Car Registration Fee Calculator Colorado

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Colorado Car Registration Fee Calculator

Estimate your Specific Ownership Tax (SOT) and registration costs.

1st Year 2nd Year 3rd Year 4th Year 5th – 9th Year 10th Year or Older
Gas / Diesel Electric / Plug-in Hybrid

Estimated Registration Breakdown

Taxable Value (85% of MSRP):
Specific Ownership Tax (SOT):
License/Weight Fee:
EV Road Usage Equalization Fee:
Clerk/Admin Fees (Estimated):
Total Estimated Cost:

*Disclaimer: These are estimates based on standard Colorado DMV formulas. Actual costs vary by county and specific plate types.

How Colorado Car Registration Fees are Calculated

In Colorado, vehicle registration is not a flat fee. It is primarily composed of the Specific Ownership Tax (SOT), which is a property tax paid in lieu of personal property tax. This is why registering a brand-new vehicle in Colorado can cost several hundred, or even over a thousand, dollars.

1. Specific Ownership Tax (SOT)

The SOT is calculated based on the vehicle's "Taxable Value," which the Colorado Department of Revenue defines as 85% of the original Manufacturer's Suggested Retail Price (MSRP). The tax rate decreases as the vehicle ages:

  • 1st Year: 2.10% of taxable value
  • 2nd Year: 1.50% of taxable value
  • 3rd Year: 1.20% of taxable value
  • 4th Year: 0.90% of taxable value
  • 5th – 9th Year: 0.45% of taxable value
  • 10th Year+: Typically a flat $3.00 fee

2. Weight-Based Registration Fees

Beyond the property tax, Colorado charges license fees based on the vehicle's empty weight. For most passenger vehicles under 2,000 lbs, the base fee starts around $12, increasing for heavier SUVs and trucks. Most common sedans and crossovers fall into the $35 – $60 range for base registration fees.

3. Electric Vehicle (EV) Fees

Since July 2021, Colorado has implemented an "EV Road Usage Equalization Fee." Because electric vehicle owners do not pay the state fuel tax at the pump, this fee helps fund road maintenance. As of 2024, this fee is approximately $52.00 for full EVs and slightly less for Plug-in Hybrids.

Example Calculation

If you purchase a new SUV with an MSRP of $40,000:

  • Taxable Value: $40,000 x 0.85 = $34,000
  • SOT (Year 1): $34,000 x 0.021 = $714.00
  • Weight Fees: ~$45.00
  • Total: Approximately $759.00 + local county fees
function calculateCOReg() { var msrp = parseFloat(document.getElementById('msrp').value); var year = parseInt(document.getElementById('regYear').value); var weight = parseFloat(document.getElementById('weight').value); var vehicleType = document.getElementById('isEV').value; if (isNaN(msrp) || msrp <= 0) { alert("Please enter a valid MSRP."); return; } if (isNaN(weight) || weight = 10) { sotAmount = 3.00; } else { sotAmount = taxableValue * sotRate; } // Step 3: Base License Fee based on weight var weightFee = 0; if (weight = 2000 && weight = 4500 && weight < 6500) { weightFee = 55.00; } else { weightFee = 85.00; } // Step 4: EV Fees var evFee = 0; if (vehicleType === "ev") { evFee = 52.00; } // Step 5: Admin/Clerk Fees (Estimated) var adminFee = 18.50; var total = sotAmount + weightFee + evFee + adminFee; // Display Results document.getElementById('resTaxable').innerText = "$" + taxableValue.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); document.getElementById('resSOT').innerText = "$" + sotAmount.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); document.getElementById('resWeightFee').innerText = "$" + weightFee.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); document.getElementById('resEVFee').innerText = "$" + evFee.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); document.getElementById('resAdmin').innerText = "$" + adminFee.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); document.getElementById('resTotal').innerText = "$" + total.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); document.getElementById('regResult').style.display = 'block'; }

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