US Sales Tax Calculator

About US Sales Tax Calculator

How Is Sales Tax Calculated?

The two formulas are straightforward:

Adding tax: Total = Price x (1 + Tax Rate)

Removing tax: Pre-Tax Price = Total / (1 + Tax Rate)

Worked example (adding): A $499.99 laptop in Texas (6.25% state + 2% local = 8.25% combined):

• Tax: $499.99 x 0.0825 = $41.25
• Total: $499.99 + $41.25 = $541.24

Worked example (removing): A receipt shows $541.24 total in Texas (8.25%):

• Pre-tax price: $541.24 / 1.0825 = $499.99
• Tax paid: $541.24 - $499.99 = $41.25

The reverse calculation is useful for expense reports, bookkeeping, and receipt reconciliation when you only have the final total.

US State Sales Tax Rates (2025)

State-level base rates only. Most states also have county and city taxes that add 1-5% on top. Five states charge no sales tax at all.

Highest Rate States	State Rate	Typical Combined Rate
California	7.25%	8.5 - 10.75%
Indiana	7.00%	7.00% (no local)
Mississippi	7.00%	7.00 - 8.00%
Tennessee	7.00%	9.0 - 9.75%
Minnesota	6.875%	7.0 - 8.875%
Nevada	6.85%	7.6 - 8.375%
New Jersey	6.625%	6.625% (no local)

No Sales Tax States	Notes
Alaska	No state tax, but some localities charge up to 7.5%
Delaware	No sales tax at any level
Montana	No sales tax; some resort taxes in tourist areas
New Hampshire	No sales tax; 9% meals and rooms tax
Oregon	No sales tax at any level

State vs Local vs Combined Rates

The rate you actually pay at checkout is the combined rate (state + county + city + special district). This varies widely even within a single state:

Location	State	Local	Combined
Los Angeles, CA	7.25%	2.25%	9.50%
Chicago, IL	6.25%	4.75%	10.25%
New York City, NY	4.00%	4.50%	8.875%
Houston, TX	6.25%	2.00%	8.25%
Seattle, WA	6.50%	3.75%	10.25%
Portland, OR	0%	0%	0%

Use the state rate from the built-in table as a starting point, then add your local rate for an accurate calculation. Your local rate is printed on receipts or available on your state's Department of Revenue website.

What Is Taxable?

Sales tax rules vary by state, but general patterns:

Category	Typically Taxable?	Common Exceptions
Electronics, clothing, furniture	Yes (in most states)	Clothing exempt in PA, NJ, MN, NY (under $110)
Groceries (unprepared food)	No (in most states)	Taxable in AL, AR, HI, ID, IL, KS, MS, MO, OK, SD, TN, UT, VA, WV
Prepared food / restaurants	Yes	Some states apply a lower rate
Prescription medications	No (all states)	OTC medications taxable in most states
Digital goods (software, streaming)	Varies widely	About 30 states tax digital goods
Services (haircuts, repairs)	Varies widely	Most states exempt services; HI, NM, SD tax broadly
Vehicles	Yes	Tax often calculated on price minus trade-in

Sales Tax on Large Purchases

Sales tax becomes a significant cost on big-ticket items:

Purchase	Price	Tax at 6%	Tax at 8%	Tax at 10%
Smartphone	$1,000	$60	$80	$100
Laptop	$2,000	$120	$160	$200
Furniture set	$5,000	$300	$400	$500
Used car	$20,000	$1,200	$1,600	$2,000
New car	$40,000	$2,400	$3,200	$4,000
Boat/RV	$80,000	$4,800	$6,400	$8,000

Some states cap vehicle sales tax or offer tax credits for trade-ins. A few states (Montana, Oregon) are popular for vehicle registration specifically because of zero sales tax.

Sales Tax vs VAT

US sales tax is charged once at the point of sale to the end consumer. Value Added Tax (VAT), used in the UK, EU, and most other countries, is collected at every stage of production. The key practical difference: US prices are displayed before tax (you add it at checkout), while VAT-inclusive prices show the final amount on the shelf. For VAT calculations, use the VAT calculator.

Sales Tax on Online Purchases

Since the 2018 Supreme Court ruling in South Dakota v. Wayfair, states can require online retailers to collect sales tax if they have "economic nexus" in the state (typically $100,000 in sales or 200 transactions per year). In practice, this means most online purchases from major retailers now include sales tax based on your shipping address. Small sellers below the threshold may not collect tax, but technically buyers owe "use tax" on those purchases.

