What is the Specific Ownership Tax?

Colorado charges a Specific Ownership Tax in place of a personal property tax on vehicles. It is based on a taxable value derived from the original MSRP and declines as the vehicle ages, from 2.1 percent in the first year down to a flat minimum for older cars.

Why does an older car cost less to register?

The ownership tax rate drops each year for the first several years. After year ten the tax falls to a flat 3 dollars minimum, so older vehicles are far cheaper to register than new ones of the same value.

Are these the exact fees I will pay?

This is a close estimate of the state portion. Your county may add small fees and Colorado adds road safety and bridge surcharges that vary by weight. Always confirm the final amount with your county motor vehicle office.

What weight should I enter?

Use the vehicle's empty (curb) weight in pounds, which appears on the title or manufacturer label. Weight only affects the road safety and bridge surcharge tiers, not the ownership tax.

Does this include sales tax?

No. Registration fees and sales tax are separate. Use the Colorado Car Sales Tax Calculator for the one-time purchase tax; this tool covers the recurring annual registration cost.

Colorado Vehicle Registration Fee Calculator

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Colorado registration is dominated by the Specific Ownership Tax (SOT), a value-based charge that replaces a property tax on your car. This calculator combines the SOT with the state’s flat base license, road safety, and bridge fees to estimate your annual registration cost.

How it works

The taxable value is set by the DMV at a percentage of original MSRP (85% for passenger vehicles). The ownership tax rate then steps down by vehicle age:

year 1        2.10% of taxable value
year 2        1.50%
year 3        1.20%
year 4        0.90%
years 5-9     0.45%
year 10+      flat $3.00 minimum

The annual total adds the value-based ownership tax to fixed fees:

total = ownership tax + base license + road safety fee + bridge fee

Road safety and bridge surcharges rise with vehicle weight (light passenger vehicles pay roughly $23 and $18 respectively).

Example

A two-year-old car with a $25,000 taxable value pays 25000 × 0.015 = $375 ownership tax, plus about $25 + $23 + $18 = $66 in fixed fees, for roughly $441 for the year.

Notes

County-level fees and emissions program charges are not included and vary by location. The SOT minimum of $3 applies once a vehicle is in its tenth year or older, which is why classic cars register so cheaply.