The short version: road tax is a state subject in India, every state charges a different percentage, and because those percentages apply to the car's price, the rupee gap explodes as cars get more expensive. We computed the full on-road price of all 178 cars currently on sale in India across 20 cities. The widest gap we found is ₹61.5 lakh on a single model. The most consequential one is on electric cars, where the country's EV push runs into a tax map that ranges from 0% to double digits.
The ₹61.5 lakh car
The Mercedes-Maybach GLS 600 Celebration Edition carries a ₹4.10 crore ex-showroom price nationwide. Register it in Gujarat and you pay ₹4.53 crore on the road. Register the identical vehicle in Kerala and you pay ₹5.19 crore.
The difference is ₹65,60,000, and all of it is tax. Gujarat charges a flat 6% road tax on every car regardless of price — ₹24.6 lakh here. Kerala's top slab is 22%, which on the same car is ₹90.2 lakh in road tax alone.
To put that ₹65.6 lakh gap in perspective: it is more than the complete on-road price of 118 of the 176 cars on sale in India. The tax difference on one luxury SUV would buy two Tata Nexons and leave change for the insurance.
This is not a Maybach problem. It is arithmetic. Percentage slabs applied to bigger numbers produce bigger gaps, so every expensive car inherits it — the Porsche 911 spread is ₹61.2 lakh, the Mercedes G-Class ₹59.8 lakh, the Range Rover ₹56.0 lakh.
The EV postcode lottery
The more consequential finding is at the other end of the price range.
India is pushing electric cars nationally, but road tax on EVs is set state by state — and several states apply it in price slabs, so the rate depends on which EV you buy as well as where:
| State | On a ₹12.5 lakh EV | On a ₹30 lakh EV |
|---|---|---|
| Delhi, Maharashtra, Tamil Nadu (to Dec 2027), Uttar Pradesh (to Oct 2027), Telangana (to Dec 2026), Haryana, Rajasthan, Chandigarh | 0% | 0% |
| Madhya Pradesh (waiver lapsed March 2026) | 4% | 4% |
| Kerala | 5% | 10% |
| Karnataka (incl. 10% cess) | 8.8% | 11% |
Delhi and Haryana exempt EVs only up to ₹30 lakh ex-showroom; above that, Delhi charges the full 10% and Haryana 5%. We are still verifying the current EV rules for Gujarat, West Bengal and Bihar, so they are left out of this table.
Tamil Nadu charges EVs nothing. Its full road-tax exemption on electric cars was extended to 31 December 2027 (G.O. Ms. No. 674, 29 December 2025) — even though it taxes petrol cars at up to 20%. An earlier version of this piece got this backwards; see the correction at the end.
Karnataka has stopped being an EV haven. It scrapped road tax on EVs in 2017 to drive adoption, began taxing EVs above ₹25 lakh at 10% in March 2024 (Karnataka Act 12 of 2024), and then ended the exemption for cheaper EVs too: Karnataka Act 29 of 2026, published on 10 April 2026, sets a lifetime tax of 5% under ₹10 lakh, 8% from ₹10–25 lakh and 10% above. The state's 10% cess on the tax amount takes those to an effective 5.5%, 8.8% and 11%. Electric two-wheelers stay exempt. For a Bengaluru buyer that is roughly ₹1.1 lakh added to a Nexon EV and ₹2.2 lakh to a BYD Atto 3, on cars that paid nothing a year ago. Kerala runs a gentler version of the same idea, 5% up to ₹15 lakh rising to 10% above ₹20 lakh.
What that does to real cars, Delhi against Bengaluru (each at its base variant's price):
| EV | Delhi | Bengaluru | Difference |
|---|---|---|---|
| Tata Punch EV | ₹10,25,055 | ₹10,78,900 | ₹53,845 |
| Tata Nexon EV | ₹13,13,450 | ₹14,23,362 | ₹1,09,912 |
| Mahindra XEV 9e | ₹22,90,550 | ₹24,83,270 | ₹1,92,720 |
| BYD Atto 3 | ₹26,13,455 | ₹28,33,367 | ₹2,19,912 |
The entire consumer case for an EV rests on recovering a higher purchase price through cheaper running. A ₹1.1 lakh swing on a Nexon EV — purely from which side of a state border you live on — moves that break-even by years. Two buyers doing identical maths about the same car will reach opposite answers, and neither is wrong.
