What is the difference between effective and marginal tax rate?

Your marginal rate is the tax rate on your last dollar of income. Your effective rate is the average rate across all your income. For example, someone earning $100,000 in the US has a 22% marginal rate but an effective rate of around 15%.

Does this include state or provincial tax?

No, this calculator shows only federal/national income tax. In countries like the US, Canada, Germany, and India, additional state or provincial taxes apply on top of federal rates.

How do I use this calculator for other countries?

Navigate to the calculator URL for your country (e.g. /us/finance/tax-calculator for the US, /in/finance/tax-calculator for India). Each country URL loads the correct brackets and currency automatically.

Are social security or pension contributions included?

No. This calculator focuses on income tax only. In most countries, social contributions (401k, EPF, NI, GOSI, CPF, etc.) are separate from income tax and reduce your taxable income.

Finance/Calculator

Income Tax Calculator

Calculate your income tax liability with country-specific brackets. Switch your country to get localised results.

Enter Your Income

Annual Gross Income (฿)

🇹🇭 Thailand — Key Schemes & Deductions

Government Housing Bank (GH Bank) LoansNational Housing Authority ProjectsRetirement Mutual Fund (RMF)Provident Fund (PVD)

Estimated Tax฿0

Your Tax Breakdown

0.0%effective

Estimated Tax

฿0

Take-home: ฿75,000

Effective: 0.0%Marginal: 35%

Tax Bracket

RateTax

฿0 – ฿150,000

0%฿0

Total Tax฿0

Note: PIT (Personal Income Tax). Standard deduction: 50% of income, max THB 100K.

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How It Works

The income tax calculator uses the progressive (marginal) tax system used in most countries. Your income is split into tax brackets, and each portion is taxed at the rate applicable to that bracket — not your entire income at the highest rate.

For example, if you earn $50,000 in the US, only the portion above $47,150 is taxed at 22%. Everything below falls into lower brackets.

Results are automatically localised for Thailand with the correct tax brackets, currency, and local notes.