Sales Tax Calculator

Add or extract sales tax to calculate pre-tax price, tax amount, and total price.

Reviewed by CalculatorApp.me Finance Team

Complete Guide to US Sales Tax

State rates, exemptions, nexus rules, and formulas β€” your definitive sales tax reference.

45 states

Impose state sales tax

7.25%

Highest state rate (CA)

0%

5 no-sales-tax states

~$400B

Annual US sales tax revenue

What Is Sales Tax?

Sales tax is a consumption tax imposed by state and local governments on the sale of goods and certain services at the point of purchase. Unlike income tax, sales tax is paid by the buyer and collected by the seller who remits it to the government. In the United States, there is no federal sales tax β€” rates are set independently by each state, county, and city, creating over 11,000 unique tax jurisdictions.

Five states β€” Alaska, Delaware, Montana, New Hampshire, and Oregon (ADMNO) β€” levy no state sales tax, though some Alaska municipalities do impose local sales taxes. Combined state and local rates can reach as high as 11.45% in parts of Louisiana and Alabama. Most states exempt groceries, prescription drugs, and sometimes clothing from sales tax.

Since the landmark South Dakota v. Wayfair (2018) Supreme Court decision, states can levy sales tax on remote sellers (e-commerce) even without physical presence β€” creating economic nexus rules that dramatically expanded online sales tax collection.

How Sales Tax Is Calculated

Basic Sales Tax
Sales Tax = Price Γ— (Tax Rate Γ· 100)
Total = Price + Sales Tax

Example (8.875% NYC):
$50.00 Γ— 0.08875 = $4.44
Total = $50.00 + $4.44 = $54.44

Tax rate is the combined state + county + city rate for the purchase location.

Tax-Inclusive Price (Back-Calculate)
Pre-Tax Price = Total Γ· (1 + Tax Rate)
Tax Amount = Total βˆ’ Pre-Tax Price

Example (total $54.44, 8.875%):
$54.44 Γ· 1.08875 = $50.00
Tax = $54.44 βˆ’ $50.00 = $4.44

Useful when a receipt shows only the total and you need the pre-tax amount.

Combined Rate Calculation
Combined Rate = State + County + City + Special District

Example (Los Angeles, CA):
State: 7.25%
County: 0.25%
City: 0.00%
Special: 2.25% (Metro + Transit)
Combined: 9.50%

Always use the destination-based combined rate for the delivery location.

Exempt & Reduced Items
Taxable Amount = Total Purchase βˆ’ Exempt Items
Tax = Taxable Amount Γ— Rate

Example (grocery-exempt state):
Clothing: $80.00 (taxable)
Groceries: $45.00 (exempt)
Tax = $80.00 Γ— 0.065 = $5.20
Total = $80.00 + $45.00 + $5.20 = $130.20

Most states exempt groceries and prescription drugs; some exempt clothing.

Sales Tax Rates by State (Top 15)

StateState RateAvg. LocalCombinedGrocery Exempt?
California7.25%1.57%8.82%Yes
Louisiana4.45%5.10%9.55%No (reduced)
Tennessee7.00%2.55%9.55%No (4% reduced)
Arkansas6.50%2.97%9.47%No (0.125% reduced)
Washington6.50%2.73%9.23%Yes
Alabama4.00%5.22%9.22%No
New York4.00%4.52%8.52%Yes
Texas6.25%1.94%8.20%Yes
Illinois6.25%2.49%8.74%No (1% reduced)
Florida6.00%1.01%7.01%Yes
Pennsylvania6.00%0.34%6.34%Yes
Ohio5.75%1.47%7.22%Yes
Georgia4.00%3.29%7.29%Yes
New Jersey6.625%N/A6.625%Yes
Oregon0%0%0%N/A

History of Sales Tax in America

1921

West Virginia β€” First State Sales Tax

West Virginia enacted the first broad-based state sales tax at 2%. Mississippi followed in 1930, and momentum grew during the Great Depression.

1930s

Depression-Era Expansion

24 states adopted general sales taxes between 1930 and 1940 as income tax revenue plummeted. Revenue stability made sales tax popular with state governments.

1967

National Bellas Hess v. Illinois

The Supreme Court ruled states cannot require out-of-state sellers to collect sales tax without physical presence β€” the physical presence rule stood for 51 years.

1992

Quill Corp v. North Dakota

The Supreme Court reaffirmed the physical presence requirement, setting the stage for decades of lost tax revenue as e-commerce grew exponentially.

2000

Streamlined Sales Tax Project

States joined the SSUT agreement to simplify and standardize sales tax rules across jurisdictions, making multi-state compliance less burdensome for sellers.

