California has the highest state sales tax rate at 7.25 percent

California's base state sales tax is 7.25 percent, the highest in the country. However, the total tax you pay at checkout is usually higher because counties and cities add their own local sales taxes on top of the state rate. In some California cities, the combined rate reaches 8.5 to 10.25 percent depending on where you shop.

Sales tax rates change when you cross state lines or move within a state. A purchase that costs $100 in one location might have $7.25 in tax, while the same purchase in a nearby county could have $8.50 or more. This matters most if you live near a state border or shop in multiple jurisdictions regularly.

Key Takeaways

  • California's state sales tax of 7.25 percent is the highest base rate in the United States, though local taxes often push the total higher.
  • The combined sales tax you actually pay includes both state and local rates, which vary by city and county within each state.
  • Several states including Tennessee, Louisiana, and Arkansas have combined rates that rival or exceed California's when local taxes are included.
  • Five states—Delaware, Montana, New Hampshire, and Oregon—have no sales tax at all, making them the lowest.

How state and local sales taxes stack together

Your receipt shows one sales tax number, but that number is really two taxes added together: the state rate plus the local rate. California's state portion is 7.25 percent. On top of that, your city or county adds between 0.25 and 2.75 percent more, depending on local needs and voter approval.

This stacking system means the "highest sales tax state" depends on whether you mean the state rate alone or the total rate you actually pay. California leads in state rate. But when you include local taxes, Tennessee, Louisiana, and Arkansas often have higher combined rates in their highest-tax cities. A purchase in Memphis, Tennessee, for example, can carry a combined rate of 9.55 percent.

States with the highest combined sales tax rates

When state and local taxes are combined, several states compete for the highest total. Tennessee's state rate is 9.55 percent before any local tax is added—higher than California's state rate alone. Louisiana's state rate is 4.45 percent, but New Orleans and other cities add local taxes that push the combined rate to 8.63 percent or higher. Arkansas's state rate is 6.5 percent, and some cities add enough local tax to reach 9.63 percent combined.

The exact total you pay depends on your specific address. Two stores in the same city might have different rates if one is in a special tax district. Before making a large purchase, check your local rate with your city or county tax assessor's office, or search online for your zip code and "sales tax rate."

States with no sales tax

Five states have no sales tax at all: Delaware, Montana, New Hampshire, and Oregon. Alaska has no state sales tax, though some cities charge local sales tax. If you live in or near one of these states, purchases made there carry no sales tax, which can make a significant difference on big-ticket items like cars or furniture.

Some people mistakenly think they can avoid sales tax by ordering online from a no-tax state. That is not how it works. You owe sales tax based on where the item is delivered, not where the seller is located. If you live in California and order from an Oregon company, you still owe California sales tax.

Why sales tax rates vary so much between states

States set their own sales tax rates based on their budget needs and tax policy. Some states rely heavily on sales tax to fund schools, roads, and services. Others use income tax or other revenue sources instead. This is why neighboring states can have very different rates.

Local governments also have the power to add their own sales tax. A city might add 1 percent to fund schools or public transit. A county might add another 0.5 percent for a specific project. These local rates stack on top of the state rate, which is why the same state can have very different totals depending on which city you shop in.

How to find your local sales tax rate

Your state's Department of Revenue or Tax Commission publishes sales tax rates by zip code. Search online for "[your state] sales tax rate" plus your zip code. Most states have a searchable database on their tax agency website.

You can also call your city or county tax assessor's office and ask for the combined state and local rate for your address. They can tell you the exact percentage and explain which taxes make up that total. This is useful if you are planning a large purchase or moving to a new area.

Frequently Asked Questions

Do I pay sales tax on groceries?

It depends on your state. Most states exempt groceries from sales tax or tax them at a lower rate than other items. Some states tax all groceries at the full rate. Check your state's tax agency website or ask a cashier whether groceries are taxed where you live.

Can I avoid sales tax by ordering online?

No. You owe sales tax based on where the item is delivered, not where the seller is located. If you live in a state with sales tax and order online, you typically owe that state's tax. The seller may collect it at checkout, or you may owe it when you file taxes.

Why does the same state have different sales tax rates in different cities?

Local governments add their own sales tax on top of the state rate. A city might add 1 percent, a county might add 0.5 percent, and a special district might add another 0.25 percent. These stack together, so the total varies by location even within the same state.

Is sales tax the same as income tax?

No. Sales tax is charged when you buy something. Income tax is charged on money you earn. Some states have both, some have only one, and some have neither. They are separate taxes that fund different government services.

Do I have to pay sales tax on used items?

Usually yes, but it depends on your state and the type of item. Most states tax used goods sold by businesses at the same rate as new goods. Private sales between individuals are often exempt. Check your state's tax agency for rules on specific items like cars or furniture.