US sales tax calculator
Use a combined local sales-tax rate you enter. No ZIP-code lookup or exemption assessment.
Input
How to use this tool
- Enter your values or choose a local file. Replace the example data with your own.
- Review options, units and assumptions, then run the tool.
- Check the result before copying or downloading it. Keep an original copy of important files.
Method & assumptions
Use a combined local sales-tax rate you enter. No ZIP-code lookup or exemption assessment.
tax = base × rate ÷ 100Worked example
100 × 7.5% = 7.50; total = 107.50.
Limits & important notes
Mathematical estimates, not financial, tax or legal advice. Real fees, rounding and contract terms may change the result. Check important decisions with a qualified professional.
Content updated:
Privacy & Free to use
Are my inputs stored?
Your inputs stay in this tab. We do not receive your files, pasted text or calculation values.
Is this tool free?
Yes. No signup or payment is required.
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