When using expressways, you may occasionally encounter unpaid Hi-Pass tolls due to unforeseen circumstances. Reasons can vary, such as device errors, insufficient balance, or accidentally entering a Hi-Pass lane. When you become aware of an unpaid toll, the first step is to check the details accurately and pay promptly. Today, we will look at specific response methods and inquiry procedures for various situations where unpaid tolls occur.
You can easily check unpaid Hi-Pass tolls through the Expressway Toll website or mobile app. The most basic method is to visit the 'Expressway Toll' website operated by the Korea Expressway Corporation. After identity verification, you can immediately view your unpaid history and pay via credit card or bank transfer, making the process very convenient. If you are comfortable using a smartphone, we recommend installing the 'Expressway Toll' app to check in real-time while on the go. Using the app allows you to set up push notifications for unpaid tolls, which is more effective for immediate awareness. Also, since it may take some time for the system to reflect the data, it is best to check 1–2 days after passing through the toll gate.
Response Scenarios for Unpaid Tolls by Situation

The first situation is non-payment due to the device being powered off or the card not being inserted. In this case, a warning sound will go off or a message will appear on the electronic display when passing through the toll gate. It is very dangerous to panic, brake suddenly, or attempt to reverse. Simply pass through, and once you reach your destination, check and pay via the website or app mentioned above. As long as it is not an intentional non-payment, it will be processed the same as a regular toll, so there is no need to worry. Remember that safety is the priority while driving.
The second situation is non-payment due to insufficient balance. This often happens when using prepaid Hi-Pass cards. In this case, you can also use the immediate payment system to resolve it without any surcharges. The third situation is a toll calculation error. Occasionally, the Hi-Pass lane sensor may fail to recognize the vehicle, resulting in no toll being calculated. Please be assured that this can also be checked and resolved later. Specifically, communication errors may be caused by antenna issues or a dead battery in the device, so if this happens repeatedly, an inspection is necessary.
The fourth situation is entering a general lane instead of a Hi-Pass lane and passing through without taking a toll ticket. In this case, do not panic; call the customer service center after reaching your destination, provide your vehicle type and the entry toll gate information, and it can be processed normally. Always remember that vehicles without a Hi-Pass device or with a faulty one must use general lanes and must take a toll ticket to pay upon exiting.
Comparison of Methods for Checking and Paying Unpaid Hi-Pass Tolls

Inquiry methods are largely divided into online and offline. Refer to the comparison list below to choose the method that is most convenient for you.
- Expressway Toll Website: The most accurate method with immediate payment capability. Requires identity verification and is available 24/7.
- Expressway Toll App: Allows for checking anytime, anywhere via smartphone and utilizes the unpaid history notification feature.
- Call Center (1588-2504): If you have difficulty using the internet, you can check your unpaid history through a representative and receive a virtual account number.
- Convenience Stores and Rest Areas: If a bill has been sent, payment can be made at rest area information centers or convenience stores.
Offline payment is easier after a bill has been mailed to your home. However, rather than waiting for the bill, resolving it online as soon as you become aware of the unpaid toll is the best way to prevent surcharges. Online payments are reflected in the system in real-time, and the unpaid record is deleted immediately. Recently, mobile payment methods have become more diverse, supporting easy payment systems like KakaoPay and NaverPay, making it even more convenient.
Overlooked Precautions and Surcharge Regulations

A common question regarding unpaid Hi-Pass tolls is about 'surcharges.' If you intentionally evade tolls or repeatedly fail to pay, an additional toll equal to 10 times the original amount may be imposed under the Road Traffic Act and the Toll Road Act. A one-time simple non-payment will not incur a surcharge if paid immediately, but the problem grows if you do not pay for a long time after receiving a bill. Habitual non-payers should be aware that legal action may be taken.
Also, if you neglect unpaid records, bills will be sent by mail periodically. The driver is largely responsible for any disadvantages caused by a change of address or failure to check mail. Therefore, it is a good habit to visit the website after long-distance driving to confirm that your status is 'No unpaid history.' Additionally, if unpaid Hi-Pass records remain when selling a vehicle, it can cause issues during the transfer registration process, so it is essential to settle them before changing ownership. Since unpaid tolls are checked based on the vehicle license plate, it is also recommended to check for any unpaid history from the previous owner when purchasing a used car.
The criteria for imposing surcharges are generally related to the timing of the first and second bill notices. Late fees begin to accrue after the deadline for the first bill, and if non-payment continues after the second notice, a structure of 10 times the toll applies. In short, paying as soon as you receive the bill is the safest way financially.
Practical Preventive Measures and Management Tips
The most practical way to reduce Hi-Pass non-payment is to periodically check the status of your device. Especially before long-distance driving, you should check if the card is inserted correctly and if the balance is sufficient. If you are using a postpaid Hi-Pass card, you should also check if the card's expiration date has passed. If recognition continues to fail due to device aging, visiting the manufacturer's service center is the best way to save time and money in the long run. Recently, USB-rechargeable or constant power-connected devices are preferred over battery-replaceable ones.
Finally, you must observe the speed limit when entering a Hi-Pass lane. Entering too fast or having a short distance from the car in front increases the probability that the sensor will not recognize your vehicle. Maintaining a safe distance and entering slowly can significantly lower the possibility of non-payment. Also, be more cautious at night or during bad weather as sensor recognition rates may decrease. We hope you keep these points in mind for a safe and enjoyable expressway experience. Regular checks prevent unexpected surcharges and provide peace of mind for the driver. Always keep in mind that while unpaid tolls start as a simple mistake, indifference can lead to significant costs.
Frequently Asked Questions
Where can I check unpaid Hi-Pass tolls?
You can check and pay immediately after identity verification via the Expressway Toll website (www.hipass.co.kr) or the 'Expressway Toll' mobile app.
What happens if I don't pay the unpaid toll immediately?
Simple non-payment does not incur a surcharge if paid immediately, but if you do not pay for a long time after the bill is sent, an additional toll (10 times) may be imposed.
Can I check unpaid tolls at the call center?
Yes, you can call the Korea Expressway Corporation call center (1588-2504) to check your unpaid history and receive guidance on payment methods through a representative.
I don't have a Hi-Pass card, but I entered the lane by mistake.
Do not panic; simply pass through. You can check and pay for the unpaid toll later via the website or app, or pay through the bill that will be mailed to your home.