FASTag Toll Issues: How to Avoid Double Charges?

Published: Tuesday, November 25, 2025, 8:15 [IST]

FASTag is India's electronic toll collection system, linked to a prepaid wallet or bank account. Since February 16, 2021, all lanes at National Highway toll plazas have been designated as FASTag lanes. Almost 98% of the vehicles in India have adopted the FasTag system.

The objective is to enable faster vehicle movement, reduce cash handling, and ensure transparent auditing of toll transactions. However, due to certain errors, people sometimes end up paying the toll fee twice. Here's a look at the steps to avoid double toll charges and what to do if such a situation arises.

FASTag Toll Issues How to Avoid Double Charges

When do double toll charges apply with FASTag?

The rules distinguish between a vehicle fault and a plaza fault. If the fault lies with the plaza’s scanner, network, or backend, the correct charge is the normal one‑way toll. If the vehicle arrives without a valid, readable, and funded tag, the law allows the toll operator to levy double the fee.

Scenario	Typical cause	Fee payable	What to ask for
FASTag valid; plaza system down	Reader offline or network outage	Single toll	Manual receipt noting “system issue”
FASTag valid; issuer bank downtime	Bank switch unresponsive	Single toll	Manual receipt with time stamp
FASTag present; insufficient balance or blacklisted	Wallet is empty or KYC lapse	Double toll	Recharge proof; update KYC
No FASTag in the vehicle	Tag never affixed	Double toll	Affix the tag before the next trip
Wrong vehicle class mapped	Back‑office error	Single toll for the correct class	Class correction request
Physical tag damaged/unreadable	Defect, tampering, or windshield change	Double toll may apply	Replace the tag and carry the invoice
Final charges depend on the notified toll for that plaza and the vehicle’s official class. GST treatment follows the current tax regime.

What to do at a toll plaza when your FASTag does not work

Stay in the FASTag lane and present the tag to the reader once more.
If it still fails and you know your wallet has a balance, request a manual receipt recording a system fault.
Note the plaza name, lane number, time, vehicle number, and the last four digits of your FASTag ID for your records.
If staff insist on a double charge despite a plaza fault, request to speak with the shift supervisor. Pay the single toll against a manual receipt if permitted.
Keep evidence such as app screenshots showing balance and recent debits. If you are charged incorrectly, file a dispute with your issuing bank and report the incident through the highway helpline 1033 the same day.

Common FASTag errors and quick fixes

Error or symptom	Likely cause	Action to take	Who to contact	Timeframe
“Low balance / Tag blacklisted”	Insufficient funds	Recharge wallet; enable auto‑debit	Issuer bank/app	Minutes after recharge
“KYC incomplete / Tag inactive”	KYC not updated	Complete KYC with a valid ID	Issuer bank	Same day to 48 hours
No beep; no deduction	Reader or network fault	Ask for a manual receipt noting the fault	Toll supervisor	Immediately at the plaza
“Vehicle class mismatch”	Wrong class linked to tag	Raise a correction request with RC copy	Issuer bank	Two to seven days
“Tag not mapped / Invalid tag”	Back‑office linking error	Re‑map the tag to account	Issuer bank	One to three days
Tag physically damaged	Wear, heat, or windshield change	Order replacement; deactivate old tag	Issuer bank	Three to seven days
Refund timelines for wrongful deductions are not published centrally and vary by issuing bank; ask your issuer for written turnaround times.

How to Avoid Double Toll Fee

Enterprises with tight schedules should maintain two FASTags per fleet.
Enable auto‑recharge with a minimum balance cap.
Always check your FASTag balance before every trip.
If FASTag errors occur repeatedly, consider switching to a more reliable operator.
Protect your FASTag from physical damage.
If you own multiple vehicles, avoid tag mismatch or confusion.