The 15-year question: what's actually happening to old vehicles in Bengal
28 October 2026
If you've been looking at an older vehicle — anything approaching or past fifteen years — you've probably heard something about a "green tax" or rules that might force it off the road. What's actually been decided, what's been proposed, and what's still just discussion, is genuinely confused right now, and we'd rather tell you that plainly than pretend to a confidence we don't have.
What's been raised, as far as we can tell
The National Green Tribunal's Eastern Zone Bench has, at various points, directed that vehicles older than 15 years in West Bengal — including Kolkata and Howrah specifically — be phased out, with the state government pushing back on the practicality of doing that within a short timeframe, given the sheer number of such vehicles on the road here. Separately, the central government has circulated proposals for a green tax applied at registration renewal past 15 years for private vehicles, with rates varying by fuel type and some exemptions floated for CNG, electric, and hybrid vehicles. These are proposals that were sent to states for input, which is a different thing from a notified, enforced rule.
What this means if you're buying
Regardless of exactly where this lands, the direction of travel is fairly clear: an older vehicle carries more regulatory uncertainty today than it did five years ago, and that uncertainty is itself worth pricing in, even before any rule is finalised. A vehicle at twelve or thirteen years old now has a real question mark over how many more years of trouble-free registration it has left, in a way that wasn't really a consideration a decade ago. Checking what the registration number itself tells you is a reasonable place to start sizing up an older vehicle.
What we're not going to tell you
We're not going to quote you a specific tax rate, a specific date, or a specific age cutoff, because every number we've seen reported varies by source and several describe themselves as proposals rather than notified rules. Anyone telling you a confident, specific figure right now is either closer to an official notification than the public reporting we've found, or guessing. Before you commit to an older vehicle on the strength of "it'll probably be fine," check directly with your RTO or the West Bengal Transport Department for whatever the current, actual position is — it changes, and it's worth five minutes of a phone call rather than relying on what a seller or a forum post tells you.
The practical upshot
None of this means don't buy an older vehicle — plenty of well-maintained ones are still a perfectly sensible purchase, often at a genuinely attractive price precisely because of this uncertainty. It means go in with your eyes open about what you don't know, and don't let a confident-sounding seller substitute for actually checking.
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