
The Miami-Dade Expressway Authority operates several expressways in Miami-Dade County. All the expressways are toll roads and the tolls pay for road maintenance.
PayMDXTolls Online
It’s easy to PayMDXTolls online.
You can get started by visiting their website.

https://paymdxtolls.com/MDXWeb/onlineServiceCenter/index
Click “Login” in the top center of the page. This brings you to their login page.
Log into PayMDXTolls Online
For PayMDXTolls online, from the login page enter your license plate state and number.
You also need to enter either your account number, your driver’s license number, or your notice number, and then click the green “Login” button.

https://paymdxtolls.com/MDXWeb/login
Follow the prompts to make you MDX toll payment.
Other Ways to Pay Your MDXTolls Bill
You can choose another option to pay your MDXTolls bill.
- Pay by mail: Send a check or money order to:
Miami-Dade Expressway Authority
P.O. Box 865009
Orlando, FL, 32886-5009.
MDXTolls Customer Service
For help with any questions you have regarding your MDX toll bill, you can call customer service at 1-855-277-08-48. You can reach them Monday through Friday from 7:00 a.m. to 7:00 p.m. They are closed on major holidays. Mondays are their busiest days, so you may want to call them Tuesday through Friday.
You can reach them by mail at Miami-Dade Expressway Authority, P.O. Box 22826, Hialeah, FL, 33002-2826. You can also reach them online by visiting their website. Click on “Online Service Center” and then click “Contact Us.” Enter your name, email address, phone number, license plate number, and message.
Click the green button on the bottom right reading “Send Message.”
MDXTolls FAQs
How do I dispute my bill?
How do I get a SunPass?
A SunPass allows you to automatically pay your tolls. You can buy one at Publix, AAA, Navarro Discount Pharmacy, Sedano’s Supermarket, or CVS. You can save 15 cents per toll by using a SunPass. You can also buy a SunPass online by visiting website: www.sunpass.com
How do I pay if I’ve rented a car?
Many rental companies have an arrangement with SunPass. When you rent your vehicle, talk to the company about their arrangements for paying tolls.
How did they find my address to send me a bill?
They take a picture of your license plate when you go through the toll plaza. They look up your plate number and then send you a bill to the address. You will get a bill for each toll that you owe.
Where does SunPass work?
You can use SunPass on most toll roads throughout Florida. Unfortunately, SunPass doesn’t work in different states.