In Cache County, dealer purchases generally use the purchase locality’s combined rate; private purchases use the registration address. The unincorporated combined rate on the Q3 2026 chart is 7.00%. On $30,000, that is $2,100.00 before title $6, registration $44, age-based fees, APC $3, and corridor $0. Utah has no family sales-tax exemption.
How much is vehicle tax here?
State component 4.85% sits inside the combined chart rates. Cache is not on the corridor fee list—corridor fee is $0. Uniform age-based fees run $150 for 2024–26 model years down to $10 on older bands. EV flat / RUC is $180/yr or UDOT RUC capped at $180.
$30,000 @ 7.00% unincorporated
Core DMV lines
Step-by-step formula
1. Choose rate by sourcing: dealer → purchase locality; private → registration address.
2. Multiply taxable price by combined rate.
3. Add title $6, reg $44, APC $3 (not EVs), corridor $0, and the uniform age-based fee for the model year band.
4. EV: $180 flat or RUC capped at $180 instead of stacking APC where rules exclude it.
Unincorporated $30,000
Private at registration address
Dealer vs private sourcing
Dealer tax follows the purchase locality. Private tax follows where you register. Financing at 7.14% does not change tax.
Dealer in another city
Private party
Local combined rates
Cache County unincorporated combined is 7.00%. Cache is not on the corridor fee list—corridor fee is $0.
Unincorporated row
Corridor fee
Title and registration fees
Title $6, passenger registration $44 (2026), APC $3, corridor as above, plus uniform age-based fee bands down to $10.
ICE fee core
EV path
Complete worked example
Cache County unincorporated, dealer $30,000, 2025 model (age-based $150 band):
$30,000 estimate
Renewal
Gifts, renewals, EVs
Do not invent a family sales-tax wipe. Gift/inheritance documentation must come from official DMV/Tax Commission paths. Renewals: no new sales tax; pay the fee stack.
Documented non-taxable transfer (if official path applies)
EV renewal
What buyers usually mix up
Utah has no family sales-tax exemption on vehicles—DMV is explicit. Dealer purchases use the purchase locality’s combined chart rate; private purchases use the registration address. Unincorporated Cache is 7.00%; unincorporated Salt Lake is 7.45%. Corridor fee is $10 in Salt Lake and $0 in Cache.
Sourcing rule
$20,000 unincorp Cache 7%
Title is $6, passenger registration $44, APC $3 (not on EVs), plus uniform age-based fees (for example $150 on 2024–26 bands). EV flat/RUC is $180 capped. Salt Lake City’s higher chart combined may drop resort components for motor vehicles—verify on TAP / Pub 5 before you pay.
Salt Lake corridor
No family wipe
FAQ
Is there a family exemption?
DMV states none—do not invent one.
Dealer vs private rate?
Dealer uses purchase locality; private uses registration address.
Does Cache pay the $10 corridor fee?
No—Cache is not on the corridor list.
Keep official links handy when you title: the agencies named in the references below publish the rate tables and fee charts used on this page. Dealer documentation fees, lender products, and optional plate styles can add more cash at the counter without changing the statutory tax math shown here. If a number in your quote does not match a published line, ask the clerk, treasurer, DMV, or revenue department which official row they used—especially for address-based local rates and annual ownership or valuation taxes.
Estimate hygiene
Financing note
When you compare two counties or two cities, compare the same pieces: purchase tax rate, title, registration base, and any annual ownership/valuation tax. A lower sales-tax city can still cost more once registration fees or valuation taxes are included. Use the worked examples on this page as templates, swap in your price and address rate, and confirm the final bill with the office that collects it.
Before you sign, separate the purchase-tax conversation from the registration conversation. Purchase or use tax is driven by the taxable price and the official locality rate. Registration brings title dollars, plate dollars, and any annual ownership or valuation tax that the state computes from MSRP, factory price, or manufacturer base retail. Keeping those conversations apart is the fastest way to spot a quote that mixed SOT, GST, VLT, or Motor Vehicle Tax into a fake “sales tax” percentage.
Carry the official source links from the reference list into the clerk or treasurer appointment. If a line item cannot be matched to a published table row, fee chart line, or flyer column, ask the office to identify the statute page or bulletin they are using. That single question usually resolves district-boundary mistakes and stale rate printouts.
Conclusion
Use the chart combined rate for your sourcing address—7.00% unincorporated in Cache County—then add title $6, reg $44, APC, corridor $0, and the age-based fee. Confirm city rows and resort-component MV treatment on the official Tax Commission chart.
This page estimates Cache County vehicle tax and registration amounts from published Utah Tax Commission and DMV figures. Those agencies set what you actually pay.