The Land Tax Deductions Calculator estimates a property-cost or return estimate for your scenario from the property value, financing or rental assumptions, time period, fees and rates shown on the page. Replace the example values with your own land tax deductions figures and recalculate after changing an assumption. Treat it as a planning estimate and independently verify the current rule or provider terms.
Calculate the tax deduction for the purchase of the main home including mortgage interest, expenses and the maximum legal discount.
Discount information
Deductions
Mortgage discount.
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Reduction of expenses.
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All discounted.
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Frequently asked questions
How many types of property tax deductions are there?
Land tax deductions have 2 types: (1) Maximum mortgage interest 100,000 baht (2) Maximum first home expense 15,000 baht but remember only one is applicable
What is the legal taxpayer's main home?
The taxpayer's main home is the home where the taxpayer or spouse has lived for 180 days or more per tax year and is a registered allocation project.
Are foreign expenses deductible?
No, only the main house in Thailand.
What is the rate for transferring a house in the year 2026?
Transfer fee 2% of the appraised value (reduced to 1% for housing priced not more than 3 million until 31 Dec. 2025), mortgage fee 1% of the credit line (reduced to 0.01% for loans not exceeding 3 million)
What is the difference between specific business tax and stamp duty?
Specific business tax 3.3% (holding less than 5 years or not having a name in the house registration) | Stamp duty 0.5% (holding 5 or more and having a name in the house registration for 1 years) pay either one.
What is the difference between the Land Department's appraisal price and the market price?
The appraised price is the price set by the Land Department to calculate fees, updated every 4 year, often lower than the market price. 20-50% Taxes and fees are based on the appraised or purchase price. Whichever is higher
What are the costs of buying a second-hand home?
Transfer fees, special business tax or stamp duty, mortgage fees, charges for checking the liability, valuation fees, repair and insurance fees, all of which can amount to 5-10% of the purchase price.
The calculated results are estimates for tax or expense planning. Before actually submitting, you should check the latest rates and conditions from the official agency.
Calculated based on the information you enter and the rate specified on the tool page.
Special cases may require additional evidence or conditions.
The final numbers may change according to actual documents and government agency announcements.
Disclaimer: The results of the calculation are estimates under current law. You should check with the Office of the Registrar General.
English calculator guide
How to use the Land Tax Deductions Calculator
Use this page to test a specific land tax deductions 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 land tax deductions estimate instead of relying on a generic example.
Build a baseline land tax deductions case with figures that match your situation.
Run a second land tax deductions case after changing the rate, period, quantity or other key assumption.
Record the difference between the two land tax deductions results and the input responsible for it.
Inputs for the land tax deductions estimate
For this land tax deductions calculation, check the property value, financing or rental assumptions, time period, fees and rates shown on the page. The result is designed to show a property-cost or return estimate for your scenario, not a guaranteed provider price or official decision.
How the land tax deductions result is calculated
The calculator applies the displayed statutory rates, thresholds and allowances to the figures you enter. Reusing the same land tax deductions inputs will produce the same estimate, which makes the page suitable for controlled scenario comparisons.
Checks for a land tax deductions decision
Confirm current lender, tax, transfer and provider terms before committing. For land tax deductions, Use the result as a planning estimate and confirm any rate, rule or threshold that may have changed before acting. 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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