How to Calculate Sales Tax in Every US State (2026)

I Was Off by 47 Dollars on a Laptop Purchase

So I was buying a laptop online — one of those refurbished business models, listed at 849 — and I figured the tax would be somewhere around 50 bucks. I live in a state with what I thought was a 6% rate. Turns out, there's a county surcharge and a city tax layered on top, and the final number came out to 896 and change. That 47-dollar gap messed up my budget for the month, which sounds dramatic, but when you're tracking every dollar (and I do), it matters.

That experience is basically why I ended up building a sales tax reference into ProCalc.ai. Because nobody memorizes this stuff, and the rates change more often than you'd think.

The Actual State-by-State Rates for 2026

Here's the thing about sales tax in the US — there's no single rate. Every state sets its own base rate, and then counties, cities, and special districts pile on their own percentages. The table below covers the state-level base rate only. Your actual rate at checkout will almost always be higher because of local add-ons. I've seen combined rates hit 10% or more in parts of Louisiana and Tennessee.

Five states charge zero sales tax. That's right — zero.

State	Base Sales Tax Rate (%)	Notes
Alabama	4.00	High local rates common
Alaska	0.00	No state tax, but some localities charge up to ~7.5%
Arizona	5.60	Called "Transaction Privilege Tax"
Arkansas	6.50	—
California	7.25	Highest base rate in the US
Colorado	2.90	Low base, but locals add a lot
Connecticut	6.35	—
Delaware	0.00	No sales tax at all
Florida	6.00	—
Georgia	4.00	—
Hawaii	4.00	Called "General Excise Tax" — works differently
Idaho	6.00	—
Illinois	6.25	Chicago combined rate can exceed 10%
Indiana	7.00	Flat statewide, no local additions
Iowa	6.00	—
Kansas	6.50	—
Kentucky	6.00	—
Louisiana	4.45	Combined rates among the highest nationally
Maine	5.50	—
Maryland	6.00	—
Massachusetts	6.25	—
Michigan	6.00	—
Minnesota	6.875	—
Mississippi	7.00	—
Missouri	4.225	—
Montana	0.00	No sales tax
Nebraska	5.50	—
Nevada	6.85	—
New Hampshire	0.00	No sales tax
New Jersey	6.625	—
New Mexico	5.00	Called "Gross Receipts Tax"
New York	4.00	NYC combined is 8.875%
North Carolina	4.75	—
North Dakota	5.00	—
Ohio	5.75	—
Oklahoma	4.50	—
Oregon	0.00	No sales tax
Pennsylvania	6.00	Philadelphia adds 2%
Rhode Island	7.00	—
South Carolina	6.00	—
South Dakota	4.20	—
Tennessee	7.00	Combined rates can exceed 9.75%
Texas	6.25	—
Utah	6.10	—
Vermont	6.00	—
Virginia	5.30	—
Washington	6.50	No income tax, so sales tax does heavy lifting
West Virginia	6.00	—
Wisconsin	5.00	—
Wyoming	4.00	—

A few things jump out. California's 7.25% base is the highest, but Louisiana and Tennessee regularly produce the highest combined rates once you stack local taxes on. And Alaska is this weird case — no state-level tax, but Juneau and a handful of other municipalities charge their own, so you can't just assume it's tax-free.

I keep these rates updated as states publish changes, but honestly, local rates shift mid-year sometimes without much fanfare. Always double-check your specific city or county.

How to Actually Calculate It

The math itself is dead simple. It's just multiplication. But people get tripped up because they forget to combine the state rate with local rates, or they try to back out the tax from a total and do it wrong.

Let me walk through a real example. Say you're buying a couch for 1,200 in Nashville, Tennessee. The state rate is 7.00%, and the combined local rate in Nashville adds another 2.25%, bringing the total to 9.25%.

1,200 × 0.0925 = 111.00

So your total at checkout is 1,311. That's not nothing! On big purchases like furniture or appliances, the tax alone can be in the hundreds.

