Free · Browser-Based · Checkout Math

Sales Tax Calculator

Calculate tax amount, total after tax, and reverse tax-inclusive pricing to estimate receipts, invoices, and shopping totals.

Mode

Tax rate (%)

Price / total

Rounding

Tax summary

🎯 Common Use Cases

Estimate checkout totals

Remove included sales tax

Review invoice tax amount

Check expense reimbursement totals

Can I remove tax from a total?

Yes. Use remove mode to reverse-calculate the pre-tax amount from a tax-inclusive total.

Does it support custom tax rates?

Yes. Enter any tax rate percentage you need.

Is this local only?

Yes. All calculations run in your browser.