Sales tax from an entered rate
Use the sales tax calculator when the question is before-tax price, after-tax price, tax amount, or effective rate from a sales-tax rate you already verified with the relevant state or local tax authority.
Calculator category
Tax Financial Calculators
Tax calculators help separate entered sales-tax or VAT rates from net price, tax amount, and tax-inclusive totals.
Start with the tax question you need to estimate: US-style sales tax added to a before-tax price, or VAT-inclusive and VAT-exclusive price conversion from a rate you already verified.
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Tax calculator paths
Each path below points to one canonical calculator and its formula notes. Generated examples and child help routes are intentionally excluded from this category hub.
VAT inclusive or exclusive price
Use the VAT calculator when the question is net price, gross price, VAT amount, or reverse VAT rate from a VAT rate you already verified with HMRC, EU, or another local VAT authority.
Sales Tax Calculator
Calculate before-tax price, sales tax rate, after-tax price, and tax amount from any two known values.
VAT Calculator
Calculate VAT-inclusive price, VAT-exclusive price, VAT rate, or tax amount from two known values.
Source boundaries for estimates
- These calculators use the prices and tax rates you enter. They do not look up sales-tax or VAT rates, determine taxability, exemptions, filing requirements, place-of-supply rules, nexus, registration, invoice treatment, reverse-charge treatment, input-tax reclaim, marketplace rules, or jurisdiction rules.
- Tax outputs are educational estimates, not tax advice, not legal advice, not a filing calculation, not an official tax determination, not a rate lookup, not a VAT invoice calculation, not a sales-tax return, and not personalised business or consumer advice.
- Use current state, local, HMRC, EU, or other official tax-authority sources, accounting records, invoices, provider documents, and qualified tax advice before acting on rate, exemption, filing, reverse-charge, reclaim, registration, or jurisdiction-specific questions.