Sales Tax Calculator
Enter any two of pre-tax price, tax rate, and total with tax—we solve for the third. Useful at checkout, for expense reports, and when reverse-engineering...
Enter values and click Calculate.
Schedule
Introduction
Enter any two of pre-tax price, tax rate, and total with tax—we solve for the third. Useful at checkout, for expense reports, and when reverse-engineering tax from a receipt total.
Sales Tax Math
Enter any two of pre-tax price, tax rate, and total with tax—we solve for the third. Useful at checkout, for expense reports, and when reverse-engineering tax from a receipt total.
State and Local Rates
Combined rates vary by city and county. Use your local combined rate; online retailers may collect based on delivery address.
Business Use
Retailers remit collected tax to authorities; this tool is for consumer and back-of-napkin estimates—not sales tax filing.
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How It Works
- Enter your amounts, rates, and term in the form. Use the same units shown in the labels (dollars, years, percent).
- Click Calculate to run the Sales Tax Calculator engine. Invalid or empty required fields show a clear error message.
- Review the summary cards for the key outputs. Expand schedules or tables when available for period-by-period detail.
- Copy, print, or share your scenario link. Reset the form anytime to start a fresh comparison.