When comparing sales tax burdens across the US, the state base rate is only part of the picture. Local county and city governments can add their own taxes on top, pushing the combined rate significantly higher. Here's a comprehensive look at the highest-tax states in 2026.
States With the Highest Average Combined Sales Tax Rates
1. Louisiana — Up to 12.95% Combined
Louisiana has a state rate of 5% (reduced from 4.45% in 2025), but when you add local taxes, some parishes push the combined rate to nearly 13%. The average combined rate across Louisiana is approximately 9.5%, one of the highest in the nation. New Orleans' combined rate sits at around 9.45%, while some rural parishes exceed 11%.
2. Tennessee — Up to 9.75% Combined
Tennessee's state base rate is 7%, one of the highest state-level rates in the country. With local add-ons, combined rates in most counties reach 9.25–9.75%. Tennessee applies its full sales tax rate to groceries (though at a reduced 4% state rate), which makes it particularly notable for daily living costs. Memphis and Nashville hover around 9.75%.
3. Arkansas — Up to 11.5% Combined
Arkansas has a 6.5% state rate and allows cities and counties to pile on additional taxes. Fort Smith has a combined rate around 9.875%, while some special tax districts have pushed totals above 11%. The average combined rate statewide is roughly 9.4%.
4. Washington State — Up to 10.6% Combined
Washington's base rate is 6.5%, but Seattle's combined rate reaches 10.35%. Some cities in King County and other areas of Puget Sound exceed 10.5%. Washington has no personal income tax, so it relies heavily on sales tax revenue, and the rates reflect that. Groceries are exempt from the state portion, but not always from local taxes.
5. Alabama — Up to 11% Combined
Alabama's state rate is a modest 4%, but local governments are some of the most aggressive taxers in the nation. Jefferson County, which includes Birmingham, has historically had combined rates above 10%. Some cities in Alabama approach 11% combined. Notably, Alabama applies full sales tax to groceries, which is unusual among high-tax states.
6. California — Up to 10.75% in Some Cities
California's statewide base is 7.25% (including a mandatory 1.25% local component). On top of that, cities and counties can add their own taxes. Los Angeles County reaches 10.25%, while some cities like Alameda, Hayward, and Long Beach have hit 10.75%. The state has over 500 different combined rates depending on city and district, making California one of the most complicated sales tax environments in the country.
Why Local Taxes Matter So Much
The difference between a state's base rate and its highest combined rate can be enormous:
- Louisiana: 5% base → up to 12.95% combined (almost 8 points of local tax)
- Alabama: 4% base → up to 11% combined (7 points of local tax)
- California: 7.25% base → up to 10.75% combined (3.5 points of local tax)
This means that checking the state rate alone gives you an incomplete picture. Always look up your specific city or zip code for the accurate rate.
What Drives High Sales Tax Rates?
States with high sales taxes typically share some characteristics:
- No personal income tax: States like Washington and Tennessee make up for it with higher sales taxes
- Local government autonomy: States that give cities and counties strong taxing powers tend to have higher combined rates
- Urban infrastructure needs: Major cities often add transit, public safety, or education levies
- Tourist economies: Resort towns frequently add local taxes knowing many buyers are out-of-state visitors
Calculate Exactly How Much Tax You Pay
Our reverse sales tax calculator lets you work backward from any total to see exactly how much you paid in tax. Select your state and adjust the local rate slider to match your city's combined rate for a precise breakdown of your purchases.