2018

South Dakota v. Wayfair

The Supreme Court overturned the physical presence test, allowing states to tax remote sellers based on economic nexus (e.g., $100K in sales or 200 transactions).

Key Research & Data

Sales Tax Myths vs. Facts

βœ•

Buying online means you don't have to pay sales tax.

βœ“

Since the 2018 Wayfair decision, most states require remote sellers to collect sales tax if they exceed economic nexus thresholds ($100K in sales or 200 transactions).

βœ•

All states charge the same types of items.

βœ“

Taxability varies enormously. Some states tax groceries, clothing, and digital goods; others exempt them entirely. Always check the specific state and item category.

βœ•

Sales tax is simple β€” it's just one rate per state.

βœ“

There are 11,000+ unique jurisdictions. A single state can have hundreds of different combined rates based on county, city, and special district overlays.

βœ•

Sales tax only applies to physical products.

βœ“

Many states now tax digital goods (streaming, downloads, SaaS), certain services (repair, landscaping), and even some professional services.

Frequently Asked Questions

Which states have no sales tax?β–Ό
Alaska, Delaware, Montana, New Hampshire, and Oregon have no state-level sales tax. However, some Alaska boroughs impose local sales taxes up to ~7.5%.
What is the highest combined sales tax rate in the US?β–Ό
As of 2024, parts of Louisiana and Tennessee have combined rates reaching 9.55%. Individual jurisdictions in Alabama can exceed 11%.
Do I owe use tax if I buy something online tax-free?β–Ό
Technically, yes. Most states require residents to self-report and pay 'use tax' on out-of-state purchases where no sales tax was collected. Compliance is low but states are increasing enforcement.
What is economic nexus?β–Ό
Economic nexus is a threshold (typically $100,000 in sales or 200 transactions in a state) that triggers a remote seller's obligation to collect and remit that state's sales tax.
Are groceries taxed?β–Ό
It depends on the state. About 32 states fully or partially exempt unprepared groceries. States like Mississippi, Alabama, and South Dakota tax groceries at the full state rate.
Is clothing taxable?β–Ό
In most states, yes. However, Pennsylvania, New Jersey, and Minnesota fully exempt clothing. New York exempts clothing items under $110 each.
How does sales tax apply to digital products?β–Ό
Approximately 30 states tax digital goods (ebooks, streaming, downloads). Taxability depends on the state's definition of 'tangible personal property' and digital product classifications.
What is origin-based vs destination-based sourcing?β–Ό
Origin-based states (e.g., Texas, Pennsylvania) apply the seller's location rate. Destination-based states (majority) apply the buyer's ship-to address rate.
Do SaaS products have sales tax?β–Ό
It varies by state. About 20 states tax SaaS as either a taxable service or digital good. Others exempt it because there's no transfer of tangible property.
How do I file sales tax returns?β–Ό
Each state has its own filing frequency (monthly, quarterly, or annually) and portal. Multi-state sellers often use automated tax software (TaxJar, Avalara) to manage filings.
What's the difference between sales tax and VAT?β–Ό
Sales tax is collected only at the point of final sale. VAT (Value Added Tax), used in 160+ countries, is collected at every stage of the supply chain with credits for tax paid at each prior stage.
Can nonprofits avoid paying sales tax?β–Ό
Nonprofits are typically exempt from paying sales tax on their own purchases in most states, but must apply for exemption certificates. They generally must still collect tax on taxable items they sell.

References

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Methodology, sources & limitations

This calculator uses a published formula and the values entered in the calculator to generate the result.

Formula
Tax = Price Γ— Tax Rate; Total = Price + Tax
Jurisdiction & units
Intended for US, IN, EU, GB, AU, CA. Supports both units where applicable.
Assumptions & limitations
Results use the inputs you provide and published formulas or rate assumptions. They are estimates, not financial, tax, lending, or investment advice.
Review status
Formula and automated QA completed June 21, 2026; independent professional review is pending. Next scheduled review: September 21, 2026.

Validation sources

  • State Revenue Departments
  • Tax Foundation

Sales Tax Calculator β€” Answer & Method

Calculate sales tax amount and total price for any US state or custom rate.

Formula: Sales Tax

Tax = Price Γ— Tax Rate; Total = Price + Tax

P = Price (USD)
r = Tax Rate (%)

Example Calculation

$100 item with 8.25% tax: $8.25 tax, $108.25 total.

Important limitation

This is an estimate based on your inputs, not financial, lending, tax, or investment advice.

Key Facts

  • Five US states have no state sales tax: Alaska, Delaware, Montana, New Hampshire, Oregon.
  • Combined state and local sales tax rates can exceed 10% in some areas.

Sources & Validation

State Revenue DepartmentsTax Foundation

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Deterministic: YesAI-Generated Numbers: NoVerified: 2026-02-12

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