Smog test prices range from $30 to $80 depending on your vehicle type and location
A smog test costs between $30 and $80 in most states, though the exact price depends on whether you drive a regular car, a truck, or a vehicle with a diesel engine. Diesel vehicles and trucks often cost more to test because they require different equipment. Your state sets the maximum price that test stations can charge, so prices don't vary wildly within the same state, but they do vary between states.
The price you pay covers the technician's time, the testing equipment, and the paperwork that gets sent to your state's emissions agency. Some stations charge a flat rate; others charge slightly less if your vehicle passes on the first try. A few stations offer discounts if you bring in multiple vehicles or if you're a repeat customer, though this is uncommon.
Key Takeaways
- Smog test costs typically fall between $30 and $80, with diesel vehicles and trucks usually costing more than standard passenger cars.
- Your state sets the maximum price test stations can charge, so shopping around within your state will only save you a few dollars.
- Some test stations charge extra if your vehicle fails and needs to be retested, so ask about retest fees before you schedule.
- Independent repair shops and chain stores like Firestone often charge less than dealerships for the same smog test.
Why the price varies by vehicle type
A standard passenger car with a gasoline engine is the cheapest to test because the equipment is straightforward and the test takes about 15 to 20 minutes. Trucks and SUVs with larger engines cost more because they require a different testing protocol. Diesel vehicles cost the most because they need specialized equipment that fewer stations own, and the test itself is more complex.
Hybrid vehicles sometimes cost more because technicians need to understand how to test a vehicle that switches between electric and gas power. If you're unsure what category your vehicle falls into, call the test station and describe your vehicle — they can tell you the exact price before you arrive.
Where to get tested and what each option costs
You can get a smog test at a dedicated smog test station, an independent repair shop, a chain auto service center like Firestone or Jiffy Lube, or a dealership. Dedicated smog stations are usually the cheapest, charging the state minimum or close to it. Independent repair shops typically charge $5 to $15 more than dedicated stations. Chain service centers fall in the middle. Dealerships are almost always the most expensive option, sometimes charging $20 to $30 more than a dedicated station.
The test itself is identical no matter where you go — the equipment and the procedure are standardized by your state. The difference is overhead: a dedicated smog station has low rent and few employees, while a dealership has higher costs built into every service. If you're only getting a smog test and not any repairs, a dedicated station or independent shop is your best choice for cost.
Retest fees and what happens if you fail
If your vehicle fails the smog test, you'll need to fix the problem and get retested. Some stations charge a full retest fee (the same $30 to $80 as the initial test), while others charge a reduced retest fee of $15 to $30. A few stations include one free retest if you fail, though this is rare. Always ask about the retest policy before you schedule your first test.
If you fail and need repairs, you don't have to return to the same station. You can take your vehicle to any repair shop, get the work done, and then go to a different (possibly cheaper) station for the retest. Some people use a dedicated smog station for the initial test and then go to an independent shop for the retest if they fail, or vice versa.
How to find the cheapest test station near you
Call three to five test stations in your area and ask for the price for your specific vehicle type. Most stations will quote you over the phone in under a minute. Write down the prices and the retest fee for each one. The difference between the cheapest and most expensive might only be $10 to $20, but that's worth five minutes of phone calls.
You can also search online for "smog test near me" or "emissions test [your city]" to find stations in your area. Google Maps and Yelp will show you addresses, phone numbers, and sometimes customer reviews that mention price. Some states maintain a list of certified test stations on their environmental or motor vehicle agency website, which can help you find options you might not find through a general search.
What's included in the test fee and what costs extra
The smog test fee covers the test itself and the certificate or report that proves you passed (or the documentation of failure). It does not cover any repairs your vehicle might need. If the technician finds a problem during the test, they may offer to fix it, but you can always take your vehicle elsewhere for repairs.
Some stations charge a small fee ($5 to $10) to print and mail your certificate if you request a paper copy, though most now email it or send it directly to your state's system. If you need your certificate the same day, ask whether the station can print it on-site or if you'll need to wait for it to arrive by mail or email.
Frequently Asked Questions
Can I get a smog test at a dealership and pay less?
Dealerships almost always charge more than independent stations or dedicated smog test shops. If you're only getting a smog test and not any repairs, you'll save money by going to an independent shop or a dedicated test station instead.
Do I have to pay the full price again if my vehicle fails?
It depends on the station. Some charge a full retest fee, some charge a reduced fee, and a few include one free retest. Ask about the retest policy before your first test so you know what to expect if you fail.
Is the smog test the same price everywhere in my state?
No. Your state sets a maximum price, but stations can charge less. Dedicated smog stations usually charge near the minimum, while dealerships and chain service centers often charge more. Calling around can save you $10 to $20.
What if I get tested at one station and need a retest at a different one?
You can get retested anywhere. There's no rule saying you have to return to the same station. Some people shop around for the cheapest retest option after they fail, which is a smart way to save money if retest fees are high at your first station.
Does the price change if I need a smog test for a vehicle I'm selling?
No. The test is the same whether you're testing your own vehicle or one you're selling. The price depends only on the vehicle type and your location, not on who owns it or why it's being tested.