VAT for Business Calculator
The VAT for Business Calculator estimates a tax and statutory rate estimate for your scenario from the quantities, rates, period, units and other assumptions requested on the page. Replace the example values with your own vat business figures and recalculate after changing an assumption. Treat it as a planning estimate and independently verify the current rule or provider terms.
[under VAT law of year 2026]
The VAT is calculated according to the monthly output VAT and the monthly input VAT.
Calculation results
What is VAT in Thai business?
VAT (Value Added Tax) or VAT is the tax collected at each stage of production/sales. Businesses must bring in the VAT collected from customers (Output VAT) minus the VAT lost on the purchase of goods (Input VAT).
Calculation steps
- Find total revenue ÷ 1.07 to separate VAT
- Take that revenue × 0.07 = Output VAT
- Output VAT - Input VAT (VAT on expenses)
- Result = VAT to be transferred
Input VAT
- Tax stamp/receipt required.
- - I'm done.
- Use for business operations.
Frequently asked questions
How is the VAT to be transferred calculated?
VAT = (Sales ÷ 1.07) × 0.07 - VAT spent on purchases/expenses by monthly reporting to the tax office
What is Input VAT?
VAT deducted for purchases of materials, services, operating expenses with tax stamps can be deducted from output VAT.
Do all companies have to bring in VAT?
Businesses that register VAT will have to bring small companies not registered under the DBD criteria (revenue less than 1.8 million baht/year)
What if the input VAT is higher than the output VAT?
You get a VAT credit that you can deduct next month or refund if you export.
What size business must register for VAT?
Entrepreneurs whose income from selling products or services exceeds 1,800,000 baht per year must register for VAT within 30 days from the date their income exceeds.
What are VAT Input and Output Tax?
Output VAT: Tax collected from customers | Input VAT: Tax paid to suppliers | Tax that must be remitted to the Revenue Department = Output VAT - Input VAT. If negative, receive a refund or credit the next month.
What products and services are exempt from VAT?
Fresh food, unprocessed fruits and vegetables, live animals, fertilizers and insecticides, newspapers/magazines, health/education services, domestic passenger transportation
What is the difference between VAT Zero Rate and VAT Exempt?
Zero Rate (0%): VAT paid but 0% rate applied for exports — still can claim Input VAT | Exempt (excepted): VAT paid but not claim Input VAT
📌 References
- • Excise Department — VAT Regulations B.E. 2560
- • Value Added Tax Act B.E. 2545
- • Tax Department — VAT Guidelines 2026
English calculator guide
How to use the VAT for Business Calculator
Use this page to test a specific vat business 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 vat for business estimate instead of relying on a generic example.
- Build a baseline vat business case with figures that match your situation.
- Run a second vat business case after changing the rate, period, quantity or other key assumption.
- Record the difference between the two vat business results and the input responsible for it.
Inputs for the vat business estimate
For this vat business calculation, check the quantities, rates, period, units and other assumptions requested on the page. The result is designed to show a tax and statutory rate estimate for your scenario, not a guaranteed provider price or official decision.
How the vat business result is calculated
The calculator applies the displayed statutory rates, thresholds and allowances to the figures you enter. Reusing the same vat business inputs will produce the same estimate, which makes the page suitable for controlled scenario comparisons.
Checks for a vat business decision
Confirm any current rate, threshold or provider rule that could change the final amount. For vat business, Use the result as a commercial planning estimate. Confirm supplier prices, payment-provider fees, taxes, minimum charges and contract terms before setting a price or budget. 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