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Free sales tax calculator.

Pick your state, add a local rate, get the tax. Or flip to reverse mode and back into the pre-tax price from a total. All 50 state base rates loaded for 2026.

$
The price before sales tax is added.
Picks up the 2026 state base rate. Add local county/city/district rates below.
%
%
Look up your specific ZIP at zip2tax.com or your state revenue site for exact local rates.
Total with tax
$108.00
$100.00 + $8.00 sales tax at 8.000%
Tax amount
$8.00
Combined rate
8.000%
State portion
$0.00
Local portion
$8.00

The math

Pre-tax amount$100.00
+ Sales tax (8.000%)$8.00
Total with tax$108.00

Forward vs reverse — which mode do you need?

Sales tax calculators get used in two opposite directions. Pick the right mode or the math won’t match.

Add tax to price (forward)

You know the pre-tax amount and want to know the total the customer pays. Use this when:

Find tax in total (reverse)

You know the total you paid (or were quoted) and want to know how much was tax vs the actual product. Use this when:

The full formulas

Forward (add):
  tax = pre_tax × rate
  total = pre_tax × (1 + rate)

Reverse (find):
  pre_tax = total ÷ (1 + rate)
  tax = total − pre_tax

2026 state sales tax base rates

State-only base rates as of 2026. Most jurisdictions add local county, city, and special-district rates on top — combined rates can run 2-6 percentage points higher than the state base.

StateBase rateNotes
Alabama4.000%Local up to 7.5%
Alaska0.000%Local only — up to 7.5%
Arizona5.600%Local up to 5.6%
Arkansas6.500%Local up to 5.125%
California7.250%Local up to 2.5%; combined up to 10.75%
Colorado2.900%Local up to 8%; combined often 7-9%
Connecticut6.350%No local sales tax
Delaware0.000%No sales tax
Florida6.000%Local up to 1.5%; capped on first $5K of single item
Georgia4.000%Local up to 4.9%
Hawaii4.000%General Excise Tax (GET); applies to nearly everything including services
Idaho6.000%Resort cities add up to 3%
Illinois6.250%Local up to 4.75%; Chicago combined 10.25%
Indiana7.000%No local sales tax
Iowa6.000%Local up to 1%
Kansas6.500%Local up to 4%
Kentucky6.000%No local sales tax
Louisiana4.450%Local up to 7%; combined often 9-12%
Maine5.500%No local sales tax
Maryland6.000%No local sales tax
Massachusetts6.250%No local sales tax
Michigan6.000%No local sales tax
Minnesota6.875%Local up to 2%
Mississippi7.000%Some cities add 1-2%
Missouri4.225%Local up to 5.875%
Montana0.000%No sales tax (some resort cities have local)
Nebraska5.500%Local up to 2%
Nevada6.850%Local up to 1.525%
New Hampshire0.000%No sales tax
New Jersey6.625%Limited local (Urban Enterprise Zones at 3.3125%)
New Mexico5.125%Local Gross Receipts Tax up to 4.3125%
New York4.000%Local up to 4.875%; NYC combined 8.875%
North Carolina4.750%Local 2-2.75%; combined 6.75-7.5%
North Dakota5.000%Local up to 3.5%
Ohio5.750%Local up to 2.25%
Oklahoma4.500%Local up to 6.5%
Oregon0.000%No sales tax
Pennsylvania6.000%Allegheny County +1%; Philadelphia +2%
Rhode Island7.000%No local sales tax
South Carolina6.000%Local up to 3%
South Dakota4.200%Local up to 2%
Tennessee7.000%Local 1.5-2.75%
Texas6.250%Local up to 2%; combined cap 8.25%
Utah4.850%Local up to 2.95%
Vermont6.000%Some cities add 1%
Virginia5.300%Local 1-1.7%; combined 6.3-7%
Washington6.500%Local up to 4.1%; Seattle combined ~10.35%
West Virginia6.000%Some cities add 1%
Wisconsin5.000%County 0.5%; some districts add up to 0.6%
Wyoming4.000%Local up to 2%
Washington DC6.000%Higher rates on alcohol, parking, hotels

Rates can change mid-year

State legislatures and local governments revise rates throughout the year. The base rates above are accurate as of 2026 but always verify with your state Department of Revenue or a real-time service like Avalara, TaxJar, or Stripe Tax for production billing.

Sales tax for service trades — what’s actually taxable

Most US states tax tangible goods but exempt or partially-exempt services. Service trades sit in a complicated middle ground that depends on the state and what specifically you’re billing for.

Common rules

This is general guidance, not tax advice. Sales tax on construction services is one of the most jurisdictionally weird parts of the tax code — consult a CPA familiar with your state’s contractor rules.

Auto-apply tax on every invoice and estimate.

Operaite’s invoicing module lets you set default tax rates per customer and automatically applies them on every quote and invoice you send — no manual sales tax math, no missed line items.

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