FASTag and India's new GNSS toll system, explained (2026 guide)

What FASTag is, how the new satellite-based (GNSS) tolling works, the free-20-km rule, and how to keep your toll costs down on Indian highways.

FASTag and India's new GNSS toll system, explained (2026 guide)

Tolls are a big part of the cost of any long drive in India — and the way they are collected is changing. Here is a plain-English guide to how tolling works today, what the new satellite system means, and how to pay less.

FASTag: how it works today

FASTag is a rechargeable sticker on your windscreen with an RFID chip. As you pass a toll plaza, an overhead reader deducts the fixed toll for that stretch from your linked wallet or bank account — no cash, no queue. It is mandatory on national highways, and paying by cash usually costs double.

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The shift to GNSS (satellite) tolling

India is moving to a GNSS-based, barrier-free system that uses satellite positioning (GPS and India’s own NavIC) plus an On-Board Unit in the vehicle. Instead of a flat charge per plaza, you are billed for the exact distance you actually drive on the highway. Under the revised National Highways Fee Rules, GNSS-equipped vehicles also get zero toll for the first 20 km per direction, once a day.

The rollout is gradual: it starts with trucks and buses (which already carry tracking units), runs alongside FASTag during a transition, and uses number-plate (ANPR) cameras as a backup. For most private cars, FASTag remains the day-to-day method for now.

How to keep your toll costs down

  • Keep your FASTag recharged — a blacklisted or low-balance tag can mean a penalty.
  • Know the toll before you leave. Our toll & trip cost calculator shows the exact toll, per-plaza breakdown and fuel for your route.
  • Compare route options — the shortest route is not always the cheapest once tolls are added.

Planning a specific trip? Check the full cost of popular routes like Delhi to Jaipur or Mumbai to Pune before you drive.

Image: Saddam Hussain Ansari via Wikimedia Commons (CC BY 4.0)

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