FASTag Users Alert: 7 Common Mistakes That Can Cause Problems at Toll Plazas
- byPranay Jain
- 25 Sep, 2026
FASTag has made highway travel much easier by allowing toll payments to be deducted electronically. But many motorists still face problems at toll plazas because of low balances, incorrect vehicle details or issues with the tag itself.
A few simple checks before a long journey can help you avoid unnecessary delays.
1. Don't Start a Journey With a Low FASTag Balance
One of the most common problems is insufficient balance.
Before leaving for a long trip, check your FASTag balance and recharge it if necessary. Remember that a journey may involve multiple toll plazas, so having just enough money for the first toll isn't always sufficient.
2. Check Whether Your FASTag Is Still Active
A FASTag may not work if it has been blocked, suspended or otherwise become inactive.
If your tag suddenly stops working despite having sufficient balance, check its status with the issuer rather than repeatedly trying to pass through the toll lane.
3. Keep the FASTag Properly Placed
The tag should be affixed to the vehicle's windscreen according to the issuer's instructions.
Avoid carrying it loosely in the car or placing it somewhere that prevents the toll reader from detecting it properly.
A properly positioned tag helps the system read it more reliably.
4. Check Your Vehicle Details
Make sure the vehicle registration details associated with your FASTag are correct.
If you've recently purchased a vehicle, changed registration details or replaced the windscreen, check whether any FASTag-related information needs to be updated.
5. Don't Use Multiple FASTags on One Vehicle
Using more than one active FASTag on the same vehicle can create problems.
If you have replaced an old FASTag, make sure the previous tag is properly closed or deactivated according to the issuer's process.
Keeping track of old tags can prevent confusion at toll plazas.
6. Keep Your Mobile Number Updated
Your registered mobile number is important because transaction alerts and other FASTag-related communications may be sent to it.
If you've changed your phone number, update your details with the relevant FASTag issuer.
This also makes it easier to monitor toll deductions.
7. Check Your Transaction History
Don't ignore unexpected FASTag deductions.
Regularly checking your transaction history can help you identify incorrect charges or transactions you don't recognize.
If something appears wrong, contact your FASTag issuer and keep the transaction details available when raising a complaint.
What to Do if FASTag Doesn't Work at a Toll Plaza
If your FASTag isn't being read, don't panic.
First, check whether the tag is properly positioned and whether your account has sufficient balance. If the problem continues, ask the toll-plaza staff about the available procedure and keep any relevant transaction or vehicle details.
For repeated problems, contact the FASTag issuer rather than continuing to use a faulty or inactive tag.
A Two-Minute Check Before a Road Trip
Before starting your next highway journey, quickly check:
-
FASTag balance
-
FASTag status
-
Vehicle registration details
-
Registered mobile number
-
Recent transactions
-
Whether the tag is properly attached to the windscreen
These small checks can help make your highway journey smoother and reduce the chances of being caught off guard at a toll plaza.






