US Sales Tax Calculator
Professional US sales tax calculator supporting all 50 US states, District of Columbia, and NOMAD zero-tax jurisdictions. Seamlessly switch between Add Tax (Net to Gross) and Extract Tax (Gross to Net) with state and local rate breakdowns.
Sales Tax by State (All 51 Jurisdictions)
Compare statutory state sales tax rates, average local options, and combined liabilities across all 50 US states and Washington, D.C.
| State / Jurisdiction | State Rate | Avg. Local | Combined | Total Tax | Total |
|---|---|---|---|---|---|
Alabama (AL) | 4% | 5.29% | 9.29% | $9.29 | $109.29 |
Alaska (AK)NOMAD | 0% | 1.76% | 1.76% | $1.76 | $101.76 |
Arizona (AZ) | 5.6% | 2.77% | 8.37% | $8.37 | $108.37 |
Arkansas (AR) | 6.5% | 2.97% | 9.47% | $9.47 | $109.47 |
California (CA) | 7.25% | 1.57% | 8.82% | $8.82 | $108.82 |
Colorado (CO) | 2.9% | 4.87% | 7.77% | $7.77 | $107.77 |
Connecticut (CT) | 6.35% | 0% | 6.35% | $6.35 | $106.35 |
Delaware (DE)NOMAD | 0% | 0% | 0% | $0.00 | $100.00 |
Florida (FL) | 6% | 1.01% | 7.01% | $7.01 | $107.01 |
Georgia (GA) | 4% | 3.38% | 7.38% | $7.38 | $107.38 |
How US Sales Tax Is Calculated: State & Local Formula Models
Mathematical frameworks and step-by-step algorithms for calculating state, county, and municipal sales taxes across US jurisdictions.
1. Adding Sales Tax (Net to Gross)
Determines the final invoice total by applying combined state, county, and municipal tax rates to taxable retail goods and services across thousands of US local tax jurisdictions.
2. Extracting Sales Tax (Gross to Net)
Reverse-calculates the net selling price and isolates statutory state and local tax liabilities from an all-inclusive price tag or total transaction receipt.
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Frequently Asked Questions (FAQ)
QHow is sales tax calculated in the United States?
In the United States, sales tax is calculated by multiplying the pre-tax purchase price by the combined sales tax rate (state rate plus any applicable county, city, or special district rates). Unlike national VAT systems, the US does not have a federal sales tax; each state and local jurisdiction sets its own statutory rates.
QWhat is the difference between adding sales tax and extracting sales tax?
Adding sales tax (Net to Gross) computes the tax on a pre-tax amount: Tax = Net * Rate, and Gross = Net + Tax. Extracting sales tax (Gross to Net) calculates the pre-tax base cost from a tax-inclusive total: Net = Gross / (1 + Rate), and Tax = Gross - Net.
QWhat are NOMAD states and do they charge sales tax?
NOMAD is an acronym for the five states without a statewide sales tax: New Hampshire, Oregon, Montana, Alaska, and Delaware. While four of these have zero sales tax statewide and locally, Alaska allows local municipalities to levy local sales taxes averaging approximately 1.76%.
QHow do local, county, and municipal sales tax rates work?
Most US states permit counties, cities, and special transit districts to levy additional local sales taxes on top of the state base rate. As a result, the total sales tax rate varies significantly by ZIP code and municipal jurisdiction within the same state.
QWhat is economic nexus and when do online sellers collect sales tax?
Following the 2018 Supreme Court South Dakota v. Wayfair ruling, out-of-state and e-commerce sellers must collect sales tax once they exceed an economic nexus threshold in a state (typically $100,000 in annual gross sales or 200 separate transactions).
QWhich goods and services are commonly exempt from US sales tax?
Tax exemptions vary widely by state jurisdiction. Common exemptions include unprepared grocery food items, prescription medications, medical devices, educational textbooks, and certain clothing items (e.g. in New York, Pennsylvania, and Minnesota under specific price thresholds).
Financial & Regulatory Disclaimer
Generated by enetko for informational purposes only. Figures are based on the values entered and do not constitute financial, tax, or legal advice.