Last Friday afternoon, a customer rolled into my service bay in a Honda Odyssey minivan for a pre-trip oil change and tire rotation before driving his family from suburban Chicago all the way to Outer Banks, North Carolina, and down to Orlando. As I was resetting his oil maintenance light on the dash, he pointed up at the little white Illinois I-PASS transponder stuck behind his rearview mirror and asked a question I hear every single week in the shop: “Hey, do I need to peel this thing off once we cross into Indiana and buy a separate toll pass for Ohio, West Virginia, and Florida, or will this one box cover the whole drive?”
If you’re packing up your car for an interstate road trip and wondering where your I-PASS works, you’re in luck. Because the Illinois Tollway is a full member of the multi-state E-ZPass system, your single I-PASS transponder or sticker tag is welcomed across 19+ states stretching from the Midwest to the East Coast and all the way down to Florida.
Instead of juggling three different plastic boxes on your windshield or getting hammered with $15 administrative “Pay-By-Mail” invoice fees two weeks after you get home, you can use your existing I-PASS account to pay tolls automatically from Illinois to New York, Virginia, and beyond. Let’s walk through how I-PASS RFID hardware works on your car, which states and toll roads accept your pass right now, how the new I-PASS Sticker Tag compares to the old battery box, and the windshield-mounting mistakes I see in the shop that cause toll readers to miss your tag.
How I-PASS works on your windshield (and why E-ZPass compatibility saves you real money)
When you cruise under an overhead toll gantry at 65 mph in the Midwest or out East, your I-PASS device uses Radio Frequency Identification (RFID) technology to talk to the overhead antennas in a fraction of a second. You don’t have to slow down to 5 mph, roll down your window in a February blizzard, or dig through your cupholder for loose quarters.
How the I-PASS transponder and prepaid account work
At its core, I-PASS is the electronic toll collection system operated by the Illinois State Toll Highway Authority. You mount a small electronic transponder or adhesive RFID sticker tag to the inside of your windshield (or bolt a weatherproof license-plate transponder to your front bumper bracket), and link that device to a pre-funded account backed by your credit or debit card.
Every time your car passes underneath a toll plaza or an open-road tolling arch, overhead radio transceivers beam a 900-MHz interrogation signal toward your windshield. Your I-PASS tag reflects back its unique serial ID number, the toll computer verifies your account, and the exact toll charge is deducted automatically from your prepaid balance. Even better, on all Illinois Tollway roads (like I-90, I-94, I-294, I-88, and I-355), having an active I-PASS cuts your toll cost by 50% compared to standard cash or Pay-By-Plate rates!
How compatibility with the E-ZPass system works across state lines
Your I-PASS is not restricted to the state lines of Illinois. Years ago, the Illinois Tollway joined the E-ZPass Interagency Group (IAG), a massive interstate reciprocity network of toll authorities across the eastern half of the United States. You can check the official map of member toll agencies at the E-ZPass Interagency Group portal.
Because I-PASS and E-ZPass share the exact same RFID communication protocol, overhead toll readers in states like Indiana, Ohio, Pennsylvania, New York, Virginia, and Florida read your Illinois I-PASS tag just like a local E-ZPass! You don’t need to flip a switch, register with another state’s website, or pay a monthly out-of-state roaming fee. The out-of-state toll authority simply records your I-PASS serial number, bills the Illinois Tollway at the electronic E-ZPass rate, and the charge shows up right on your normal I-PASS statement a few days later.
| Feature / Question | Driving in Illinois (Home Network) | Driving Out-of-State (E-ZPass Network) |
|---|---|---|
| Does I-PASS Work Automatically? | Yes, on all Illinois Tollway roads and the Chicago Skyway | Yes, on all toll roads, bridges, and tunnels displaying the purple E-ZPass logo (24 hours after tag activation) |
| What Toll Rate Do You Pay? | 50% discount off the standard Illinois Pay-By-Plate rate | You pay that state’s out-of-state E-ZPass electronic rate (saving you from expensive Pay-By-Mail / video tolling surcharges!) |
| Do Sticker Tags & Hard-Case Boxes Both Work? | Yes, both the new I-PASS Sticker Tag and legacy white plastic transponders work | Yes, both the new I-PASS Sticker Tag and legacy hard-case transponders read across all E-ZPass states |
| Can Other States Read Your License Plate if the Tag Is Missing? | Yes, Illinois Tollway matches your registered plate to your account | Careful! Many out-of-state agencies require a physical transponder read at the gantry, or they will mail a higher video-toll bill to your home |
Where your I-PASS can be used: state-by-state breakdown by region
As an I-PASS holder, you can drive thousands of miles across the Midwest, Northeast, and South using one single windshield tag. However, as a mechanic who helps customers plan long road trips every summer, I like to give drivers the real-world scoop on each state: which ones have major E-ZPass turnpikes from border to border, which ones only use E-ZPass on specific express lanes or river bridges, and which neighboring states in the list don’t actually charge highway tolls once you’re inside them. Here is the complete regional breakdown.
