Thailand VAT GST Sales Tax Calculator
Free Thailand vat gst sales tax calculator with country-specific defaults and clear step-by-step results.
About Thailand VAT GST Sales Tax Calculator
Computes VAT/GST/sales tax on a price, and can work backwards from a tax-inclusive total to find the pre-tax base.
Formula
Formula
Total = base × (1 + rate) or Base = total / (1 + rate)
Check the applicable Thailand VAT/GST/sales-tax rate — rates vary by product and region.
Frequently Asked Questions
How does this calculator work?
Computes VAT/GST/sales tax on a price, and can work backwards from a tax-inclusive total to find the pre-tax base.
Are the figures specific to Thailand?
Retailers and shoppers both need the tax-inclusive total and the pre-tax base to compare prices and invoice correctly.
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Thailand specifics
- Currency
- ฿ THBThai Baht
- Region
- Asia
- Country code
- TH
- Amounts look like
- THB 1,234,567.89
- Dates look like
- Mar 9, 2026
- Units
- metricWeek starts Sunday
Results on this page are expressed in THB (Thai Baht). Figures are estimates for general planning — confirm current rates and thresholds with the relevant Thailand authority before relying on them.