Sales Tax Calculator 2026 β State & Local Rates by State
Regulatory Framework & Legal Basis
- South Dakota v. Wayfair β Online Sales Tax NexusU.S. Supreme Court
- State Revenue Codes (Vary by State)State Departments of Revenue
- Streamlined Sales and Use Tax Agreement (SSUTA)Streamlined Sales Tax Governing Board
Sales Tax Calculation
Select your state and price to calculate sales tax or extract tax from a receipt total.
Itemized Receipt Breakdown
State Sales Tax Comparison ($100.00 Purchase)
See how much tax you would pay for this exact purchase across different US states.
| States with 0% State Sales Tax | ||
|---|---|---|
| State | Tax Rate | Tax on $100.00 |
| Delaware | 0.0% | $0.00 |
| Montana | 0.0% | $0.00 |
| New Hampshire | 0.0% | $0.00 |
| Oregon | 0.0% | $0.00 |
| Alaska | 0.0% | $0.00 |
| States with Highest Combined Rates | ||
|---|---|---|
| State | Combined Rate | Tax on $100.00 |
| Louisiana | 9.55% | $9.55 |
| Tennessee | 9.55% | $9.55 |
| Arkansas | 9.44% | $9.44 |
| Washington | 9.38% | $9.38 |
| Alabama | 9.29% | $9.29 |
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When to Use This Calculator
Everyday financial situations where this tool gives you fast, accurate clarity:
Add Sales Tax to Pre-Tax Sticker Price
Quickly find your exact checkout total before heading to the cash register or online shopping cart.
Reverse Tax: Extract Tax from Receipt
Work backwards from a total credit card charge to find the net purchase price and the exact tax paid.
Compare Rates Across All 50 States
See how state and county rates differ between high-tax states like California and zero-tax states like Oregon.
Account for Coupons & Quantity
Apply percentage discounts and multi-item quantities to calculate tax on the true discounted taxable amount.
How It Works
EffectiveTaxRate = StateBaseRate + LocalDistrictRate (or CustomRate%)
NetTaxableAmount = (ItemPrice Γ Quantity) Γ (1 - DiscountRate%)
SalesTaxOwed = NetTaxableAmount Γ EffectiveTaxRate
TotalReceiptAmount = NetTaxableAmount + SalesTaxOwed
NetTaxableAmount = TotalAmountPaid / (1 + EffectiveTaxRate)
SalesTaxIncluded = TotalAmountPaid - NetTaxableAmount
StatePortion = SalesTaxOwed Γ (StateBaseRate / EffectiveTaxRate)
LocalPortion = SalesTaxOwed Γ (LocalDistrictRate / EffectiveTaxRate)
New Hampshire (NH), Oregon (OR), Montana (MT), Delaware (DE), and Alaska (AK) feature 0% statewide tax (Alaska permits local municipal option taxes).
Step-by-Step Example
- Pre-Tax Subtotal: $100.00
- State Sales Tax (7.25%): $7.25
- Local & County Tax (1.63%): $1.63
- Total Price: $108.88 (Sales Tax Owed: $8.88)
- Pre-Tax Subtotal: $100.00
- Total Sales Tax (8.20%): $8.20
- Total Price: $108.20
- Pre-Tax Subtotal: $100.00
- Total Sales Tax: $0.00
- Total Price: $100.00 ($8.88 saved compared to California!)
- Net Price: $100 / 1.0825 = $92.38
- Tax Extracted: $7.62
Frequently Asked Questions
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