1. Midwestern states (your home turf and neighboring turnpikes)
Your I-PASS gets its heaviest workout right here in the Midwest, especially when you head east around the bottom of Lake Michigan or north toward the Twin Cities:
- Illinois: The home turf of the I-PASS system! Your pass covers all 294 miles of the Illinois Tollway network, including the Jane Addams Memorial Tollway (I-90), the Tri-State Tollway (I-94 / I-294 / I-80), the Reagan Memorial Tollway (I-88), the Veterans Memorial Tollway (I-355), the Elgin O’Hare Western Access (IL-390), and the privately operated Chicago Skyway (I-90) connecting Chicago to the Indiana border.
- Indiana: The moment you cross the state line from the Chicago Skyway onto the Indiana Toll Road (I-80 / I-90), your I-PASS works at every barrier and ticketed interchange all the way across northern Indiana to the Ohio border. It also works down south on the RiverLink toll bridges connecting southern Indiana and Louisville, Kentucky (I-65 Abraham Lincoln and Kennedy Bridges, and the Route 265 Lewis and Clark Bridge).
- Ohio: Crossing from Indiana into the Buckeye State puts you right onto the 241-mile Ohio Turnpike (I-80 / I-90 / I-76). Every single toll plaza on the Ohio Turnpike has dedicated E-ZPass express lanes that read your Illinois I-PASS at highway speed, saving you roughly 30% over the cash/ticket toll rate!
- Minnesota: Heading northwest up I-94? Minnesota switched its twin-cities express lanes (formerly called MnPASS) over to the Minnesota E-ZPass system! Your I-PASS works on the I-35W, I-35E, and I-394 E-ZPass Express Lanes around Minneapolis and St. Paul. (Just keep in mind that if you have 2+ people in the car and want the free HOV carpool rate on Minnesota express lanes, you need a switchable HOV transponder; a standard single-mode Illinois I-PASS will automatically pay the solo-driver express lane toll.)
- Iowa, Wisconsin, Michigan, and Nebraska (The Road-Trip Neighbor Nuance!): You will frequently see Iowa, Wisconsin, Michigan, and Nebraska mentioned in regional I-PASS travel guides, so let’s clear up a common point of confusion before you hit the road! Wisconsin and Iowa do not currently have statewide E-ZPass toll highways (the few small local bridges between Iowa and Nebraska use their own local bridge tokens or cash/card). In Michigan, while state interstates are toll-free, its major international and Mackinac bridges have historically used their own bridge-specific cards (like the MacPass or Ambassador Bridge card) rather than E-ZPass, so always keep a credit card handy when crossing a border bridge in Michigan!
2. Northeastern states (where an I-PASS is an absolute lifesaver!)
If you have ever driven through the Northeast without an E-ZPass-compatible transponder, you know how brutal the toll plazas and Pay-By-Mail surcharges can be. Take your Illinois I-PASS into the Northeast and you’ll breeze right through the purple E-ZPass lanes in all nine states:
- Pennsylvania: Cross the entire length of the Pennsylvania Turnpike (I-76 / I-70 / I-276 / I-476) and all Delaware River bridges using your I-PASS. Because the PA Turnpike converted to all-electronic Cashless Tolling, having an active I-PASS/E-ZPass on your windshield saves you roughly 50% compared to PA’s expensive Toll-By-Plate mail rate!
- New York: From the New York State Thruway (I-90 / I-87) in Buffalo and Albany all the way down to New York City’s MTA bridges and tunnels, the Port Authority Hudson River crossings (George Washington Bridge, Lincoln Tunnel, Holland Tunnel), and the Peace Bridge, your I-PASS is accepted everywhere E-ZPass is posted.
- New Jersey: Cruise the entire New Jersey Turnpike (I-95), the Garden State Parkway, the Atlantic City Expressway, and all Delaware and Hudson River crossings without stopping.
