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Houston, TX vs San Diego, CA: sales tax compared

Quick answer

Houston, TX is the higher-tax metro at 8.25%, versus 7.75% in San Diego, CA. The 0.5% gap works out to $0.50 on a $100 purchase, $5.00 on $1,000 and $125.00 on a $25,000 purchase.

Rate gap
0.5%Percentage points, combined rate
Extra tax on $1,000
$5.00Paid in Houston
Extra tax on $25,000
$125.00Vehicle-sized purchase

Houston, TX

Harris County

Verified against state table

8.25%

Combined rate · ranked #36 of 94 covered metros

Sales tax rate composition for Houston, TX: 6.25% Texas state, 1% City of Houston, 1% Metropolitan Transit Authority of Harris County, totalling 8.25%.
Jurisdiction breakdown for Houston
LevelJurisdictionRate
stateTexas state6.25%
cityCity of Houston1%
special districtMetropolitan Transit Authority of Harris County1%
Population
2,314,157
Median household income
$62,894

Texas caps combined local rates at 2%, and Houston uses all of it — 1% city plus 1% METRO — so no additional district can be layered on.

Source: Texas Comptroller of Public Accounts · rates as published for 2026-01-01

Full Houston sales tax page

San Diego, CA

San Diego County

Verified against state table

7.75%

Combined rate · ranked #51 of 94 covered metros

Sales tax rate composition for San Diego, CA: 7.25% California state (incl. mandatory local), 0.5% San Diego County TransNet and countywide districts, totalling 7.75%.
Jurisdiction breakdown for San Diego
LevelJurisdictionRate
stateCalifornia state (incl. mandatory local)7.25%
special districtSan Diego County TransNet and countywide districts0.5%
Population
1,381,162
Median household income
$98,657

California's 7.25% base already bundles a 1.25% mandatory local share; only the district add-ons vary, and San Diego city carries fewer of them than most large California cities.

Source: California Department of Tax and Fee Administration · rates as published for 2026-01-01

Full San Diego sales tax page

How the difference is calculated

Same arithmetic the calculator on every page runs.

Each combined rate is the sum of its listed state, county, city and special-district components — no rounding is applied before the total. The dollar gap is the rate difference (0.5%) applied to the pre-tax amount: 0.5% of $1,000 is $5.00. Neither figure includes product-specific exemptions; groceries, clothing and digital goods can be taxed at a different rate or not at all, which is covered on each state's rules page.

Questions people ask

Direct answers to the questions this comparison raises.

Which has a higher sales tax rate, Houston or San Diego?

Houston, TX at 8.25%, versus 7.75% in San Diego, CA.

How much more sales tax would I pay in Houston on a $1,000 purchase?

About $5.00 more, and roughly $125.00 more on a $25,000 vehicle-sized purchase.

Why do Houston and San Diego have different rates?

The state share is 6.25% in TX and 7.25% in CA. The rest comes from county, city and special-district increments stacked on top, which are set locally and listed in full on this page.

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