Formula
Apply the discount first, then multiply the discounted price by the entered sales tax rate and add it to the discounted price.
US sales tax estimate
US Sales Tax Calculator
Enter a price, discount and sales tax rate to estimate the total paid at checkout. Local rates and taxable items vary by state, city and product category.
Estimated total price
Enter values to calculate Calculation basis date: May 17, 2026. User-entered or preset state planning rate.Calculation Basis and Official Sources
Calculation basis date: May 17, 2026. Uses user-entered rates and points users to state and local tax agencies because there is no single federal sales tax rate.
Before collecting, remitting or relying on sales tax, check the relevant state revenue department, local rules, marketplace settings and a qualified tax adviser.
Formula and Interpretation
How to read it
Use this for checkout planning. Online marketplace, shipping, food, clothing, medicine and local district rules can change the taxable amount.
This calculator and its examples are for general information and rough estimation only. They are not legal, tax, accounting, payroll, lending, mortgage, investment, insurance, medical or other professional advice.
Rates, bands, thresholds, deductions, credits, local rules, employer settings, lender terms, product rules and personal facts can change. We do not guarantee that the calculations are accurate, complete, current or suitable for your situation.
US note: this page is not legal, tax, accounting, payroll, lending, mortgage, employment, insurance or financial advice. Check IRS, SSA, state agencies, your employer, lender, CPA, attorney or qualified adviser before acting.
Before You Rely on the Result
Practical examples
Enter 8.25% for a local checkout estimate when the receipt lists that rate.
Set discount to 20% to see tax after a coupon if the seller taxes the discounted price.
Use 0% for states or items where sales tax does not apply, then confirm locally.
What this includes
- Price after discount
- Sales tax using the entered rate
- Total estimated checkout price
What this does not include
- Product exemptions and marketplace facilitator rules
- County, city and special district rules unless entered manually
- Use tax, tax holidays and business collection obligations
When to check official sources
Check the state tax agency or seller receipt before collecting, remitting or disputing sales tax.