Why You’re Getting Charged for Both SunPass and E-PASS in 2026 And How to Fix It

You just opened your tolling app and realized you paid for the same bridge twice in under a minute. You are likely getting double-charged because you have two active transponders in your car, triggering the gantry sensors at the same time. This usually happens when a vehicle carries both a SunPass and an E-PASS or an out-of-state E-ZPass.

To fix this immediately, you should remove one device from your windshield and place it in an RF shield bag. You can then call SunPass at 1-888-865-5352 or E-PASS at 1-800-353-7277 to start a formal dispute. This simple step ensures the sensors only see one signal when you drive through the toll plaza.

Emergency Quick Fix Checklist

If you are seeing multiple charges right now, follow these steps to stop the bleeding.

1. Find the extra device: Check your windshield and glove box for old stickers or portable units.
2. Use a shield bag: Put the spare transponder in a Mylar bag to block the signal.
3. Check your rental: If you are in a rental car, make sure the built-in transponder box is clicked shut.
4. Sync your plate: Verify that your license plate is linked to only one active account.

The Two Transponder Trap

The technology used at toll plazas is designed to find any active signal nearby. When you have two devices in your car, the overhead sensors might wake both of them up in less than a second. This results in two separate charges for the exact same trip.

Drivers often notice a pattern called the 42-second anomaly. This is when the system registers two events at the same plaza within a very short window. Even though you only have one car, the system sees two signals and assumes two vehicles are traveling close together.

I once kept an old sticker on my windshield while using a new portable unit. The sensors read both of them and I ended up paying double for a week of commuting. It is a common mistake that is very easy to overlook until you check your bank statement.

Common Signal Conflicts

These are the most frequent ways drivers accidentally trigger multiple charges.

• SunPass PRO and E-ZPass: Having both a local and an out-of-state tag will cause sensors to bill both.
• The Rental Car Box: Many rentals have a hidden transponder that conflicts with your personal device.
• Old Sticker Residue: Even a deactivated sticker can sometimes interfere with a new portable unit.

The Rental Car Conundrum

Using a rental car in Florida during 2026 requires extra caution. Most major rental agencies use fleet programs that automatically activate when you pass a toll. If you bring your own transponder into the car, you might trigger both your account and the rental agency account.

If both devices are read, you will pay the discounted rate on your personal app. However, the rental company will also bill you at the much higher Pay By Plate rate. They often add a convenience fee of 15 dollars or more for every single toll event.

To prevent this, you should keep your personal transponder in a shield bag until you verify the rental car settings. You must also add the rental car license plate to your official E-PASS account or SunPass account with a specific start and end time. This ensures you only pay for the tolls you actually use.

Plate Recognition and Phantom Charges

Sometimes you might get a bill even if you only have one transponder. This often happens because of a system called License Plate Recognition. If your transponder fails to read, a camera takes a photo of your plate and sends an invoice to your home.

A conflict arises if the system reads your transponder, but the camera also triggers a separate event. If your plate is not perfectly synced with your account, the computer might not realize these two events are the same trip. This leads to a digital deduction and a paper bill for the same bridge crossing.

You should always verify that your vehicle information is current. If you buy a new car or get a new plate, update your profile on the official SunPass website immediately. This prevents the system from generating phantom invoices that can lead to late fees.

How to Audit Your Statements Like a Pro

The best way to catch errors is to perform a manual audit of your accounts. You should not rely on the post date of the charge because that is just when the money leaves your balance. You need to focus on the transaction date and the exact time of the event.

Follow these steps to find double charges in your history.

1. Download your data: Export your activity from both agencies into a spreadsheet.
2. Sort by time: Organize the list by the date and the time of the toll.
3. Find matches: Look for identical plaza names with times that are less than a minute apart.
4. Verify vehicle type: Make sure the system did not accidentally charge you as a large truck.

If you find a match, you have the evidence you need to get a refund. It is helpful to take a screenshot of both accounts showing the overlapping times. Most agencies are happy to fix these errors once you provide the proof.

Comparison of Florida Tolling Agencies

Choosing the right agency can save you money and reduce the risk of billing errors. While both brands work across the state, they offer different benefits for different types of drivers.

If you live in Orlando, E-PASS provides special loyalty discounts for frequent commuters. Drivers in South Florida usually prefer SunPass for its integration with local airport parking. You should choose one and remove any traces of the other from your vehicle.

Step-by-Step Guide to Filing a Dispute

If you find a double charge, you must act quickly to get your money back. Most agencies only allow you to challenge a bill within 60 days of the event. After that window closes, the charge becomes permanent and much harder to remove.

The Online Dispute Process

You can resolve most issues through the agency website or mobile app.

• Log in to your account and find the specific transaction.
• Select the option to file a dispute or contact support.
• Upload your screenshots or spreadsheet data as evidence.
• Wait for a confirmation email with your case number.

In-Person Service Centers

For complex issues like a registration stop, you might need to visit a walk-in center. These locations can help you clear up old bills and update your account details in person.

1. Tampa Center: 2056 Badlands Drive in Brandon.
2. Miami Center: 7902 NW 36th Street in Doral.
3. Orlando Center: 525 South Magnolia Avenue.
4. Boca Raton Center: 7941 Glades Road.

Keeping Your Account Safe and Clean

The best way to prevent future issues is to follow a strict one-car-one-account policy. You should decide which brand you want to use and remove any other transponders from the car. This includes peeling off old stickers that might still have an active signal.

You can also use an RF shield bag for any backup devices you want to keep. These bags block all signals and ensure the gantry sensors do not see the extra device. You can often pick these up for free at any official walk-in center.

Finally, you should enable push notifications for every toll event. This allows you to see charges in real time as you drive. If you see a double charge notification on your phone, you can pull over and address the problem before it happens again.

A Better Way to Drive Florida Roads

Managing your tolls in 2026 does not have to be a source of stress. By choosing one agency and keeping your information current, you can enjoy a smooth trip across the state. Taking a few minutes to audit your account today could save you hundreds of dollars over the next year.

The technology is powerful, but it still requires your attention to stay accurate. You should treat your toll account like a bank account and monitor it regularly for any errors. With a little bit of care, you can keep your windshield clear and your wallet full. Safe travels on the Florida Turnpike.

Pavithra Vinoth

Pavithra Vinoth is the founder of nytollsinfo.com, where she simplifies U.S. toll systems through expert insights and custom-built calculators. Her research-driven tools help drivers avoid costly mistakes and make smarter car decisions.