What SunPass is and how it charges your account

SunPass is Florida's electronic toll collection system. Instead of stopping at a toll booth to pay cash, you mount a small transponder (a radio device) on your windshield. When you drive through a toll plaza, the transponder communicates with readers that deduct the toll from your prepaid account automatically.

You fund your SunPass account in advance by adding money to it. Every time you pass through a toll, the system deducts the toll amount from your balance. When your balance drops below a certain threshold, you can add more money online, by phone, or through the mail. The toll amount varies by road and distance — some tolls cost $0.50, others several dollars depending on the highway and time of day.

SunPass works on Florida's Turnpike, the Sunshine Skyway Bridge, the Beachline Expressway, and dozens of other toll roads across the state. If you drive the same routes regularly, SunPass saves you time by eliminating the stop at a toll booth.

Key Takeaways

  • SunPass requires a transponder mounted on your windshield that communicates with toll plazas to charge your account automatically.
  • You prepay money into your SunPass account, and tolls are deducted each time you pass through a toll plaza.
  • You can add money to your account online at sunpass.com, by calling 1-888-865-0000, or by mail.
  • If your transponder is lost, stolen, or damaged, you can request a replacement through your SunPass account or by phone.
  • SunPass offers discounts on some toll roads compared to paying cash at a toll booth.

Getting a SunPass transponder

To use SunPass, you first need a transponder. You can order one online at sunpass.com by creating an account, entering your vehicle information, and choosing a payment method. You can also pick up a transponder in person at a SunPass customer service center or at certain retail locations across Florida.

When you order online, the transponder is mailed to you. Installation is straightforward — you peel off the backing and stick it to the inside of your windshield, usually on the driver's side near the top. The transponder has a battery that lasts about seven years, after which you can request a replacement.

There is typically a small fee to purchase a transponder, though the exact cost varies. Once you have the transponder, you set up your account with a prepaid balance and your payment method so tolls can be deducted automatically.

Adding money to your SunPass account

You can add funds to your account three ways: online, by phone, or by mail. The online method is fastest — log into your account at sunpass.com, select "Add Funds," enter the amount you want to add, and pay with a credit or debit card. The money is usually available within minutes.

By phone, call 1-888-865-0000 and speak with a customer service representative who can process your payment over the phone using a credit or debit card. By mail, you can send a check or money order to the SunPass office address listed on your account statement, though this method takes longer because of mail delivery time.

Many accounts are set up for automatic replenishment, which means money is added to your account automatically when your balance falls below a set amount. You choose the replenishment threshold and the amount to add each time. This prevents your account from running empty while you are driving.

What happens if your transponder stops working

If your transponder is damaged, lost, or stolen, you can request a replacement through your SunPass account online or by calling 1-888-865-0000. There is typically a replacement fee. When you request a replacement, your existing account balance transfers to the new transponder, so you do not lose the money you prepaid.

If your transponder malfunctions but you still have it, you can troubleshoot by checking that it is properly mounted on your windshield and that the battery has not died. If the problem persists, contact SunPass customer service for a replacement.

While waiting for a replacement transponder to arrive, you can still use toll roads by paying at a toll booth with cash or a credit card. However, you will not receive the SunPass discount on those tolls.

SunPass discounts and toll rates

SunPass users typically pay less per toll than drivers who pay cash at a toll booth. The discount varies by road — on some highways, SunPass users save 25 to 50 percent compared to cash rates. The exact discount depends on which toll road you are using and the distance traveled.

Some toll roads also offer time-of-use pricing, where tolls are lower during off-peak hours and higher during rush hour. SunPass users see these variable rates applied automatically based on when they pass through the toll plaza.

You can view your toll history and rates charged in your SunPass account online. This shows you every toll transaction, the amount charged, and your remaining balance.

Linking multiple vehicles to one SunPass account

If you own more than one vehicle, you can link multiple transponders to a single SunPass account. Each transponder is registered to a specific vehicle, but they all draw from the same prepaid balance. This simplifies account management because you only need to add funds once instead of maintaining separate accounts for each car.

To add another vehicle, log into your account at sunpass.com, select the option to add a vehicle, and enter the new vehicle's license plate and registration information. You can then order a transponder for that vehicle or pick one up in person. The new transponder will be linked to your existing account automatically.

Frequently Asked Questions

Can I use SunPass on toll roads outside of Florida?

SunPass works only on Florida toll roads. If you travel to other states with toll roads, those states have their own toll collection systems. Some states have reciprocal agreements with Florida, meaning your SunPass transponder may work on certain out-of-state toll roads, but this is limited and varies by state.

What if I drive through a toll plaza and my transponder does not work?

If your transponder fails to register, the toll plaza cameras photograph your license plate and you will receive an invoice by mail. You can pay the invoice online, by phone, or by mail. The amount charged is typically higher than the SunPass rate because it is treated as a toll-by-plate transaction rather than a prepaid toll.

How do I check my SunPass balance?

Log into your account at sunpass.com to view your current balance, recent transactions, and toll history. You can also call 1-888-865-0000 to speak with a representative who can tell you your balance over the phone.

Can I transfer my SunPass account if I move out of Florida?

If you move out of Florida and no longer use Florida toll roads, you can close your account and request a refund of any remaining balance. Contact SunPass customer service by phone or through your online account to process the closure and refund.

What is the difference between SunPass and toll-by-plate?

SunPass is a prepaid system where you mount a transponder and maintain an account balance. Toll-by-plate is a system where the toll plaza photographs your license plate and sends you an invoice by mail. SunPass is faster, cheaper, and does not require you to receive invoices in the mail.