Standard Thai VAT
Thailand VAT Calculator 7%
Choose whether your amount excludes or includes VAT. The calculator adds 7% or divides a VAT-inclusive amount by 1.07.
Start calculatingYour figures
Calculate your estimate
Adjust any field. The result updates immediately and stays on this device unless you choose to share it.
VAT-inclusive total
—Enter your figures to see the estimate.
- Price before VAT
- —
- VAT amount
- —
- VAT rate
- —
- Calculation
- —
- Registration threshold indicator
- —
Enter annual turnover to screen the general VAT-registration threshold.
Estimates use the values entered and the methodology documented below. Check current provider or authority information before acting.
Built for the complete search intent
Use the right operation: add 7%, or divide a VAT-inclusive total by 1.07
Adding VAT and finding VAT inside an existing total are different calculations. The page handles both and adds an optional turnover screen against Thailand’s general VAT-registration threshold.
Thailand VAT calculator, add 7% VAT and extract VAT from a total- Add VAT
- Net × 1.07Use this when the entered price excludes Thailand’s standard 7% VAT.
- Extract VAT
- Gross ÷ 1.07Use this when the entered total already includes VAT.
- General threshold
- THB 1.8 millionAnnual turnover above the general threshold is a prompt to verify registration obligations.
- Registration timing
- Check within 30 daysThe Revenue Department states a 30-day registration period after crossing the threshold.
VAT treatment
Standard-rated, zero-rated and exempt are not interchangeable
The calculator defaults to the standard 7% calculation. Confirm the legal treatment before issuing an invoice.
| Treatment | Calculator use | Important distinction |
|---|---|---|
| Standard-rated | Use the 7% add or extract mode. | A VAT registrant generally charges output VAT on the taxable sale. |
| Zero-rated | Do not substitute the 7% result. | The transaction remains taxable at 0%; input-VAT treatment can differ from an exemption. |
| Exempt | Do not add 7% automatically. | The activity is outside ordinary output-VAT charging under the applicable exemption. |
| Not yet classified | Calculate the arithmetic only. | Check the Revenue Code, invoice facts and registration status before filing. |
The turnover indicator is a screening aid. Imports, digital services, voluntary registration and exempt activities can require different treatment.
Decision checklist
Before putting VAT on a quote or invoice
The arithmetic is simple; the transaction classification is the part that needs evidence.
- 01
Confirm whether the quoted amount already includes VAT.
- 02
Confirm that the supplier is VAT registered and the transaction is standard-rated.
- 03
Use the tax invoice and accounting records as the filing evidence, not a calculator screenshot.
- 04
Review registration promptly when annual turnover approaches or exceeds THB 1.8 million.
Method and limits
What this estimate means
Add VAT: amount × 1.07. Extract VAT: total ÷ 1.07; VAT is the difference.
- Included
- The standard 7% Thai VAT rate.
- Not included
- VAT-exempt, zero-rated, special-rate transactions and registration obligations.
Before you decide
Use the result carefully
- 01
Confirm whether a quoted price already includes VAT.
- 02
Use tax invoices and official accounting records for filing.
- 03
Check whether the transaction is exempt or zero-rated.
Primary references
Official and authoritative sources
Formula assumptions are reviewed against these sources. A linked source may be available primarily in Thai.
Questions
Common questions
How do I extract VAT from a total?
Divide the VAT-inclusive total by 1.07 to obtain the pre-VAT amount, then subtract it from the total.
Does every transaction use 7% VAT?
No. Exempt and zero-rated transactions exist, and VAT registration rules also matter.
Does turnover above THB 1.8 million always settle my VAT position?
No. The threshold is a screening signal. Exempt activities, imports, digital services, voluntary registration and other facts can change the obligation.