Tonga VAT GST Sales Tax Calculator
Free Tonga vat gst sales tax calculator with country-specific defaults and clear step-by-step results.
About Tonga 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 Tonga 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 Tonga?
Retailers and shoppers both need the tax-inclusive total and the pre-tax base to compare prices and invoice correctly.
Related Calculators
- Tonga Income Tax Calculator
- Tonga Property Tax Calculator
- Tonga Business Days Calculator
- Tonga Currency Converter
- Tonga Electricity Bill Calculator
- Tonga Employer Payroll Cost Calculator
- Tonga Exchange Rate Calculator
- Tonga Fuel Cost Calculator
- Tonga Hourly to Annual Salary Calculator
- Tonga Import Duty Calculator
Tonga specifics
- Currency
- TOP
- Region
- Oceania
- Country code
- TO
- Amounts look like
- T$1,234,567.89
- Dates look like
- 9 Mar 2026
- Units
- metricWeek starts Monday
Results on this page are expressed in TOP. Figures are estimates for general planning — confirm current rates and thresholds with the relevant Tonga authority before relying on them.