Categories
Money & tax
Tools for Thai income and tax: personal income tax, take-home pay after every deduction, social security contributions, and the severance an employer owes when a contract ends. Every rate is checked against the Revenue Department, the Social Security Office and the Labour Protection Act directly.
43 tools in this category
Thai Bonus Withholding Tax Calculator
Calculate the withholding tax in the month you receive a bonus using the Revenue Department method, from your salary, bonus and the allowances notified to your employer, plus the bonus left after tax.
Business Break-even Calculator
Find the minimum whole units needed to cover fixed costs, variable unit costs and selling fees. Compare the result with your planned sales volume.
Compound Interest Calculator
Project the future value of your savings with compound interest, from a starting sum plus a regular monthly contribution, with a year-by-year breakdown.
Savings Cooperative Dividend and Patronage Refund Calculator
Estimate the dividend on cooperative shares held all year plus monthly share purchases weighted by months held, and the patronage refund on loan interest paid to the cooperative.
Thailand Corporate Income Tax Calculator
Calculate Thai corporate income tax on net profit, check whether your company qualifies for the reduced SME rates, and see why the 10% figure still quoted online expired after the 2016 accounting period.
Monthly DCA Investment Calculator
See how a portfolio could grow with the same investment every month, including a starting lump sum, purchase fees and yearly increases, with a year-by-year table.
Thailand Deposit Interest Calculator
Interest on Thai savings and fixed deposit accounts with the 15% withholding tax applied automatically, so you see what actually reaches your account.
Thai Dividend Tax Credit Calculator
Work out the dividend tax credit under section 47 bis and compare including dividends in your annual return with keeping the 10% withholding as final tax, to see which refunds more or costs less.
Thai Donation Tax Deduction Calculator
Work out Thai donation deductions under Revenue Department rules, both items deductible at 2× and general donations capped at 10% of income after expenses and other allowances, and the tax saved.
Emergency Fund Calculator
Estimate an emergency reserve from essential monthly expenses and your chosen coverage period. See the target, shortfall and months currently covered.
Thai Employer Cost per Employee Calculator
Add up an employer's yearly cost for one employee: salary, bonus, employer social security, Workmen's Compensation Fund contributions, provident fund matching, benefits and allowances.
Freelance Rate Calculator
Set an hourly and daily freelance rate from your target income, business costs, insurance and savings, a tax reserve and realistic billable hours, and see cash received after 3% withholding tax.
Thailand Gift Tax Calculator
Calculate Thai income tax on gifts of money or movable property from parents, children, a spouse or others by custom, and on real estate transferred by parents to their children, counting earlier gifts in the same tax year.
Thai Gold Price by Weight Calculator
Convert Thai gold weight between baht, salung and grams, then work out the purchase price with making charges, the resale value and the round-trip loss for 96.5% bars or ornaments using your shop's quoted prices.
Thailand Half-Year Personal Income Tax (PND 94)
Work out the Thai half-year tax return for rental, freelance, contracting and business income earned January to June — including the rule most people miss, that allowances are halved.
Thailand Personal Income Tax Calculator
Work out Thai personal income tax on salary and bonus — expenses and deductions applied automatically, tax shown bracket by bracket. Free, no sign-up.
Inflation and Purchasing Power Calculator
See how much today's price may rise in future, or what a future sum is worth today, at an average inflation rate, plus the real return after inflation.
Thailand Inheritance Tax Calculator
Calculate Thai inheritance tax under the Inheritance Tax Act 2015 from the property received from one deceased, less inherited debts, on the part above THB 100 million at the rate for your relationship.
Thai Job Offer Comparison Calculator
Compare two job offers over a year, including salary, bonus, social security, income tax, employer provident fund match, benefits and commuting, to see which gives more net value.
Thailand Late Tax Filing Calculator
Filed your Thai tax return late? Work out the 1.5% monthly surcharge and its legal cap under Section 27, straight from Revenue Department sources.
Online Marketplace Fee and Payout Calculator
Work out commission, payment and service fees plus VAT on those fees to see the actual payout, profit per order and margin, using the rates your platform gives your shop.
