How to Properly Stick Your FASTag on Your Vehicle?

byPriyanka JuyalLast Updated: October 21, 2026
The Complete Guide on How to Stick FASTag_
  • Stick the FASTag on the inside of the windshield, at the top centre, behind the rearview mirror.
  • Clean and dry the glass first, because dust and grease weaken the adhesive.
  • Never peel off or reposition a fitted tag, since that can damage the RFID chip.
  • One FASTag is linked to one vehicle registration number.
  • You can recharge your FASTag and check its balance on the Paytm app.

Stick your FASTag sticker on the inside of your windshield, at the top centre, behind the rearview mirror. That spot gives toll plaza readers a clear view. In this article we cover where the sticker goes, how to apply it without bubbles, how to recharge it on the Paytm app and what to do if it stops scanning.

What Is a FASTag Sticker and Where Does It Go?

A FASTag sticker goes on the inside of your front windshield, at the top centre, directly behind the rearview mirror. The tag carries a small RFID chip and antenna. Readers mounted above the FASTag lane pick up that chip as your vehicle rolls through, and the toll is deducted from the prepaid account linked to the tag.

The placement is not a suggestion. Toll lane readers are angled towards that strip of glass, so a tag fixed lower down, on a side window or on the dashboard often goes unread. The rearview mirror also hides the tag from your line of sight, which keeps it from distracting you while you drive.

Most tags arrive with a protective liner on the adhesive side and the issuer’s instructions printed on the pack. Read them once before you begin. Some issuers fit the tag for you at the point of sale, and that saves you the job entirely.

Is a FASTag the Same as an RFID Tag?

Yes. FASTag is the name used for the RFID tag issued under the National Electronic Toll Collection programme, which NPCI runs with the highway authorities. People also call it an NETC FASTag or simply a toll tag. All three names describe the same sticker on your windshield.

Why Does FASTag Placement Matter at Toll Plazas?

Correct placement decides whether the toll is read automatically or whether you end up waiting at the barrier. RFID needs a clear path between the tag and the reader. When that path is blocked or angled badly, the reader misses the tag and the lane operator has to step in.

A missed read costs time for you and for every vehicle behind you. It can also lead to a cash toll at the booth, even though your FASTag account has money in it. Placing the tag correctly the first time avoids that friction on every trip.

Good placement protects the tag too. The top of the windshield sits away from wiper sweep, hands and loose items on the dashboard, so the chip is far less likely to get scratched or bent over time.

How to Stick FASTag Sticker in Car?

Sticking a FASTag takes only a few minutes. Park in shade if you can, because very hot glass can make the adhesive set unevenly. Do it in one go, since a tag you lift and press down again rarely holds as well.

What Do You Need Before You Start?

  • Your new FASTag in its sealed pack, with the liner still on.
  • A glass cleaner or a little water.
  • A clean, lint free cloth.
  • Your vehicle registration certificate, so you can match the vehicle number printed on the tag pack.

How to Apply FASTag on Car Step by Step

Step 1: Check that the vehicle number on the FASTag pack matches the number on your registration certificate.

Step 2: Clean the inside of the windshield behind the rearview mirror with glass cleaner and wipe it fully dry.

Step 3: Find the top centre spot behind the mirror, leaving a small gap from the edge of the glass and any black dotted border.

Step 4: Peel the white liner off the back of the tag without touching the sticky side.

Step 5: Place the tag on the glass from the inside, with the printed face looking out through the windshield.

Step 6: Press firmly from the centre outwards for a few seconds so no air stays trapped underneath.

Step 7: Leave the tag alone once it is fixed, and do not try to peel it off or move it.

How to Paste FASTag in Car Without Air Bubbles?

Air bubbles weaken the bond and can let the edges lift over time. Press with your thumb from the middle of the tag towards each edge, the way you would smooth a screen protector. If one small bubble stays, press it gently towards the nearest edge.

Do not add tape, glue or a second sticker over the tag. Extra layers can interfere with the signal, and a tag fixed with outside tape tends to fall off in summer heat. The adhesive on the tag is made for vehicle glass and is enough on its own.

How Can You Recharge Your FASTag on the Paytm App?

Once your FASTag is on the windshield, it needs balance before it can pay a single toll. The Paytm app lets you recharge FASTags issued by many banks and by Indian Highways Management Company, so you do not need a separate app for each issuer.

Which FASTags Can You Recharge on Paytm?

FASTag Recharge on Paytm lists a wide range of issuing banks along with Indian Highways Management Company. If you bought your tag from one of those issuers, you can top it up from the same screen. You pick your issuer from the list and the app fetches the tag linked to your vehicle number.

