Sales Tax
Sales tax is a percentage-based tax that a government charges on the sale of goods and certain services, collected by the seller at checkout and paid over to the state or local tax authority. The customer pays it, but the business is the one on the hook for collecting and sending it in.
In the U.S., there’s no federal sales tax. Never has been. States decide on their own whether to charge one, and cities or counties often stack their own rate on top.
How does sales tax actually work?
A store adds sales tax to the price of an item, collects it along with the payment, then holds onto that money until it’s time to file a return. At that point, it gets sent to the state.
It’s called an indirect tax because the person paying it isn’t the one sending it to the government. Income tax works the opposite way – you pay the IRS directly. With sales tax, the retailer sits in the middle.
How do you calculate sales tax?
Multiply the price by the tax rate. That’s really all there is to the math.
Say a state’s rate is 6% and someone buys a $50 jacket. The tax comes out to $3, so the total at checkout is $53. Where it gets messy is figuring out which rate applies, since local add-ons and product-specific rules can change the number depending on what’s being sold and where.
Why isn’t the rate the same everywhere?
Because almost nowhere sets just one rate. States pick a base number, then counties, cities, and sometimes special districts pile their own percentage on top of it. Drive across a city line and the total rate can shift.
For anything shipped, most states go by a destination-based rule – meaning the rate depends on where the package lands, not where the seller is sitting. A company shipping nationwide has to track the rate at every delivery address, not just its own.
Which states don’t charge sales tax?
Five states skip a statewide sales tax entirely:
- Alaska
- Delaware
- Montana
- New Hampshire
- Oregon
Alaska’s a bit of an exception, though – while there’s no state-level tax, some Alaskan cities and boroughs charge their own local sales tax. The other four have no general tax at any level, which is exactly why border towns in those states see so much cross-state shopping traffic.
What items are taxable, and what’s exempt?
Most tangible goods get taxed by default, and states carve out exceptions from there. Groceries, prescription medication, and sometimes clothing are common exemptions – but the specifics differ enough from state to state that nothing here is universal.
Services are murkier. Some states barely tax services at all. Others tax a long list of them, covering everything from equipment repairs to streaming subscriptions. This patchwork is a big part of why multi-state sellers find tax sales compliance so frustrating.
What’s the difference between sales tax and use tax?
They share a rate, but not a trigger. Sales tax gets collected when the seller has a tax obligation in the buyer’s state. Use tax covers the gap when that doesn’t happen – say, a shopper buys from an out-of-state retailer who never collected anything. Technically, that buyer owes use tax straight to their home state, though it rarely gets enforced on individual purchases the way they does.
Is sales tax the same as VAT?
No, and the difference matters if you’re comparing tax systems internationally. A value-added tax (VAT), common outside the U.S., gets collected at every stage of production – each business pays tax on the value it adds, then passes that cost forward. They only shows up once, at the final sale to the end customer. Same general idea, very different mechanics.
Who’s required to collect it?
A business needs to collect sales tax once it has nexus in a state – meaning a strong enough connection there, whether through a physical location or hitting a sales threshold. From there, it typically registers for a permit, starts collecting on taxable sales, and files returns on whatever schedule the state assigns.
Where does the money actually go?
States and cities lean on tax sales heavily to fund things like schools, roads, and police departments. It’s one of the biggest slices of state and local tax revenue in the country – which explains why states don’t take missed collections or late filings lightly.