- Massachusetts: The Bay State uses all-electronic open-road tolling under the EZDriveMA program on the Massachusetts Turnpike (I-90), the Sumner, Callahan, and Ted Williams Tunnels in Boston, and the Tobin Memorial Bridge. Your I-PASS pays every single one automatically.
- Delaware: Small state, huge toll savings! Your I-PASS works on the Delaware Turnpike (I-95), Korean War Veterans Memorial Highway (Route 1), and the Delaware Memorial Bridge.
- Maryland: From the I-95 Express Toll Lanes north of Baltimore and the Fort McHenry / Baltimore Harbor Tunnels down to the Chesapeake Bay Bridge (US 50/301) and the Intercounty Connector (MD 200) outside Washington, D.C., Maryland’s DriveEzMD system reads your I-PASS at every gantry.
3. Additional New England participating states
Continuing up the coast into New England, your I-PASS remains 100% active in these three participating E-ZPass states:
- New Hampshire: Breeze through the Blue Star Turnpike (I-95), the F.E. Everett Turnpike, and the Spaulding Turnpike without stopping at a booth.
- Rhode Island: Your I-PASS works immediately on the scenic Claiborne Pell Newport Bridge (RI-138) across Narragansett Bay.
- Maine: Driving all the way to Portland, Bar Harbor, or Acadia National Park? The entire 109-mile Maine Turnpike (I-95) is part of the E-ZPass network and accepts your Illinois I-PASS at every plaza.
4. Southern states (mountain turnpikes, express lanes, and Florida sunshine!)
Heading south for a winter getaway to Florida or a summer drive through the Blue Ridge Mountains? Your I-PASS works across the entire Southern E-ZPass corridor:
- Kentucky: Cruise right across the Ohio River on the RiverLink all-electronic toll bridges connecting Louisville, Kentucky, and southern Indiana without receiving a mailed invoice.
- West Virginia: Anyone who has driven I-77 through the mountains toward the Carolinas knows the three main barrier toll plazas on the West Virginia Turnpike (I-77). Your I-PASS lets you roll straight through the E-ZPass lanes at Ghent, Pax, and Chelyan.
- Virginia: Virginia has a massive network of toll roads, bridges, and dynamic Express Lanes, including the I-95, I-495, I-395, and I-66 Express Lanes around Northern Virginia/D.C., the Dulles Toll Road (VA-267), the Powhite Parkway and Downtown Expressway in Richmond, and the Chesapeake Bay Bridge-Tunnel and Elizabeth River tunnels in Hampton Roads. All of them accept I-PASS via E-ZPass.
- North Carolina: Drive the Triangle Expressway (NC 147 / NC 540) around Raleigh-Durham and the Monroe Expressway (US 74) near Charlotte without a hitch, as NC Quick Pass is fully interoperable with E-ZPass and I-PASS.
- Florida: Here is one of the best upgrades for Midwest snowbirds driving down I-75 or I-95 to Florida! Both the Central Florida Expressway Authority (CFX around Orlando/Disney) and the Florida Department of Transportation (FDOT / SunPass) now accept E-ZPass and Illinois I-PASS on Florida’s Turnpike, the Alligator Alley (I-75), the Sunshine Skyway Bridge, and all Orlando-area expressways! Just look for the purple E-ZPass or SunPass electronic lanes.
- Georgia: Georgia’s Peach Pass authority (State Road and Tollway Authority) joined the E-ZPass network, bringing compatibility to Georgia’s I-75 South Metro, I-75 Northwest Corridor, and I-85 Express Lanes around Atlanta! Because state toll agencies occasionally update lane rules on dynamic HOV/HOT express lanes, always double-check your route before departure.
