Calculations are made according to the personal income tax rate 0-35% and social security Section 33 maximum 875 baht/month
Suitable for HR employers and employees who want to negotiate net salary
Gross-up Salary Calculator
The Gross-up Salary 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 gross up salary figures and recalculate after changing an assumption. Treat it as a planning estimate and independently verify the current rule or provider terms.
Enter the desired Net salary and additional options. The system will calculate the Gross salary before tax and social security deductions.
Gross-up Calculations
Gross salary required.
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Net
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Total deductions
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Gross salary.-
Social Security (5% maximum 875 baht)-
Income tax deduction at source (per month)-
net salary-
⚠️ IMPORTANT: Notes on the calculation
• This calculation is an estimate for preliminary planning purposes. Actual figures may vary due to personal deductions and other incomes.
• System of calculation according to the rate of personal income tax year 2026 and social security Section 33
• If there is an additional special deduction (life insurance SSF/RMF child) the results may change
• For accurate payroll planning, consult a tax or accounting expert
Gross-up Calculation
Cost deduction = Gross × 12 × 50% but not more than 100,000 baht/year
Personal discount = 60,000 baht/year + other specified discounts
Salary and wages are calculated from the data entered, used for planning and preliminary checks before comparing with slips or documents from the employer.
Use tax base, social security, and standard terms of the tool.
Excluding benefits or company-specific agreements.
In case of dispute, check the employment documents and the latest labor laws.
Gross-up is a calculation of the Gross salary that should be received to leave the Net money that is needed after deducting income tax and social security contributions.
Why do you calculate gross-up?
Used when the employer wants the employee to receive net pay as agreed, or when the employee wants to know how much Gross pay to ask for to get Net pay as desired.
What is the gross-up method?
Use iteration because the tax is calculated from Gross, which is the variable to be found. The system will adjust Gross little by little until Net is the desired value within 0.01 baht
What do you think, SSC Section 33?
Social Security Section 33 calculates 5% of the wage base by the minimum base 1,650 baht and the maximum 17,500 baht so the maximum contribution is 875 baht/month in the year 2026
What is the minimum wage for the year 2026?
The minimum wage in 2025-2026 in Bangkok and surrounding areas is 370-400 baht/day, in the provinces is 330-370 baht/day depending on the province. Check the latest rate from the Ministry of Labour mol. go. th
What is the net salary calculated from?
Net salary = Total salary - Tax deducted at place of payment - Social security contributions (5% maximum 875 baht) - Subsistence reserve fund (if any) Employer pays additional social security to the other party 5%
How does OT count?
Regular days: 1.5 times the normal hourly wage | Holidays: 2 times (regular hours) and 3 times (overtime) | Under the Labour Protection Act 1998
What's the benefit of a life insurance fund?
Long-term savings that employers contribute (1-15% of wages) + maximum tax deduction 15% of income or 500,000 baht + return on investment withdrawable when leaving work or retirement
Disclaimer: The results are estimates for preliminary planning. Actual figures may vary due to personal deductions and other income. Consult a tax expert for accurate planning.
English calculator guide
How to use the Gross-up Salary Calculator
Use this page to test a specific gross up salary 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 gross-up salary estimate instead of relying on a generic example.
Build a baseline gross up salary case with figures that match your situation.
Run a second gross up salary case after changing the rate, period, quantity or other key assumption.
Record the difference between the two gross up salary results and the input responsible for it.
Inputs for the gross up salary estimate
For this gross up salary 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 gross up salary result is calculated
The calculator applies the displayed pay period, rate, deduction and statutory assumptions to the employment figures entered. Reusing the same gross up salary inputs will produce the same estimate, which makes the page suitable for controlled scenario comparisons.
Checks for a gross up salary decision
Check the effective date and confirm current rules with the relevant Thai authority or a qualified adviser. For gross up salary, 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.
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Terminology, numeric values and calculator controls checked
Review formula structure, test cases, data sources, effective dates, and risk language accordingly.How to check our · There is no claim that an outside professional reviewed it. Unless the page directly states the name and qualifications. This content is therefore not individual advice.
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