deductions for the whole year.
refer: Social Security Office: Social Security contribution rates [Update 2026]
Verified and updated by Kamnuanlek team | Last updated: 6 June 2026
Frequently asked questions
How much is Section 33 Social Security?
How much does Section 39 pay?
How many options do you have for Section 40 social security?
What's the difference between Section 33, 39, 40?
How much does a Section 33 insured pay per month?
What does Section 33 cover?
How many years of continuous social security to get a pension?
What about social security?
Learn more from our article.
English calculator guide
How to use the Social Security Calculator
Use this page to test a specific social security scenario. Enter your own values in the calculator above, review the units beside each field, and recalculate after changing an assumption. The result updates the social security estimate instead of relying on a generic example.
- Build a baseline social security case with figures that match your situation.
- Run a second social security case after changing the rate, period, quantity or other key assumption.
- Record the difference between the two social security results and the input responsible for it.
Inputs for the social security estimate
For this social security calculation, check the income, employment or business status, relevant period, allowances and current thresholds shown on the page. The result is designed to show an income, tax or statutory-cost estimate for the figures entered, not a guaranteed provider price or official decision.
How the social security result is calculated
The calculator applies the displayed pay period, rate, deduction and statutory assumptions to the employment figures entered. Reusing the same social security inputs will produce the same estimate, which makes the page suitable for controlled scenario comparisons.
Checks for a social security decision
Check the effective date and confirm current rules with the relevant Thai authority or a qualified adviser. For social security, Use the result to reconcile a payslip or plan take-home pay. Employer payroll rules, benefits, withholding and statutory contributions can change the final amount. Because this calculation can affect an important financial, legal or health decision, independently verify the inputs and current rules before relying on the result.
- Language QA
- Terminology, numeric values and calculator controls checked
- Calculator scope
- Payroll and employment
- Last English review
- 26 July 2026
The answer Google should see.
Social Security Year 33 Year 2026: Base 1,650-17,500 baht Maximum 875 baht/month
If the salary exceeds 17,500 baht, the system also uses the base 17,500 baht in the calculation of the 33, so deduct the maximum employee 875 baht and the employer maximum contribution 875 baht per month.