| State | I-PASS Accepted? | Major Toll Roads, Bridges & Express Lanes Covered |
|---|---|---|
| Illinois | Yes (Home State) | All Illinois Tollway roads (I-90, I-94, I-294, I-88, I-355, IL-390) + Chicago Skyway |
| Indiana | Yes | Indiana Toll Road (I-80/90) + RiverLink Louisville Bridges (I-65 / SR-265) |
| Ohio | Yes | Ohio Turnpike (I-80 / I-90 / I-76) |
| Pennsylvania | Yes | PA Turnpike (I-76, I-276, I-476, PA-66, PA-576) + Delaware River Bridges |
| New York | Yes | NYS Thruway (I-87 / I-90), MTA Bridges & Tunnels, Port Authority Hudson Crossings |
| New Jersey | Yes | NJ Turnpike (I-95), Garden State Parkway, Atlantic City Expressway |
| Massachusetts, NH, ME, RI | Yes | Mass Pike (I-90), Boston Tunnels, Maine Turnpike (I-95), NH Turnpikes, Newport Bridge |
| Delaware & Maryland | Yes | I-95 Tolls, DE Route 1, Chesapeake Bay Bridge, Baltimore Tunnels, MD-200 ICC |
| Virginia & West Virginia | Yes | WV Turnpike (I-77), VA I-95/I-495/I-66 Express Lanes, Dulles Toll Rd, Hampton Roads Tunnels |
| Kentucky & North Carolina | Yes | RiverLink I-65 Bridges (KY), Triangle Expressway & Monroe Expressway (NC) |
| Florida & Georgia | Yes | Florida’s Turnpike, Alligator Alley, Orlando CFX Expressways, Atlanta Express Lanes |
| Minnesota | Yes | Twin Cities E-ZPass Express Lanes (I-35W, I-35E, I-394) |
I-PASS features and hardware: sticker tags vs. hard-case transponders
If you haven’t ordered a new I-PASS in the last couple of years, you might be surprised the next time you pick one up. The Illinois Tollway overhauled its transponder hardware to make the system cheaper, thinner, and completely maintenance-free.
Ease of use and automatic account replenishment
Whether you commute forty miles a day through the Chicagoland suburbs or only take two family road trips a year, the biggest benefit of I-PASS is that it works silently in the background. You link your account to a credit card or debit card with Auto-Replenish turned on, and whenever your prepaid toll balance dips below your threshold (typically $10), the system automatically reloads your account so you never get hit with an unpaid toll violation.
Even better, you can register multiple family cars under one single I-PASS account. That way, all of your transponders or sticker tags draw from one shared prepaid balance instead of forcing you to manage three separate logins.
The new I-PASS Sticker Tag vs. traditional hard-case transponders
Beginning in 2024, the Illinois Tollway began phasing out the old chunky white plastic battery-powered transponders and replacing them with the new I-PASS Sticker Tag. Because we install and work around both types on customer windshields every day in the shop, here is the exact difference between the two, along with one huge mechanic rule you must know about the new sticker:
- The New I-PASS Sticker Tag (No Battery, $0 Deposit!): The new sticker tag is a thin, flexible adhesive strip about the size of a Band-Aid with a built-in passive copper/foil RFID antenna and microchip. Because it is passive RFID (powered momentarily by the radio energy beamed from the overhead toll reader itself!), it has no internal battery and never expires! There is also no $10 transponder deposit required when you get a sticker tag, and once activated, it works across both Illinois Tollway and all out-of-state E-ZPass roads within 24 hours.
- The Traditional Hard-Case Transponder (Lithium Battery, Removable): If you already have the classic white plastic I-PASS box mounted to your windshield with 3M Dual-Lock Velcro strips (or a black external front license plate transponder), do not throw it away! Your existing hard-case transponder will continue to work across Illinois and all E-ZPass states until its internal lithium battery eventually dies. Once that old box finally reaches the end of its battery life, the Tollway replaces it with a new Sticker Tag and credits your original $10 refundable transponder deposit right back into your prepaid toll balance!
Mechanic’s warning about the new Sticker Tag: Unlike the old plastic Velcro box that you could pop off your windshield and stick into a buddy’s truck or a rental car, an I-PASS Sticker Tag CANNOT be moved from one car to another! The adhesive backing is engineered with tamper-proof security slits so that if you try to peel the sticker off your windshield, the internal foil antenna tears in half and permanently deactivates the tag! If a rock cracks your windshield on the highway and you bring your car into the shop for a windshield replacement, don’t try to scrape the old I-PASS sticker off to save it. Just log into your Illinois Tollway account, mark that sticker tag as “Replaced Windshield / Deactivated,” and apply a fresh sticker tag to your new glass for free!
Where to buy an I-PASS and how to keep it working on every trip
Getting an I-PASS is quick, and keeping your account healthy takes about five minutes once or twice a year. Here is where to pick one up and what you need to check before a big drive.