As of 2026, all 45 states that levy a general sales tax have adopted economic nexus rules following Wayfair, and most have dropped the 200-transaction count in favour of a pure dollar threshold (commonly $100,000 or $500,000 in annual sales). The Tax Foundation and the Sales Tax Institute both track state-by-state changes as legislatures tweak thresholds and marketplace facilitator rules.

How Sales Tax Holidays Work

A sales tax holiday is a short window, usually a weekend, when a state waives sales tax on specific items. As of 2026, around 18 states run at least one holiday a year. The most common types:

Holiday Type	Typical Items Covered	Price Caps
Back-to-school	Clothing, school supplies, computers	$100 per clothing item, $750-$1,500 per computer
Energy Star / appliances	Refrigerators, washers, HVAC units	$1,500-$3,000 per appliance
Emergency preparedness	Generators, flashlights, batteries	$60-$3,000 depending on item
Second Amendment	Firearms, ammunition, hunting gear	Varies by state (MS, LA, SC)

Florida, Texas, and Virginia run the largest programmes. Texas alone estimates roughly $140 million in consumer savings during its three annual holidays, per the Texas Comptroller's office. Holidays usually do not cover the local portion of the combined rate - only the state portion waives. Big retailers often run competing promotions the same weekend, so the actual saving can be smaller than the headline rate would suggest.

How to Find Your Exact Combined Rate

The built-in table gives you the state base rate. To get the exact rate charged at a specific address, three authoritative sources beat any third-party aggregator:

• State Department of Revenue lookup. Every state with a sales tax runs a free address-based lookup. Type in the street address and the system returns the combined rate plus the breakdown by jurisdiction (state, county, city, special district).
• Streamlined Sales Tax (SST) member states. 24 states participate in SST, which publishes a single rate database updated monthly. Useful if you sell across multiple states.
• Avalara or TaxJar free rate lookup. Private services mirror the state data and display the breakdown alongside mapping of the ZIP+4 boundary, which is useful because a single ZIP code can straddle multiple tax jurisdictions.

ZIP-only lookups can be wrong by up to 2 percentage points where a ZIP crosses city boundaries. For a high-value purchase (vehicle, jewellery, appliance) it is worth checking by full street address rather than ZIP alone.

Sales Tax vs Use Tax

Use tax is sales tax's mirror image. If you buy something from an out-of-state seller that did not collect sales tax, your home state still expects you to pay use tax at the same rate. In practice, consumer use tax is the single most under-reported state tax in the US - the Federation of Tax Administrators estimates compliance rates below 2% for individuals. States recover some of it through:

• Income tax line items. 27 states include a use tax line on the state income tax return, often with a safe-harbour lookup table keyed to income.
• Business audits. Corporate use tax audits routinely find unpaid tax on equipment, software licences, and out-of-state purchases.
• Vehicle and boat registration. At registration, states verify sales tax was paid on the purchase; if not, use tax is collected before titling.

Common use-tax triggers for individuals include used cars bought out of state, art or antiques purchased while travelling, and supplies bought from small out-of-state vendors that fall below Wayfair thresholds.

Common Sales Tax Mistakes

• Using the state rate instead of the combined rate. On a $30,000 car in Los Angeles, the gap between the 7.25% state rate and the 9.5% combined rate is $675.
• Assuming groceries are always exempt. 13 states still tax some or all groceries. Alabama fully taxes groceries at the standard rate; Mississippi charges 7%; Tennessee charges 4% on food. Check the state before budgeting.
• Reverse-calculating after a discount. If a receipt shows a $100 item, a $20 discount, and an $8 tax, divide the tax by the post-discount amount ($80), not the original price. Coupon versus rebate also matters - manufacturer rebates typically do not reduce the taxable base, store coupons usually do.
• Forgetting tax on shipping. Most states tax shipping when the underlying goods are taxable. Exceptions include MA, CA, and OK where separately-stated shipping is usually exempt.
• Treating digital products as untaxed. About 30 states tax streaming subscriptions, e-books, and downloaded software. Chicago even charges a separate "amusement tax" on streaming.

For auto purchases where sales tax rolls into the loan, the auto loan calculator handles this automatically. To figure out sale prices before tax, the discount calculator computes percentage and dollar-off discounts. For UK purchases, the VAT calculator handles the equivalent 20% rate.

All calculations run in your browser. No data is stored or sent anywhere.

Sources

• Tax Foundation - 2026 State and Local Sales Tax Rates
• Sales Tax Institute - State Rates and Boundary Files
• South Dakota v. Wayfair, Inc. - US Supreme Court opinion (2018)
• Streamlined Sales Tax Governing Board - rate database
• Tax Foundation - 2026 State Tax Changes Taking Effect January 1
• Texas Comptroller - Sales Tax Holidays overview
• Federation of Tax Administrators - state tax compliance data