Browse States Sales Tax Calculator Nexus Checker Filing Deadlines Exemption Forms Tax Rankings eCommerce Tax Guide Tax Holidays
Verified May 2026

Free Sales Tax Calculator

Calculate sales tax instantly for any US city or county. Select your state and city to get the exact combined rate including state, county, and local taxes.

Advanced Sales Tax Calculator

Estimate tax with shipping, discounts, and exempt subtotal support.

Live Tool
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Rate applied

0.000%

Selected location

Sales tax

$0.00

Taxable base:

Total due

$0.00

Effective rate:

Rounded to the nearest cent. Tax treatment of shipping and discounts can vary by state.

Sitewide Helper

Sales Tax Calculator & Compliance Helper

One compact utility block for tax calculation, reverse calculation, ZIP lookup, nexus checks, exemption guidance, and product taxability.

Advanced Sales Tax Calculator

Estimate tax with shipping, discounts, and exempt subtotal support.

Live Tool
$
$
$
$

Rate applied

0.000%

Selected location

Sales tax

$0.00

Taxable base:

Total due

$0.00

Effective rate:

Rounded to the nearest cent. Tax treatment of shipping and discounts can vary by state.

Reverse Sales Tax Calculator

Work backward from the total paid to estimate the pre-tax price and tax amount.

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%

Pre-tax price

$0.00

Tax amount

$0.00

ZIP / City Sales Tax Lookup

Search by ZIP code, city, county, or state to find current combined rates and local breakdowns.

Economic Nexus Checker

Compare your state-specific sales activity against current nexus thresholds using existing site data.

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Nexus estimate

Should I Collect Sales Tax?

A fast intent-matching decision tree for businesses, marketplace sellers, and remote sellers.

Do you sell taxable goods or taxable services?

Do you sell into states outside your home state?

Have you crossed a nexus threshold in a destination state?

Do marketplaces handle most of your sales?

Do you have physical presence in the state?

Decision

Exemption Certificate Finder

Point buyers and sellers toward the right official portal and documentation checklist.

Certificate path

Typical checklist

Product Taxability Checker

Version 1 uses the categories already modeled in the current database and always links back to official verification.

State-aware estimate