Where to purchase an I-PASS (Jewel-Osco, online, and customer service centers)
If you need an I-PASS before heading out on the Illinois Tollway, the Chicago Skyway, or an interstate road trip, you have several easy ways to get one:
- Jewel-Osco Grocery Stores (Over 180 Retail Locations): The fastest way to grab an I-PASS in person is at the Customer Service desk inside any Jewel-Osco store across Illinois and Northwest Indiana (as well as participating Road Ranger travel centers). When you walk up to the Jewel-Osco service counter, bring your driver’s license, your zip code, and your car’s make, model, year, and license plate number so you can activate the tag online or via the Illinois Tollway app before you hit the road.
- Online at IllinoisTollway.com (or the Official Tollway App): You can order I-PASS Sticker Tags directly from the Illinois Tollway website with free shipping to your mailbox, and register your license plate immediately while the sticker is in the mail.
- Illinois Tollway Customer Service Centers & Oasis Locations: If you need help in person, or if your car has a special metallized windshield that requires ordering an external front license-plate transponder, you can stop by an Illinois Tollway Customer Service Center (such as the Belvidere, Hinsdale, Lake Forest, or Chicago Southland Lincoln Oasis plazas, or the Downers Grove headquarters).
Maintenance tips: batteries, deposits, and account balance checks
Most toll headaches happen because a driver hasn’t logged into their I-PASS account in three years and doesn’t realize their credit card on file expired! Before you cross state lines, run through these three simple maintenance checks:
- Check the battery age on legacy hard-case transponders: If you still use the older white plastic box, remember that it runs on a sealed internal lithium battery designed to last roughly 7 to 10 years. You cannot pry the plastic box open to swap a coin-cell battery yourself (doing so breaks the housing and voids the device). If your online account shows missed transponder reads (forcing the Tollway to bill you by license plate photo instead), it’s time to swap that tired unit for a battery-free I-PASS Sticker Tag and claim your $10 deposit credit.
- Verify your credit card expiration date and prepaid balance: Whenever your bank sends you a new credit or debit card with an updated expiration date or CVV security code, log into your I-PASS account and update your payment method! If Auto-Replenish fails while you are driving through Ohio, Pennsylvania, and New York, your I-PASS tag will go into “Insufficient Funds / Invalid” status at out-of-state E-ZPass plazas.
- Wait 24 hours after activating a brand-new tag before driving out of state: While a newly activated I-PASS works almost immediately on Illinois Tollway plazas, it takes up to 24 hours for the Illinois Tollway database to transmit your new tag serial number to out-of-state E-ZPass agencies (including the Chicago Skyway, Indiana Toll Road, and Florida SunPass). Always activate your new sticker the day before your road trip!
Mechanic’s guide to mounting your I-PASS (and the solar windshield trap!)
You wouldn’t believe how many drivers tell me their I-PASS “stopped working” in Indiana or New York, when the real culprit has nothing to do with their account balance: it’s where they stuck the transponder on their windshield, or the type of glass in their car!
Where to mount your I-PASS so overhead scanners read it 100% of the time
Overhead RFID antennas at toll plazas are aimed downward at a specific angle toward the top center of your windshield. If you toss your I-PASS transponder loose on the dashboard, leave it sitting down in the center console cupholder, or wave it in your hand at the last second as you pass under the gantry at 70 mph, the radio wave frequently bounces off the steel hood or misses the tag completely.
- Standard Windshields: Clean the inside of the glass with a little rubbing alcohol, let it dry, and mount your I-PASS Sticker Tag or transponder right behind the rearview mirror, at least 1 to 2 inches below the top metal roof line (and just to the right or left of the mirror stem so it stays out of your direct line of sight).
- Cars with ADAS Camera Pods (Subaru EyeSight, Honda Sensing, Toyota Safety Sense, Ford Co-Pilot360): Here is a critical shop rule! If your car has forward-facing stereo cameras or rain/light sensors mounted in a plastic housing around the rearview mirror, never stick your I-PASS directly in front of the camera lenses or within the forbidden zone shown in your owner’s manual! On Subarus with dual EyeSight cameras, sticking a toll pass in the middle of the upper glass will blind the stereo camera and trigger a “EyeSight Disabled” warning on your dash! Instead, mount the tag outside the camera’s sweep zone (typically on the upper passenger side of the mirror housing, or along the lower corner if specified by the manufacturer). Safety standards and driver-assistance camera visibility guidelines can be checked on the National Highway Traffic Safety Administration (NHTSA) website.
The “metallized / acoustic solar glass” problem (why some windshields block RFID!)