Thailand Maternity Leave and Pay Calculator
Work out what you receive during Thai maternity leave under the new 120-day law — employer wages plus the two social security payments — and the 15 days of paid spousal leave granted for the first time.
Thailand Net Salary Calculator
Your real take-home pay in Thailand after income tax, social security and provident fund — see exactly what lands in your account each month. Free.
Thailand Online Seller Tax Calculator
How much tax an online seller in Thailand owes: 60% flat expenses, the 0.5%-of-sales method compared automatically, and the 1.8M baht VAT threshold.
Thailand Overtime Pay Calculator
Overtime under Thai labour law: 1.5x on a working day, holiday pay, and 3x for overtime on a holiday. Covers monthly and daily paid staff.
Thailand Social Security Pension Calculator
The monthly old-age pension from Thai social security, from months contributed and average wage, compared against the lump sum paid under 180 months.
Product Profit Margin Calculator
Include product cost, packaging, seller-paid shipping and sales fees. See per-item profit, margin, markup and total contribution before fixed costs.
Thai Provident Fund Calculator
Project a Thai provident fund balance from 2–15% employee savings, employer contributions, returns and pay rises, with the amount after the employer vesting share on leaving and the first-year tax saving.
Thai Rental Income Tax Calculator
Work out the extra personal income tax from 40(5) rental income, with the flat expense rate for each asset type, other income and allowances, less the 5% withheld by a company tenant.
Retirement Savings Calculator
Estimate the lump sum needed at retirement from today's monthly spending, inflation and returns before and after retirement, then find the extra saving needed each month.
Savings Goal Calculator
Turn a savings target into a monthly plan. Account for money already saved and see the remaining gap, progress and planned final balance.
Target-Margin Selling Price Calculator with Thai VAT
Find a unit selling price from cost, target margin and selling fees, then add 7% VAT if the shop is VAT-registered, so the margin you planned is what you actually keep rather than a simple markup on cost.
Thailand Severance Pay Calculator
Severance owed on termination under Section 118 of the Labour Protection Act, including the 400-day tier at 20 years of service. Free, no sign-up.
Thai Tax on Severance and Retirement Lump Sums
Calculate tax on a one-off payment on leaving employment using the separate method in section 48(5), including the severance-pay exemption up to THB 300,000, the THB 7,000 per year of service deduction and the further 50% deduction.
Thailand Social Security Contribution Calculator
Your Thai social security contribution under Section 33, 39 or 40 at 2026 rates, after the wage ceiling rose to 17,500 baht and the cap to 875 a month.
Thailand Stamp Duty Calculator
Calculate Thai stamp duty on land or building leases, hire-of-work contracts, hire-purchase and loan agreements under the Revenue Department schedule, including fractions and the loan cap.
Thailand Tax Refund Calculator
Compare the Thai tax withheld from your pay against what you actually owe, and see if you get a refund before you file. Revenue Department rates. Free.
Thailand Exchange and Fee Calculator
Compare two exchange quotes including fixed and percentage fees. Calculate net Thai baht received or the source-currency cost of card payments and ATM cash.
Thailand Tourist VAT Refund Calculator
Estimate Thailand tourist VAT refunds for 1–8 P.P.10 forms. Apply the official table separately, check the 60-day limit and deduct entered payout fees in THB.
Thailand Social Security Unemployment Benefit
Work out the Thai social security unemployment benefit — 60% of wages after dismissal, 30% after resignation — including the registration deadline that quietly costs many claimants weeks of payments.
Thailand VAT Calculator
Add 7% Thai VAT to a net price, or extract the VAT from a VAT-inclusive total. Includes the formula and an explanation of the mistake most people make.
Thailand Withholding Tax Calculator
Work out Thai withholding tax by type of payment — contracting, services, rent, advertising, transport — with VAT separated out correctly.
Thai Work Injury Compensation Calculator
Calculate Workmen's Compensation Fund payments when an employee injured or ill because of work is told by a doctor to stop working: 70% of monthly wages, up to THB 14,000 a month.