Recharge before you set out rather than at the plaza. FASTag balance cannot be moved from one tag to another, so add money to the tag that is actually fixed on your vehicle.

How to Recharge FASTag on the Paytm App

Step 1: Open the Paytm app and search for FASTag Recharge.

Step 2: Select the bank or issuer that gave you your FASTag.

Step 3: Enter your vehicle registration number exactly as it appears on your registration certificate.

Step 4: Tap Proceed and check the tag details shown on screen.

Step 5: Enter the recharge amount you want to add.

Step 6: Pay using UPI, a debit card or net banking and wait for the confirmation.

What Else Can You Do on the Paytm App for Your Vehicle?

  • Check your FASTag balance and past toll transactions before a long drive.
  • Pay a traffic e-challan linked to your vehicle number.
  • Pay your vehicle insurance premium when the renewal falls due.

How Is Your FASTag Linked to Your Vehicle Class?

Every FASTag is issued against one registration number and one vehicle class, such as a car, jeep or van, a light commercial vehicle or a truck. That class tells the toll plaza which rate to charge. Toll rates differ because heavier vehicles cause more wear to the road, and NHAI sets the rate for each class.

Tags are also colour coded by the type of vehicle and use. The colour you receive depends on the class shown in your registration details, so you do not pick it yourself. If the toll charged looks wrong for your vehicle, ask your issuer to check the class recorded on the tag.

How Do You Activate a FASTag on a New Vehicle?

Many new vehicles leave the showroom with a FASTag already fixed on the windshield. That tag still has to be linked to your registration number and activated with the issuer before it works. Our guide on how to activate your FASTag for convenient toll payments walks through the process, and the steps to register for FASTag cover new owners too.

Keep the mobile number on your tag current, because balance alerts and toll messages go to that number. If it has changed, the guide on how to change or update mobile number linked to your FASTag explains what to do.

What Should You Do if Your FASTag Will Not Scan or Gets Damaged?

A tag that stops scanning is usually damaged, badly placed or blocked. Look at it first. A torn tag, a lifted edge or a sticker stuck over it are the common causes, and a tag that was peeled off and pressed back almost never works again.

If the tag is damaged, lost or stolen, contact your issuing bank and ask for a replacement. The same applies when your windshield is replaced, because the old tag cannot be transferred to new glass. Ask the issuer to block the old tag so no toll is charged to it.

Can You Move a FASTag to Another Vehicle?

No. A FASTag is tied to one vehicle registration number, so it will not work correctly on another car. Using one tag across vehicles is not permitted, and the vehicle class on the tag may not match the second vehicle either.

How Do You Manage FASTags for Many Vehicles or After Selling Your Car?

Each vehicle needs its own FASTag, and each tag needs its own balance. If you run a fleet, ask your issuer whether it offers a single account that can fund several tags, since that saves recharging each one separately.

A vehicle should carry only one active FASTag. If you have older tags against the same registration number, ask the issuers to close the extra ones so you know which tag pays the toll. NHAI FASTag rules also discourage several tags on a single vehicle.

When you sell or transfer your car, ask your issuer to close the FASTag linked to it before handing over the keys. The new owner then gets a fresh tag in their own name. Many people plan this before summer road trips, when highway travel is at its busiest.

Note: Issuer rules on replacement, closure and fleet accounts differ, so confirm the details with your FASTag issuer before you act.

FAQs

Where should I stick my FASTag sticker?

Stick it on the inside of the windshield, at the top centre, behind the rearview mirror. That position gives toll readers the clearest view of the tag.

How do I stick a FASTag sticker in my car without damaging it?

Clean and dry the glass, peel the liner without touching the adhesive, and press the tag firmly from the centre outwards. Do not lift or reposition it once it is fixed.

Can I keep my FASTag on the dashboard instead of the windshield?

No. A tag kept loose on the dashboard is often missed by toll readers and can lead to a cash toll at the booth.

What happens if I remove my FASTag sticker?

Removing a fitted tag usually damages its RFID chip or adhesive, and it stops working. You will need a replacement from your issuing bank.

Can I recharge a FASTag from any bank on the Paytm app?

The Paytm app supports FASTags from many issuing banks and from Indian Highways Management Company. Select your issuer, enter your vehicle number and pay to add balance.

Can I transfer my FASTag balance to a new tag?

No. FASTag balance cannot be moved between tags, so use up the balance or ask your issuer about a refund when you close a tag.
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