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Sales Tax Calculator

Calculate sales tax for all US states, add or remove sales tax from prices

Calculation Type

Select whether you want to add sales tax to a price or remove it from a total

Tax Details

Select your preferred currency
%
Enter the sales tax rate or click a state preset
$
Enter the price before sales tax

Quick Examples

Add California Tax
$100 + 8.25% tax
$108.25
Remove Texas Tax
$106.25 - 6.25% tax
$100.00
No Sales Tax
$50 + 0% tax
$50.00
Tax Amount Only
Tax on $200 at 7%
$14.00
Click any example to load the values and see the calculation

Sales Tax Calculation Result

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Enter price and tax rate to calculate
Sales tax calculation result will appear here

Price Breakdown

Understanding Sales Tax

What is Sales Tax?

Sales tax is a consumption tax imposed by state and local governments on retail sales of goods and services. It's collected by retailers at the point of sale and remitted to tax authorities.

How Sales Tax Works

  • Collection: Retailers collect tax from customers
  • Remittance: Tax is sent to state/local governments
  • Variable Rates: Rates vary by state and locality
  • Exemptions: Some items may be exempt

Sales Tax Formulas

  • Add Tax: Subtotal × (1 + Tax Rate/100)
  • Remove Tax: Total ÷ (1 + Tax Rate/100)
  • Tax Amount: Subtotal × (Tax Rate/100)

Common Exemptions

  • Food: Groceries (varies by state)
  • Medicine: Prescription drugs
  • Clothing: Some states exempt clothing
  • Services: Many services are exempt

State Tax Rates (Base)

  • No Sales Tax: AK, DE, MT, NH, OR
  • Low (Under 5%): CO, AL, GA, HI, WY
  • Medium (5-7%): Most states
  • High (Over 7%): CA, NY, TN, IL, TX

Local Sales Tax

  • Additional Tax: Cities and counties may add tax
  • Combined Rates: Can exceed 10% in some areas
  • Zip Code Lookup: Use online tools for exact rates
  • Business Impact: Affects pricing decisions

Business Considerations

  • Registration: Required for businesses selling taxable items
  • Collection: Must collect appropriate tax rates
  • Filing: Regular tax returns required
  • Nexus: Physical/economic presence triggers obligation

Online Sales

  • Remote Sales: Rules vary by state
  • Economic Nexus: Thresholds trigger obligations
  • Marketplace: Platforms may collect tax
  • Use Tax: Consumers responsible if not collected