A couple of months ago, a guy with a Range Rover (we see this on certain BMW, Mercedes-Benz, Audi, Porsche, Tesla, Ford/Lincoln, andGM SUVs too) came into the shop furious because every single E-ZPass plaza between Chicago and New Jersey failed to read his brand-new I-PASS. Why?
Many luxury and late-model vehicles use Infrared-Reflective (IRR) solar-coated glass or electrically heated windshields that have a microscopic layer of metallic silver or titanium oxide laminated right between the two sheets of safety glass to keep the cabin cool in the summer. That invisible metal film acts like a Faraday cage: it blocks 915-MHz RFID radio signals cold!
If your car has a solar-coated or acoustic metallized windshield, look closely at the area directly around your rearview mirror for a patch of black ceramic dots (called the “frit” cutout zone). Car manufacturers intentionally leave the metallic solar coating out of that dotted black cutout window around the mirror specifically so toll transponders and garage door openers can shoot a signal through the glass! If your windshield has no cutout window at all, request an external weatherproof front license-plate transponder from the Illinois Tollway and bolt it to the top two screws of your front license plate bracket (using stainless steel screws and a dab of anti-seize compound so winter road salt doesn’t rust the bolts solid!). Federal interoperability standards for electronic tolling hardware are overseen by the Federal Highway Administration (FHWA).
4 quick road-trip rules before you cross state lines with I-PASS
- Mount it firmly before you leave the driveway: Never hold a transponder or unpeeled sticker tag in your hand while driving through a toll zone. An unmounted sticker tag that isn’t adhered to glass actually has a detuned antenna and often will not read at all! (Why does an unpeeled RFID sticker fail to read? Because passive UHF windshield sticker antennas are dielectrically tuned to the glass itself, meaning the glass acts as part of the antenna’s resonant circuit! Holding the unpeeled paper sticker in the air changes its resonant frequency so the overhead scanner can’t read it!)
- Never leave a spare transponder exposed in the glovebox: If you are transporting a second transponder in the car, wrap it completely in heavy aluminum foil or keep it inside the metallic silver Mylar “shield bag” it came in so the overhead scanner doesn’t accidentally charge both tags at the same toll plaza!
- Update your license plate number immediately if you buy a new car or get new plates: If an out-of-state E-ZPass gantry misses your transponder read for a split second, it takes a high-speed photo of your rear license plate and checks the E-ZPass/I-PASS plate database. If your current license plate is listed on your I-PASS account, it simply bills your account instead of mailing you a violation ticket!
- Using a rental car? Use the Temporary / Rental Car feature in your I-PASS account: If you fly into an airport on vacation and rent a car in an E-ZPass state, don’t let the rental car counter charge you $15 to $25 per day for their overpriced toll program! If you have a removable hard-case I-PASS transponder, bring it in your carry-on bag, mount it on the rental windshield, and add the rental car’s license plate to your I-PASS account with a specific start and end date/time so you never get billed after you return the car.
Compatibility with other toll systems (E-ZPass, SunPass, Peach Pass, and where I-PASS does NOT work!)
Your I-PASS isn’t limited to Illinois; it works smoothly across the entire E-ZPass network, as well as partner systems in the South that have linked their scanners with E-ZPass, including Florida’s SunPass / CFX E-PASS network and Georgia’s Peach Pass network. That means one single account covers virtually the entire eastern half of the United States from Minnesota and Maine all the way down to Miami.
However, just as important as knowing where your I-PASS does work is knowing where it does NOT work so you don’t accidentally blow through a toll lane in the western half of the country! As of today, your Illinois I-PASS is NOT compatible with:
- Texas, Oklahoma, and Kansas: TxTag / TollTag / EZ TAG (Texas), PikePass (Oklahoma), and K-TAG (Kansas) use a different regional hub and do not accept Illinois I-PASS or E-ZPass.
- California, Washington, Oregon, Colorado, and Utah: California’s FasTrak, Washington’s Good To Go!, and Colorado’s ExpressToll do not read I-PASS or E-ZPass transponders.
- South Carolina (Palmetto Pass) and Alabama (Freedom Pass): Neither South Carolina’s local Hilton Head / Southern Connector toll systems nor Alabama’s local toll bridges currently accept E-ZPass.
