Illinois vehicle registration costs depend on your vehicle type, weight, and whether you're registering it for the first time or renewing

Illinois charges a base registration fee that varies by vehicle class. A standard passenger car costs $101 for a two-year registration period. Motorcycles cost $28 for two years. Trucks and other vehicles are charged based on their gross vehicle weight rating (GVWR) — the maximum weight they're designed to carry — and can range from $101 to several hundred dollars.

On top of the base fee, you'll pay a vehicle use tax if you're registering a vehicle in Illinois for the first time or if you've recently moved to the state. This tax is 6.25% of the vehicle's fair market value, with a minimum of $20. If you're renewing an existing registration, you don't pay the use tax again.

You may also owe local taxes and fees depending on your county or municipality. Some counties add a Regional Transportation Authority (RTA) tax of 1.25% to 2.25% of the vehicle's value. A few municipalities charge additional local registration taxes. The Secretary of State's office can tell you what applies in your area.

Key Takeaways

  • A standard passenger car registration in Illinois costs $101 for two years, with no additional use tax if you're renewing an existing registration.
  • First-time registrations and vehicles newly moved to Illinois include a 6.25% vehicle use tax on the fair market value, with a $20 minimum.
  • Trucks and heavier vehicles pay registration fees based on their gross vehicle weight rating, which can be significantly higher than passenger cars.
  • Some Illinois counties add a Regional Transportation Authority tax of 1.25% to 2.25%, so your total cost varies by location.
  • You can register your vehicle online through the Secretary of State's website, by mail, or in person at a local Secretary of State office.

How the base registration fee is calculated

Illinois groups vehicles into classes, and each class has a set fee. Passenger cars, SUVs, and vans under 8,000 pounds GVWR all fall into the standard category at $101 for two years. Motorcycles and mopeds are $28 for two years. Trailers under 3,000 pounds are $36 for two years.

For trucks and commercial vehicles, the fee depends on GVWR. A truck rated at 8,001 to 10,000 pounds costs $151 for two years. Heavier trucks pay more — a vehicle rated at 16,001 to 20,000 pounds costs $301 for two years. The Secretary of State's website has a complete fee schedule by weight class.

These base fees cover the cost of your registration certificate and license plates (if new). If you're renewing and keeping your existing plates, you still pay the full base fee — there's no discount for reusing plates.

Understanding the vehicle use tax on first-time registrations

When you register a vehicle in Illinois for the first time, or when you move to Illinois and register an out-of-state vehicle, you owe a vehicle use tax. This tax is 6.25% of what the Secretary of State determines to be the vehicle's fair market value. For a $20,000 car, that's $1,250. For a $10,000 used car, that's $625.

The Secretary of State uses published valuation guides to set fair market value, not the price you paid or what you think the car is worth. If you believe the valuation is wrong, you can request a review, but you'll need documentation like a recent appraisal or comparable sales data.

The use tax has a $20 minimum, so even if your vehicle's calculated tax is less than $20, you'll pay $20. There is no maximum cap. If you're renewing a registration you already hold in Illinois, you do not pay the use tax again — it's a one-time charge when the vehicle first enters the state's system.

County and local taxes that add to your bill

Illinois allows counties to impose an additional Regional Transportation Authority (RTA) tax on vehicle registrations. This tax ranges from 1.25% to 2.25% of the vehicle's fair market value, depending on which county you live in. Cook County (Chicago area) charges 2.25%. Some collar counties charge 1.25%. Not all counties have an RTA tax.

A few municipalities also charge their own local registration tax, though this is less common. These local taxes are separate from the state use tax and the RTA tax. Your total bill combines all three: the base state fee, the state use tax (if applicable), the county RTA tax (if your county has one), and any local municipal tax.

The Secretary of State's office can tell you the exact taxes that explore to your address. When you register online or in person, the system will calculate and display all applicable fees before you pay.

