Sales Tax Calculator
Use this sales tax calculator calculator to understand your numbers quickly and make clearer decisions with confidence.
What Is Sales Tax?
Sales tax is a consumption tax levied at the point of sale by state and local governments in the United States. Unlike federal income taxes, sales tax policy is set entirely at the state level, creating a patchwork of rates ranging from 0% in 5 states (Oregon, Montana, New Hampshire, Delaware, and Alaska) to a combined state-plus-local rate exceeding 9.55% in Tennessee. When county, city, and special district taxes are added, some locations exceed 12%.
As a consumer, sales tax increases the out-of-pocket cost of every taxable purchase. As a business owner, correctly collecting, reporting, and remitting sales tax is a legal obligation — errors can result in audits, penalties, and back taxes. Use the sales tax calculator above to compute exact tax in any mode: add tax, reverse-extract, find the effective rate, use our all-50-state database, or calculate a full shopping cart with mixed tax items.
No Federal Sales Tax
The United States has no federal sales tax. Each state independently decides whether to impose a sales tax and at what rate. This contrasts with VAT-based countries in Europe and most of the world, where federal-level consumption taxes apply uniformly. The US system results in significant price variation across state lines.
State + Local = Combined Rate
Most US consumers pay both a state base rate and additional local taxes added by their county, city, or special district. For example, in California the state rate is 7.25%, but San Francisco adds 1.25%, making the city total 8.625%. Always use combined rates when calculating actual prices.
Not All Items Are Taxable
Sales tax exemptions vary widely by state. Many states exempt unprepared groceries and prescription drugs. Some exempt clothing (New York, Pennsylvania), manufacturing equipment, or agricultural supplies. Knowing what is and isn't taxable in your state can meaningfully reduce your effective tax burden.
US sales tax rates vary by state — from 0% in 5 states to over 9.5% combined in Tennessee. See full state-by-state table →
Sales Tax Formulas
Four formulas cover every sales tax calculation scenario — adding tax to a price, extracting the pre-tax amount, finding the effective rate, and reverse-engineering any unknown. All four modes are built into the calculator above.
① Add Sales Tax to a Price
| Variable | Meaning | Example |
|---|---|---|
| Total | Final price the consumer pays (with tax) | → $108.50 |
| Price | Pre-tax (net) price | $100.00 |
| Rate | Sales tax rate as a decimal (e.g. 8.5% = 0.085) | 0.085 |
Example: $100 item at 8.5% sales tax → Tax = $100 × 0.085 = $8.50 → Total = $108.50
② Reverse: Extract Pre-Tax Price from Tax-Inclusive Total
Example: If the total displayed price is $108.50 at 8.5% tax:
Pre-Tax = $108.50 ÷ (1 + 0.085) = $108.50 ÷ 1.085 = $100.00 pre-tax | Tax paid = $8.50
③ Find the Effective Tax Rate
Example: Paid $108.50 for a $100 item → Rate = ($108.50 ÷ $100) − 1 = 1.085 − 1 = 8.5%
④ Tax Amount Only
Shopping cart example: $500 taxable items at combined 9.25% = $46.25 tax → Grand total = $546.25
Sales Tax Rates by US State (2024)
State base rates plus average local rates (county and city combined). Use the State Lookup mode in the calculator for instant, pre-loaded computation.
| State | State Rate | Avg Local | Combined | Note |
|---|---|---|---|---|
| Oregon | 0.000% | 0.000% | 0.000% | No sales tax |
| Montana | 0.000% | 0.000% | 0.000% | No sales tax |
| New Hampshire | 0.000% | 0.000% | 0.000% | No sales tax |
| Delaware | 0.000% | 0.000% | 0.000% | No sales tax; gross receipts tax instead |
| Alaska | 0.000% | 1.820% | 1.820% | No state tax; local taxes allowed |
| Hawaii | 4.000% | 0.440% | 4.440% | Technically a GE tax, not sales tax |
| Wyoming | 4.000% | 1.360% | 5.360% | |
| Colorado | 2.900% | 4.870% | 7.770% | Home rule cities can set own rates |
| New York | 4.000% | 4.520% | 8.520% | NYC metro total often ~8.875% |
| California | 7.250% | 1.570% | 8.820% | Highest base state rate; local varies widely |
| Florida | 6.000% | 1.080% | 7.080% | No income tax; relies heavily on sales tax |
| Texas | 6.250% | 1.950% | 8.200% | Max combined local cap: 8.25% |
| Tennessee | 7.000% | 2.550% | 9.550% | Highest combined avg in nation |
| Louisiana | 4.450% | 5.070% | 9.520% | 2nd highest combined avg |
| Washington | 6.500% | 2.670% | 9.170% | WA has no income tax |
| Illinois | 6.250% | 2.590% | 8.840% | Grocery tax 1%; drugs 1% |
| Pennsylvania | 6.000% | 0.340% | 6.340% | Clothing exempt |
| Michigan | 6.000% | 0.000% | 6.000% | No local sales tax |
| Ohio | 5.750% | 1.490% | 7.240% | |
| Virginia | 4.300% | 1.330% | 5.630% | Groceries taxed at 1% |
Sources: Tax Foundation 2024, individual state DOR websites. Local rates are population-weighted averages; your specific city/county may differ.