Now here's a scenario that confuses people — backing out the tax from a receipt total. Say your receipt says 1,311 and you know the rate was 9.25%. You don't just multiply 1,311 by 9.25%. You divide:

Pre-tax price = 1,311 ÷ 1.0925 = 1,200.00

Then the tax portion is 1,311 minus 1,200, which is 111. People mess this up constantly, and I get it, because it feels like it should just be the same multiplication in reverse. But it's not — you have to divide by (1 + rate) to extract the base price from a tax-inclusive total.

Our

handles both directions — you can enter a pre-tax amount and get the total, or enter the total and back out the tax. Either way.

Things That Catch People Off Guard

Groceries. Some states exempt groceries entirely, some tax them at a reduced rate, and some tax them at the full rate. Texas exempts most unprepared food. Illinois taxes groceries at 1% instead of the full 6.25%. Mississippi taxes groceries at the full 7%. There's no consistency, and it changes how much your weekly shopping actually costs you in ways that are hard to track without a

handy.

Clothing is another weird one. Most states tax clothing, but New York exempts items under 110 per piece, and Pennsylvania exempts most clothing entirely. So buying a 95-dollar jacket in Manhattan? No tax. A 115-dollar jacket? Taxed.

Online purchases used to be a loophole, but after the 2018 Supreme Court decision (South Dakota v. Wayfair), basically every state with a sales tax now requires online retailers to collect it. So that advantage is gone.

And then there's the question of whether you're a business. If you're reselling goods, you typically don't pay sales tax on your wholesale purchases — you collect it from the end customer instead. But you need a resale certificate, and the rules vary by state. If you're running a side business and trying to figure out your margins, our

can help you see what you're actually keeping after costs and tax obligations.

One more thing — use tax. If you buy something from a state with no sales tax (or a lower rate) and bring it back to your home state, you technically owe "use tax" on the difference. Almost nobody pays this voluntarily. But it's on the books, and some states have started enforcing it more aggressively, especially for big-ticket items like cars and boats.

When Sales Tax Matters More Than You Think

I used to think of sales tax as this small annoyance — a few bucks here, a few bucks there. But then I ran the numbers on a full year of spending.

If your household spends roughly 40,000 a year on taxable goods and services (which is pretty normal for a middle-income family), and your combined rate is 8%, that's 3,200 a year in sales tax. Over a decade, that's 32,000. That's a car. That's a chunk of a down payment. When I saw that number, I started paying a lot more attention to which purchases are taxable and which aren't.

It also matters when you're comparing the cost of living between states. A state with no income tax — like Washington or Texas — might look cheaper on paper, but their sales tax rates are high enough to partially offset that. You really need to look at the whole picture, and a

that accounts for multiple tax types is the only way to do it honestly.

If you're planning a large purchase — a car, an engagement ring, a home renovation — it's worth checking whether your state has a sales tax holiday coming up, or whether buying in a neighboring state (or online from a state with a lower rate) could save you real money. Some states run annual tax-free weekends for things like school supplies and clothing, and the savings on a big shopping trip can be in the ballpark of 50 to 100 bucks.

For budgeting purposes, I always recommend padding your estimated costs by your local tax rate before you commit to a purchase. Our

is useful here too — when something's on sale, you want to know the after-tax discounted price, not just the sticker discount. And if you're comparing financing options on a big purchase, the

can show you what the total tax-inclusive amount looks like with interest stacked on top.

So yeah — sales tax is boring until it isn't.

Do all US states charge sales tax?

No. Five states have no state-level sales tax: Alaska, Delaware, Montana, New Hampshire, and Oregon. But Alaska is a special case — while the state doesn't charge sales tax, some local jurisdictions within Alaska do. So depending on where exactly you are in Alaska, you might still pay something.

How do I find my exact combined sales tax rate?

Look up your state rate from the table above, then check your county and city rates through your state's department of revenue website. Or just use our

— plug in your location and it does the combining for you.

Is sales tax calculated on the original price or the discounted price?

The discounted price. If a 200-dollar item is marked down to 150, you pay tax on 150. Always on what you actually pay, not the original sticker.