Sales Tax Calculator
Estimate sales tax from the entered rate, taxable amount, and deductions. Use this free sales tax calculator for fast, clear results with no signup required.
Sales Tax Calculator guide
What it is for
The Sales Tax Calculator estimates a financial outcome so you can compare scenarios before making a decision.
How it is calculated
Apply the discount to the item price first: discounted price = price × (1 − discount / 100). Sales tax is discounted price × tax percentage / 100.
Assumptions
Actual tax rates depend on jurisdiction, tax year, deductions, and personal circumstances.
Example
Worked example — Item price: $100; Sales tax rate: 8%; Discount before tax: 0%. Total after tax: $108; Sales tax amount: $8.
Limitations
This is not financial, tax, legal, or investment advice. Confirm terms with official documents and a qualified professional.
Public source: IRS: Individual Tax Filing