Quickly add or remove sales tax for shopping, invoices, and budgeting.
Overview
Sales tax changes final checkout amount and can vary by location.
This calculator adds tax to net price or extracts net from tax-inclusive totals.
It is useful for both consumer purchases and small-business billing.
Always confirm local rules for taxable categories and exemptions.
Steps
Input price before tax.
Use local applicable percentage.
Add tax to net price or reverse from gross total.
Review tax amount and final price.
Multiply for bulk transactions.
Math
Tax = Price × rate; Total = Price + Tax
Tax is percentage of taxable base, then added to base amount for final payable total.
Worked cases
Tax = 150 × 0.0825 = 12.375; Total = 162.375
Tax is $12.38; total is $162.38.
Net = 216 / 1.08
Pre-tax amount is $200.
Subtotal = 200; tax = 14; total = 214.
Bulk purchase total includes $14 tax.
Why use this
Questions