Tax-Exempt Items by Category
What's taxable varies dramatically by state — this is one of the most commonly misunderstood aspects of US sales tax. Key exemptions to know:
| Category | States With Full Exemption | States Taxing Partially | Details |
|---|---|---|---|
| Unprepared Groceries | 30+ states | ~13 states | Most states exempt basic food; exceptions include AL, MS, SD. Some tax at reduced rate (ID 6%, VA 1%, IL 1%, MO 1.225%) |
| Prescription Drugs | All 45 states with sales tax | None | Prescription drugs are exempt universally in all states that have sales tax |
| OTC Medications | ~18 states | ~27 states | Over-the-counter drugs treated differently than prescriptions by most states; no consistent rule |
| Clothing (general) | PA, NJ, NY (basic), MN (non-luxury) | Most states | NY/NJ exempt clothing under $110/item; PA exempts all clothing; MN exempts non-fur clothing |
| Digital Goods & Software | ~28 states tax SaaS/digital | ~17 states | Rapidly evolving area. Sales of SaaS, streaming, and digital downloads increasingly taxed post-Wayfair ruling |
| Manufacturing Equipment | ~35 states have exemptions | Varies | Most states exempt machinery used directly in manufacturing from sales or use tax |
| Agricultural Supplies | ~40 states have ag exemptions | Varies | Feed, seeds, livestock, and farm equipment commonly exempt in farming states |
| School Supplies (Tax Holidays) | Varies annually | Varies | Many states hold annual "Sales Tax Holidays" (FL, TX, TN) on clothing and school supplies — typically 2–3 day events |
Sales Tax vs VAT: Key Differences
The US sales tax system differs fundamentally from the Value-Added Tax (VAT) used in Europe, Canada (GST/HST), Australia (GST), and most other countries. Understanding the distinction matters for international business and travel price comparison.
| Feature | US Sales Tax | VAT (Europe/World) |
|---|---|---|
| Tax level | State & local only (no federal) | National government |
| Where collected | Only at final point of sale (retail) | At every stage of production chain |
| Price display | Excluded from advertised price — added at checkout | Included in displayed price (tax-inclusive) |
| Admin burden | Simpler for businesses (one-time collection) | Complex (input tax credits at each stage) |
| Rate variation | Widely variable (0%–12%+ by jurisdiction) | Single national rate (UK: 20%, Germany: 19%) |
| Gray market prevention | Less effective — tax only at final sale | Built-in audit trail through value chain |
| Business input recovery | No recovery mechanism for business purchases | Businesses recover VAT paid on inputs |
| Who pays effectively | Consumers (and some business final purchases) | Consumers — value added at each stage |
6 Legal Sales Tax Savings Strategies
Shop During Sales Tax Holidays
Florida, Texas, Tennessee, and ~16 other states offer annual tax holidays on clothing, school supplies, computers, and disaster preparedness items. During these 2–3 day windows, eligible purchases are fully exempt. Florida 2024 had 11 separate holidays saving shoppers millions annually.
Purchase Business Equipment Tax-Exempt
If you own a manufacturing, agricultural, or qualifying business, most states allow purchases of equipment directly used in production to be made tax-exempt using a tax exemption certificate. Filing incorrectly can expose you to use tax audits — always get the exemption certificate before purchase.
Understand Use Tax Obligations
When you buy something online from a merchant with no nexus in your state, sales tax may not be collected — but you typically still owe "use tax" at your state's rate. Post-Wayfair (2018), states can require online retailers to collect sales tax if they exceed $100K in sales or 200 transactions annually in that state.
