How the calculator works
Sales Tax = Before-tax Price × Sales Tax Rate
Total with Tax = Before-tax Price + Sales TaxFree business utility calculator
Sales Tax Calculator
Estimate sales tax and total with tax for supplies, invoices, or quick price checks.
Tool & Tally calculators are for general business planning and estimating; they are not tax, legal, payroll, financial, or accounting advice. No guaranteed revenue, profit, leads, bookings, sales, rankings, or ROI.
Business utility
Enter your numbers.
Formula and assumptions
Common mistakes this catches
- Using the wrong local tax rate.
- Mixing taxable and non-taxable items.
- Treating this as tax advice instead of a quick planning check.