Sales tax in Yuma County, Arizona
There is no single sales tax rate in Yuma County. It runs from 6.712% to 10.712% depending on the exact address, because cities and special districts inside the county levy their own on top of the 5.6% state rate. The 5.6% state rate applies everywhere in the county; everything above that depends on where you are standing.
What is the sales tax rate in Yuma County?
| Arizona state rate | 5.6% |
|---|---|
| Yuma County rate | 1.112% |
| Lowest combined rate in the county | 6.712% |
| Highest combined rate in the county | 10.712% |
The two combined figures are the lowest and highest totals found anywhere inside the county. They are not a state rate plus a county rate added together, and adding the rows above will not reproduce them, because cities and special districts levy in between.
Why the rate here is not the whole story
Arizona has no sales tax in the strict sense. It levies a transaction privilege tax, or TPT, on the seller for the privilege of doing business, and the seller normally passes it on at the register, so it works like a sales tax for a buyer. The state charges 5.6 percent on retail, Yuma County adds 1.112 percent, and cities add their own on top, so a single rate for the whole county does not exist. The floor of 6.712 percent is unincorporated county, outside any city. The ceiling of 10.712 percent is at San Luis, where the city adds 4 percent. Sales on tribal land report the same state and county rate under the department's reservation region codes, but a tribe may levy its own tax that the department does not collect or publish, so the total there can be higher than the ceiling shown. The department publishes the state and county component in one table and the city component in another and never publishes a combined figure for a location, so the ceiling here is those two published figures added rather than a rate read off the page. Confirm an address on the department's own lookup before charging it.
How do I find the exact rate for an address in Yuma County?
Because the rate changes within the county, an address is the only way to get it right. Use Arizona's own lookup. A vendor's calculator is not the state speaking.
Who has to collect sales tax in Yuma County?
A seller with a physical presence in Arizona collects at the rate for the address where the sale takes place. A remote seller collects once it passes Arizona's economic nexus threshold, which is a separate question from the rate and is covered on our sales tax nexus checker. Marketplace facilitators generally collect on behalf of their sellers.
How does Yuma County compare?
See Arizona sales tax for the statewide picture, including the average local rate and what is exempt. Property tax is a separate tax with separate rules: property tax in Yuma County.
Sources
- Yuma County rates: Arizona Department of Revenue, Transaction Privilege and Other Tax Rate Tables, edition effective September 1 2026, Table 1 state and county rates and Table 2 municipal rates, https://azdor.gov/sites/default/files/document/TPT_RATETABLE_09012026.pdf, cross checked against the department's machine readable All Business Classifications Tax Rate Table for the same month, https://azdor.gov/sites/default/files/document/TPT_RATETABLE_ALL_09012026.csv
- Collected and verified September 9, 2026. Confidence: P on the rate components, S on the range (P read on a primary agency page, S strong but indirect, U unverified).