How to register your vehicle and pay the fees

You can register your vehicle through three routes: online at the Secretary of State's website, by mail, or in person at a local Secretary of State office. Online registration is the fastest — you can complete it in 10 to 15 minutes and pay by credit card or debit card. You'll receive your registration certificate and renewal notices by mail.

To register online, you'll need your vehicle identification number (VIN), current odometer reading, and proof of insurance. If you're registering for the first time, you'll also need your title or a bill of sale. The Secretary of State's website will walk you through the process and show you the total cost before you submit payment.

If you register by mail, read the process form from the Secretary of State's website, fill it out, and mail it with a check or money order to the address on the form. Processing takes two to three weeks. In-person registration at a local office is also available but typically takes longer due to wait times.

What happens if you register late or let your registration expire

Illinois requires you to register your vehicle before you drive it on public roads. If you drive with an expired or missing registration, you can be stopped and cited. The fine for driving with an expired registration is typically $100 to $500, depending on how long it's been expired.

If your registration has been expired for more than a year, you may need to pass an emissions test before you can renew, even if your vehicle normally wouldn't require one. You'll also pay the renewal fee plus any late fees the Secretary of State assesses. It's cheaper and simpler to renew on time.

You can renew your registration up to six months before it expires. The Secretary of State sends renewal notices by mail about 60 days before your expiration date. If you don't receive a notice, you can still renew online or by mail using your vehicle information.

Special cases: commercial vehicles, fleet registrations, and temporary permits

Commercial vehicles and trucks registered for business use follow the same fee structure as personal trucks — the fee is based on GVWR. However, commercial vehicles may need additional endorsements or permits depending on what they carry or how they're used. A vehicle carrying hazardous materials, for example, needs a separate hazmat endorsement.

If you own multiple vehicles, you can register them together and may receive a small discount on the second and subsequent vehicles in the same transaction. Fleet registrations for businesses with many vehicles have their own process and pricing — contact the Secretary of State's office for details.

If you need to drive a vehicle before registration is complete — for example, if you just bought a used car — you can request a temporary permit at the time of purchase. This permit is valid for 30 days and costs $20. It's not a substitute for registration; you still need to complete registration before the permit expires.

Frequently Asked Questions

Do I have to pay the vehicle use tax if I'm registering a used car I bought in Illinois?

Yes. The use tax applies to any vehicle registered in Illinois for the first time, whether it's new or used, and whether you bought it in Illinois or out of state. The tax is based on fair market value, not the price you paid. If you bought the car for $8,000 but the Secretary of State values it at $10,000, you pay tax on $10,000.

What if I move out of Illinois — do I get a refund on my registration?

No. Registration fees are not refundable. If you move out of state before your two-year registration period ends, you'll need to register your vehicle in your new state, but you won't recover the Illinois fees you already paid. You should register in your new state as soon as you establish residency there.

Can I register a vehicle if I don't have a title yet?

If you just bought the car, you can use the bill of sale from the dealer or private seller to register it temporarily. You'll need to provide the title within a set timeframe — usually 30 days — or your registration may be suspended. If the title is being transferred from another state, contact the Secretary of State's office about the process for your situation.

Does Illinois offer any discounts on registration fees?

Illinois does not offer discounts on the base registration fee for most drivers. However, disabled veterans and active-duty military members may be may be able to access for reduced fees or exemptions. Contact your local Secretary of State office or the Illinois Department of Veterans Affairs to learn what you may be may have access to to.

How much will my registration cost if I have a truck that weighs 12,000 pounds?

A truck with a 12,000-pound GVWR falls into the 10,001 to 12,000-pound category, which costs $201 for two years. Add the state use tax (6.25% of fair market value) if it's your first registration, plus your county's RTA tax if applicable. For a $15,000 truck in Cook County, you'd pay roughly $201 base fee, $937.50 use tax, and $337.50 RTA tax, for a total around $1,476.