Compare options for combining/separating dividend tax filings.
Withholding rate 10% updated for year 2026
Dividend Tax Calculator
The Dividend Tax 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 dividend tax figures and recalculate after changing an assumption. Treat it as a planning estimate and independently verify the current rule or provider terms.
Calculate tax on Thai stock dividends Ready to compare whether you should "include" or "exclude" your annual tax filing.
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Dividend tax in Thailand
Dividends received from companies listed on the Thai Stock Exchange It is considered as assessable income of type 4 according to Section 40(4)(b) of the Revenue Code, with withholding tax 10% before being paid to shareholders.
Two options for dividends
- Not included in submission: It is considered that the tax has been fully paid at the rate 10%, no need to specify it in the form. P. N. D.90/91
- Included in submission: Combine dividends with other income Calculate progressive tax, claim 10% tax credit that has already been deducted — ideal for people with low total incomes. (Tax rate is lower than 10%)
Formula used for calculation
Dividend tax = Dividend amount × Tax rate
Dividend tax rates are between 10%−15% According to stock type and conditions If 10% has already been deducted, additional payments may not be required.
Calculation example
Example 1: Dividend received 50,000 baht (deducted 10%)
- dividend = 50,000 baht
- Tax deducted = 50,000 × 10% = 5,000 baht
- Net dividends = 50,000 − 5,000 = 45,000 baht (Really get it)
- No additional payment required if 10% is deducted.
Example 2: Dividend 100,000 baht combined with other income (using the Full Inclusion method)
- dividend = 100,000 baht
- Tax at a progressive rate of 10% = 100,000 × 10% = 10,000 baht
- Deduction of taxes already deducted = 10,000 baht (already deducted)
- Additional taxes paid = 10,000 − 10,000 = 0 baht
summarize
Dividends from stocks are subject to tax at the specified rate. Generally, the company pays shares withholding taxes. Shareholders may not be required to pay additional amounts if conditions are met.
refer: Revenue Department: Dividend Tax [Update 2026]
Frequently asked questions
At what rate are dividends from Thai stocks taxed?
Do dividends have to be included in the annual tax filing?
When should dividends be included in tax returns?
How are dividends from mutual funds taxed?
Learn more from our article.
English calculator guide
How to use the Dividend Tax Calculator
Use this page to test a specific dividend tax 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 dividend tax estimate instead of relying on a generic example.
- Build a baseline dividend tax case with figures that match your situation.
- Run a second dividend tax case after changing the rate, period, quantity or other key assumption.
- Record the difference between the two dividend tax results and the input responsible for it.
Inputs for the dividend tax estimate
For this dividend tax 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 dividend tax result is calculated
The calculator applies the displayed statutory rates, thresholds and allowances to the figures you enter. Reusing the same dividend tax inputs will produce the same estimate, which makes the page suitable for controlled scenario comparisons.
Checks for a dividend tax decision
Check the effective date and confirm current rules with the relevant Thai authority or a qualified adviser. For dividend tax, Treat the result as an estimate for planning. Tax rules, eligibility and deduction limits can depend on the tax year and your evidence, so compare the result with current Revenue Department guidance or a qualified adviser. 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
- Tax and statutory rate
- Last English review
- 26 July 2026