What it means if you are buying a normal car
The gaps are smaller in the mainstream market but still real money:
| Car (base variant) | Cheapest | Costliest | Difference |
|---|---|---|---|
| Maruti Swift | ₹6,35,640 (Delhi) | ₹7,02,216 (Bengaluru) | ₹66,576 |
| Tata Nexon | ₹8,19,700 (Ahmedabad) | ₹8,89,260 (Bengaluru) | ₹69,560 |
| Hyundai Creta | ₹12,13,010 (Ahmedabad) | ₹13,51,567 (Bengaluru) | ₹1,38,557 |
Bengaluru is consistently the costliest place to put a mainstream petrol car on the road; Gujarat and Delhi are consistently among the cheapest. A Creta buyer in Bengaluru pays ₹1.39 lakh more than one in Ahmedabad for the same car at the same ex-showroom price.
The practical takeaway is narrow but useful: the ex-showroom price in an advertisement tells you very little about what you will pay. Two people quoting each other "Creta, ₹10.91 lakh" can be ₹1.4 lakh apart on the actual cheque. Check the on-road figure for your own city before you budget, and treat any national "on-road price" as fiction.
What you can and cannot do about it
You cannot shop for a state. A vehicle must be registered where its owner ordinarily resides or where it is normally kept; registering at a relative's address in a cheaper state is a false declaration, and it fails the moment you need to sell, claim insurance or transfer the car.
If you are genuinely relocating, re-registration is legitimate — but it is not free. You pay the new state's road tax on the car's depreciated value and claim a pro-rata refund from the old state, which is slow and rarely complete. Our interstate transfer calculator computes both sides for any route.
What you can do is know the number before you walk in. Every model on this site has a city-wise on-road breakup computed from the published slab for your state, with the road tax, insurance estimate and TCS shown as separate lines rather than a single "RTO charges" figure that nobody can audit.
How we computed this
On-road price = ex-showroom + state road tax + first-year insurance estimate + 1% TCS above ₹10 lakh + registration and FASTag charges. Road tax comes from each state's published slab structure, which varies by price band and fuel type; ex-showroom prices are our own two-source-verified figures, each stamped with its verification date on the model's page.
Two honest caveats. First, some states levy additional cess, entry tax or municipal charges on high-value vehicles that are not captured in a headline slab percentage, so the real gap at the luxury end may be wider still, not narrower. Second, luxury manufacturers quote pan-India ex-showroom prices, which is what makes this comparison clean — the entire difference shown here is tax, not pricing.
The full dataset behind this piece is public: every model, every city, one page each.
Correction, 28 September 2026: the first version of this piece said Tamil Nadu taxes EVs at 18–20% and named Coimbatore the costliest city for an EV. That was wrong — Tamil Nadu exempts electric cars from road tax until 31 December 2027 under G.O. Ms. No. 674 (29 December 2025). Our Tamil Nadu slabs had not been re-checked since July; every Chennai and Coimbatore EV price on the site has now been recomputed at 0%, and the EV price table that relied on the wrong rate has been removed. We are re-verifying every other state's EV rate against its notification and will correct this piece again if any differ.
Second correction, 28 September 2026: re-verifying every state against its gazette notifications found more errors in our data, now fixed across the site and in this piece. Kerala's rates were raised by the Finance Act 2025 (top slab 22%, not 21%), which moves the Maybach gap from ₹61.5 lakh to ₹65.6 lakh. Karnataka's cess is 10% of the tax, not 11%, and it has taxed EVs above ₹25 lakh since March 2024, not April 2026. Madhya Pradesh's EV waiver lapsed in March 2026; Telangana's slabs were raised in August 2025; Delhi and Haryana now exempt only EVs up to ₹30 lakh. Our models for Rajasthan (which taxes by engine size), West Bengal (a flat 10% with minimum amounts), Chandigarh (levied on the pre-GST price) and the Gujarat and Bihar EV rules are still approximations; we are correcting them next.
Third correction, 29 September 2026: our second correction said Uttar Pradesh's EV road-tax waiver had lapsed. It has not. UP amended its EV policy on 17 October 2025, and the Transport Commissioner's order of 5 November 2025 applies the exemption to pure EVs purchased and registered in UP until 13 October 2027 (hybrids are excluded). UP EVs are back at 0% across the site.