Sales Tax Calculator
Add sales tax to a price, or work backwards from a tax-included price to find the pre-tax amount.
Formulas
Add tax: Total = Price ร (1 + r). Remove tax: Pre-tax = Price รท (1 + r).
Frequently Asked Questions
Is the Sales Tax Calculator free to use?
Yes, the Sales Tax Calculator is 100% free to use. There are no subscriptions, no sign-ups, and no hidden fees.
Is my data safe when using the Sales Tax Calculator?
Absolutely. All calculations performed by the Sales Tax Calculator happen locally in your web browser. We do not store, track, or transmit your inputs or results to any server.
How accurate is the Sales Tax Calculator?
Our Sales Tax Calculator uses industry-standard formulas and methodology. You can view the exact formula and calculation logic used in the methodology section above to verify the math yourself.
Can I use the Sales Tax Calculator on my mobile phone?
Yes! The Sales Tax Calculator is fully responsive and works seamlessly on all devices including smartphones, tablets, and desktop computers.