Free Sales Tax Calculator

Sales Tax Calculator —
Calculate Tax Amount Instantly

Calculate sales tax amount, total price, or reverse-calculate pre-tax price. Supports all tax rates worldwide.

✓ Add Tax ✓ Remove Tax ✓ Compare Rates ✓ Free

Sales Tax Calculator

Choose a mode and enter your values to calculate

Add Tax to Price
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Enter quantity for total order calculations.

Remove Tax (Reverse Calculate)

Enter the tax-inclusive total price to find the original pre-tax price.

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Compare Multiple Rates
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Tax Calculation
Instant

Ready to Calculate

Enter your price and tax rate to calculate instantly

Total Price
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Tax Amount
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Pre-Tax Price
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Tax Rate
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applied rate
Effective Tax %
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of total price
Price Breakdown
Pre-tax
Tax
Pre-tax
Tax

Add Tax Instantly

Enter any pre-tax price and rate to get the exact tax amount and total price with a visual breakdown.

Reverse Tax Calculator

Remove tax from a total price to find the original pre-tax amount. Essential for bookkeeping and expense reporting.

Compare 3 Rates

See tax impact side-by-side for up to three different rates — useful for comparing jurisdictions or planning.

Quantity & Order Totals

Calculate sales tax for multiple units with full per-unit and order total breakdown for invoicing.

How It Works

Calculate Sales Tax in Seconds

Three modes for every sales tax calculation scenario.

1
Step 01

Choose Your Mode

Select "Add Tax" to calculate total from pre-tax price, "Remove Tax" to reverse-calculate pre-tax from total, or "Compare Rates" to see multiple rates at once.

2
Step 02

Enter Price & Rate

Input your price and tax rate (or use a preset like NY 8.875% or EU VAT 20%). Add quantity for order-level calculations.

3
Step 03

Get Instant Results

See tax amount, total price, effective tax rate, and a visual bar showing the price breakdown. Copy to use in invoices or receipts.

About This Calculator

Sales Tax Explained

Everything you need to know about calculating, adding, and removing sales tax.

How to Calculate Sales Tax

Adding tax is straightforward: Tax Amount = Price × (Tax Rate ÷ 100). Total Price = Price + Tax Amount. For example, a $100 item at 8% tax has $8 tax and a $108 total.

To reverse-calculate pre-tax price from a total: Pre-Tax Price = Total ÷ (1 + Tax Rate ÷ 100). A $108 total at 8% tax = $108 ÷ 1.08 = $100 pre-tax.

US Sales Tax Rates

Sales tax in the US is set at the state and local level — there is no federal sales tax. Rates range from 0% (Oregon, Montana, New Hampshire, Delaware, Alaska) to over 10% in some combined state/city/county rates. The national average combined rate is approximately 7.12% (2024).

VAT vs. Sales Tax

Sales tax is collected only at the final point of sale (retail). VAT (Value Added Tax) is collected at every stage of the supply chain but ultimately paid by the end consumer. Most countries outside the US use VAT. Common VAT rates: UK 20%, EU average 21%, Australia GST 10%, Canada GST 5%.

Why Use a Sales Tax Calculator?

Avoid errors in invoicing, pricing, and financial reporting.

Accurate Invoicing

Ensure every invoice shows the correct pre-tax price, tax amount, and total. One click for any rate or jurisdiction.

Multi-Jurisdiction Pricing

Selling across states or countries? Compare three different tax rates simultaneously to price products correctly in each market.

Expense Reconciliation

Use reverse tax calculation to extract the pre-tax amount from receipts for clean bookkeeping and expense reporting.

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FAQ

Sales Tax Questions Answered

Common questions about calculating and understanding sales tax.

How do I calculate sales tax on a price?

Multiply the pre-tax price by the tax rate divided by 100. Tax = Price × (Rate ÷ 100). For a $150 purchase at 7% tax: $150 × 0.07 = $10.50 tax, for a total of $160.50. To get a percentage shortcut: a 7% tax means the total is 107% of the original price, so multiply by 1.07.

What is the average sales tax in the US?

The combined state and local sales tax rate in the US averages approximately 7.12% as of 2024, according to the Tax Foundation. State rates range from 0% (five states have no sales tax) to 7.25% (California base rate). Combined with local rates, some areas in Tennessee and Louisiana exceed 10%. There is no federal sales tax in the US.

How do I reverse-calculate pre-tax price from a total?

Use the formula: Pre-Tax Price = Total Price ÷ (1 + Tax Rate ÷ 100). For example, if you paid $162 and the tax rate was 8%: $162 ÷ 1.08 = $150 pre-tax. The tax amount was $162 – $150 = $12. This is essential for extracting pre-tax values from receipts for bookkeeping.

Is sales tax the same as VAT?

No. Sales tax is collected only at the point of final sale and is used primarily in the US. VAT (Value Added Tax) is collected at each stage of production and distribution but ultimately borne by the consumer — it's used in over 170 countries. While both result in the consumer paying tax, VAT is more complex for businesses to administer because they must track input tax credits. For end consumers, the math for calculating total cost is the same for both.

Which states have no sales tax?

Five US states have no state-level sales tax: Oregon, Montana, New Hampshire, Delaware, and Alaska. However, Alaska allows local jurisdictions to impose sales taxes, so some areas within Alaska do have local sales tax. If you're selling to customers in these states, you generally don't collect state sales tax, though economic nexus rules and marketplace facilitator laws may still apply.