What to do if you get a mailed out-of-state toll bill even though you had your I-PASS in the car
Every once in a while, a customer comes back from a trip through Pennsylvania, New York, or Florida and receives a paper “Toll-By-Plate” or “Pay-By-Mail” invoice in the mailbox even though their I-PASS was stuck to the windshield the whole time. Usually, that happens because of one of three things: (1) you bought a new car or new license plate and forgot to add the new plate number to your I-PASS profile before the trip, (2) you held an unpeeled Sticker Tag in your hand instead of sticking it to the glass, or (3) your credit card expired mid-trip so your I-PASS balance temporarily hit $0.
If that happens to you, don’t just pay the inflated penalty rate blindly! Flip the paper invoice over and look for the “Already an E-ZPass / I-PASS Customer?” dispute box or web portal link. Enter your 10-digit or 11-digit Illinois I-PASS transponder/sticker serial number and proof that your account was active on the date of travel; in most E-ZPass states, the toll agency will waive the administrative invoice fee and adjust the charge down to the standard electronic E-ZPass rate.
Frequently asked questions about I-PASS compatibility
Does the new Illinois I-PASS Sticker Tag work in all E-ZPass states just like the old plastic box?
Yes, 100%! When the Illinois Tollway launched the new battery-free I-PASS Sticker Tag in 2024, it engineered the sticker to use the exact same E-ZPass-compatible RFID protocol as the rest of the network. Once you activate your new I-PASS Sticker Tag in your online account and stick it onto your windshield, just wait 24 hours for your tag number to sync across the interstate E-ZPass hub, and it will work in Indiana, Ohio, New York, Florida, and every other participating E-ZPass state.
Why doesn’t my unpeeled I-PASS Sticker Tag work when I hold it up to the windshield by hand?
This is a super cool piece of automotive radio engineering that trips up a lot of drivers! Unlike the old thick plastic box (which had its own internal battery and self-contained circuit board), the new I-PASS Sticker Tag is a passive dipole antenna specifically tuned to the dielectric constant of automotive laminated windshield glass. Until you peel the backing off and stick the adhesive flat against the inside of your windshield glass, the antenna is out of tune and cannot reflect a strong signal back to the overhead toll gantry! Always stick it directly to the glass.
If I drive through Indiana, Ohio, or Florida with my I-PASS, do I still get the 50% discount?
The 50% toll discount is an Illinois Tollway perk that applies specifically to Illinois Tollway roads (I-90, I-94, I-294, I-88, I-355, and IL-390). However, when you use your I-PASS in out-of-state E-ZPass states like Ohio, Pennsylvania, New York, or Florida, you still save a bundle because you automatically receive that state’s electronic E-ZPass / SunPass rate instead of paying steep cash rates or getting hit with $5 to $15 out-of-state Pay-By-Mail video billing fees!
A mechanic’s verdict: what to check before your next interstate road trip
Using your Illinois I-PASS outside of Illinois really is one of the easiest ways to take the stress out of a cross-country highway drive. One small transponder or sticker tag on your windshield gets you through toll plazas, bridges, tunnels, and express lanes across the Midwest, the East Coast, New England, and all the way down to Florida and Georgia without fumbling for cash or setting up five different state accounts.
Before you load up the trunk and hit the interstate, here is a quick 5-minute pre-trip checklist: First, log into your Illinois Tollway account and verify that your license plate number, vehicle description, and auto-replenish credit card are current. Second, check your windshield: if you still have an 8-year-old white plastic box, make sure its Velcro strips are clean and tight; if you upgraded to the new I-PASS Sticker Tag, make sure it is firmly adhered directly to the glass behind the rearview mirror (at least 24 hours before crossing state lines!) and completely clear of any ADAS safety cameras like Subaru EyeSight. And if you drive a luxury SUV or sedan with a solar-tinted metallized windshield, make sure the tag sits inside the dotted black frit cutout zone around the mirror so the glass doesn’t block your signal.
Here is the quick regional cheat sheet of where your I-PASS is accepted on the road:
- Midwest: Illinois (all Illinois Tollway roads + Chicago Skyway), Indiana (Indiana Toll Road + RiverLink bridges), Ohio (Ohio Turnpike), and Minnesota (Twin Cities E-ZPass Express Lanes), with Kentucky RiverLink right on the southern border.
- Northeast & New England: Pennsylvania, New York, New Jersey, Massachusetts, Delaware, Maryland, New Hampshire, Rhode Island, and Maine.
- South: Virginia, West Virginia, North Carolina, Kentucky, Florida (statewide via E-ZPass / SunPass interoperability), and Georgia (Peach Pass express lanes).