Choose the Right Purchase Location
For large purchases (cars, boats, RVs, major electronics), buying across state lines can save significantly. Oregon's 0% vs California's 8.82%+ means a $35,000 car purchase saves $3,087 — though you may owe use tax in your home state when registering the vehicle.
Resale Certificates for Businesses
If you're a retailer purchasing goods to resell, you can provide vendors a resale certificate to buy inventory sales-tax-free. You collect tax from your customers instead. This avoids the "double taxation" problem and is required for proper sales tax compliance and accounting.
Optimize Your Supply Chain for Nexus
Businesses with economic nexus in many states face complex multi-state sales tax compliance. Using sales tax automation software (TaxJar, Avalara, Vertex) can save thousands in penalty exposure. Structure your business to minimize nexus states where legally permissible — reducing filing complexity.
Frequently Asked Questions
How do I calculate sales tax?
Tax Amount = Price × Tax Rate. Total = Price × (1 + Tax Rate). Example: $100 item at 8.5% → Tax = $100 × 0.085 = $8.50 → Total = $108.50. The calculator above handles all 5 calculation variants including reverse-extraction and finding the rate from price/total pairs.
Which states have no sales tax?
Five states have zero state sales tax: Oregon, Montana, New Hampshire, Delaware, and Alaska. However, Alaska allows local governments to levy sales taxes, creating a weighted average of 1.82% in practice. Delaware uses a gross receipts tax on businesses instead. If you're making a large purchase, shopping in Oregon with 0% combined rate maximizes savings.
How do I remove sales tax from a price (reverse calculation)?
Pre-Tax Price = Total Price ÷ (1 + Tax Rate). Example: $108.50 total at 8.5% tax → $108.50 ÷ 1.085 = $100.00 pre-tax. Tax amount = $108.50 − $100.00 = $8.50. Use Mode 2 (Reverse) in the calculator above to instantly extract the pre-tax price from any tax-inclusive total.
What is the highest sales tax in the US?
By combined (state + local) average rate, Tennessee is first at 9.55%, followed by Louisiana (9.52%), Arkansas (9.47%), Washington (9.38%), and Alabama (9.24%). For specific cities, rates can exceed these averages — some Louisiana parishes exceed 12% combined. California's highest city rate is 10.75% (some districts in Los Angeles County).
Do I have to pay sales tax on online purchases?
Post-Wayfair ruling (2018 Supreme Court): yes, in most cases. If an online retailer exceeds $100,000 in sales or 200 transactions in your state, they must collect your state's sales tax even without physical presence. Most major retailers (Amazon, Walmart, Target) collect sales tax in all states with a sales tax. For small out-of-state merchants who don't collect, you technically owe "use tax" to your state at the same rate.
Are groceries taxed in the US?
It depends on the state. Approximately 30 states fully exempt unprepared groceries from sales tax. States that still tax groceries include Alabama (4%), Mississippi (7%), and South Dakota (4.5%). Others tax at reduced rates: Idaho (6%), Virginia (1%), Illinois (1%), and Missouri (~1.225%). Restaurant "prepared food" is taxable in nearly all states even where groceries are exempt.
Related Financial Calculators
- Percentage Discount Calculator →
Calculate sale prices, discount amounts, and percentage off. Combine with the sales tax calculator: apply the discount first, then compute sales tax on the discounted (lower) price for accurate final cost.
- Profit Margin Calculator →
Business owners: include sales tax in your pricing analysis. Selling price must account for collected sales tax (which you remit to the state, not keep). Calculate margins on your actual net revenue after tax remittance.
- Markup Calculator →
Set prices that achieve your target markup after factoring in sales tax collected. Ensure your pricing strategy accounts for both your margin goals and the tax obligations you'll remit to state revenue departments.
- Annual Income Calculator →
Understand your real purchasing power after income taxes and sales tax. A $60K salary in Oregon has more real spending power than the same salary in Tennessee, where combined state and local sales taxes approach 9.55%.
- CAGR Calculator →
Sales tax affects investment decisions too: buying in lower-tax states for big purchases means more money available for investment. Calculate the CAGR impact of reinvesting sales tax savings over long time horizons.
- Compound Interest Calculator →
The sales tax you pay is money that cannot compound for you. On a $50,000 car purchase, 9.5% sales tax = $4,750 in tax. If that $4,750 was invested at 8% CAGR for 20 years, it would grow to $22,144 — the true cost of high-tax jurisdictions.