Tamil Nadu Road Tax Calculator (2026)
Estimate motor vehicle road tax, RTO registration charges, and total on-road price addition for cars and two-wheelers in Tamil Nadu.
Calculate road tax, RTO registration charges, and total on-road addition for cars and bikes across Indian states — petrol, diesel, CNG, and EV.
Estimates are based on standard 2026 state RTO slabs and may vary due to state-specific cesses or recent policy changes. Always verify the final amount with your local RTO before making a purchase decision.
Tamil Nadu Motor Vehicle Tax Slabs (2026)
Petrol Cars
12% (≤ ₹5L), 13% (₹5L–₹10L), 18% (₹10L–₹20L), 20% (> ₹20L)
15-year Lifetime Tax (LTT)
Diesel Cars
12% (≤ ₹5L), 13% (₹5L–₹10L), 18% (₹10L–₹20L), 20% (> ₹20L)
Calculated on ex-showroom invoice
Electric Vehicles (EV)
100% Tax Exemption policy window active for electric vehicles registered through 31 Dec 2027 (standard standing rate is 5% <10L / 7.5% >10L)
Under state clean mobility policy
Official Transport Portal
Transport Department, Government of Tamil Nadu (tn.gov.in/transport)
Official Transport SiteUnderstanding Motor Vehicle Taxation in Tamil Nadu
Vehicle owners across Tamil Nadu (Chennai TN-01 to TN-22, Coimbatore TN-37/38, Madurai TN-58/59, and regional transport offices) pay lifetime tax under the Tamil Nadu Motor Vehicles Taxation Act. The official new-vehicle page lists four car bands: 12% up to ₹5 Lakhs, 13% above ₹5L and up to ₹10L, 18% above ₹10L and up to ₹20L, and 20% above ₹20L.
Two-wheelers use 10% up to ₹1 Lakh and 12% above ₹1 Lakh. Tamil Nadu has also notified a 100% motor-vehicle-tax exemption for battery-operated vehicles during the applicable policy period; buyers should confirm eligibility for the registration date.
Tax Calculation & Slab Mechanics
Road tax in Tamil Nadu is calculated as lifetime tax on vehicle cost. Under the current estimator, a ₹9 Lakh car uses 13% (₹1,17,000), while an ₹18 Lakh car uses 18% (₹3,24,000). Registration, road-safety and service charges are shown separately where applicable and should be confirmed on the official portal.
RTO Registration Procedure & Vahan System
The Tamil Nadu Transport Department processes all private vehicle registrations via the centralized Vahan system, enabling automated tax receipt generation and digital RC issuance.
Key RTO Guidelines for Tamil Nadu Vehicle Owners
- Tamil Nadu taxes private vehicles on a 15-year Life Time Tax (LTT) system across TN RTO circles (TN-01 to TN-99).
- ⚠️ EV Policy Highlight: Tamil Nadu has extended a 100% road tax exemption for all battery electric vehicles registered between 1 January 2026 and 31 December 2027 (otherwise standard reduced rates of 5% < ₹10L and 7.5% > ₹10L apply).
- Green Tax: Vehicles older than 15 years attract a green tax of ₹2,000 for private vehicles and ₹4,000 for commercial vehicles at fitness renewal.
- Two-wheelers attract 8% flat (or tiered 10-12% for premium motorcycles).
Frequently Asked Questions About Tamil Nadu Road Tax
Clear answers on slabs, diesel surcharges, EV exemptions, and RTO registration.
Under the Tamil Nadu Electric Vehicle Policy, the state has extended a 100% road tax exemption for all battery electric vehicles (both private and commercial) registered between 1 January 2026 and 31 December 2027. Outside this special window, standing reduced EV rates are 5% (< ₹10L) and 7.5% (> ₹10L).
Official Disclaimer & Rate Notice
Rates shown are indicative and sourced from public references, last reviewed on August 2026. Always verify current rates with Tamil Nadu's official Transport Department, Government of Tamil Nadu (tn.gov.in/transport) before making a vehicle purchase decision.
Compare Tamil Nadu with Other State Road Tax Slabs
Explore how motor vehicle tax and RTO registration fees differ across other Indian states.
Maharashtra
Petrol Car: 9% – 11%
EV Status: 100% Tax Exemption for qualifying electric vehicles
Karnataka
Petrol Car: 13%
EV Status: Tiered estimate: 4% below ₹25L and 8% from ₹25L; verify the current notification before purchase
Delhi
Petrol Car: 4%
EV Status: 100% exemption up to ₹30L
Uttar Pradesh
Petrol Car: 8%
EV Status: 100% Full Tax Exemption for Electric Vehicles
Tamil Nadu
Petrol Car: 12%
EV Status: 100% Tax Exemption policy window active for electric vehicles registered through 31 Dec 2027 (standard standing rate is 5% <10L / 7.5% >10L)
Planning Other Vehicle Expenses?
Calculate your monthly fuel budget or check EV vs Petrol cost savings.