RTO Tax Calculator Assam 2026
Calculate road tax, registration charges, and on-road price for vehicles in Assam. Updated for 2026.
Compare with Neighboring States
Click any state to compare rto tax rates side-by-side.
Assam RTO Road Tax Rates 2026
| Vehicle Type | Tax Rate | Registration Fee | HSRP Charge |
|---|---|---|---|
| Petrol Car (All Prices) | 5% | ₹600 | ₹400 |
| Diesel Car (All Prices) | 6% | ₹600 | ₹400 |
| CNG Car (All Prices) | 5% | ₹600 | ₹400 |
| Electric Vehicle (EV) | 0% (Exempt) | ₹600 | ₹400 |
| Two-Wheeler Petrol | 4% | ₹300 | ₹200 |
| Auto Rickshaw | 4% | ₹500 | ₹400 |
| Commercial Vehicle | 6% | ₹1,000 | ₹400 |
Use our interactive RTO tax calculator for Assam
Open Calculator →Vehicle Registration Process in Assam
Vehicle registration in Assam is managed by the Assam State Transport Department with RTO offices in all major districts including Guwahati, Jorhat, Dibrugarh, Silchar, Tezpur, and Nagaon. The registration process follows the Central Motor Vehicle Rules 1989 with state-specific tax rates applicable under the Assam Motor Vehicles Taxation Act.
New vehicles come with a temporary registration from the dealer valid for 30 days. During this period, you must visit the designated RTO with all required documents for permanent registration. The RTO officer verifies the vehicle physically, checks the chassis and engine numbers, and upon approval, assigns a registration number in the AS-XX format. The Registration Certificate (RC) is issued electronically via the VAHAN portal.
Required Documents for Registration
- Form 20 (duly filled application)
- Form 21 (Certificate of Sale from dealer)
- Form 22 (Manufacturer's Certificate of Roadworthiness)
- Insurance Certificate (at least third-party cover)
- Proof of Address (Aadhaar, Voter ID, Passport)
- Proof of Identity (Aadhaar, PAN, Driving Licence)
- Original Invoice and delivery receipt
- PUC Certificate (Pollution Under Control)
- HSRP booking confirmation
- Passport-size photographs (2 copies)
How Road Tax Is Calculated in Assam
Assam follows a flat-rate road tax system, which means the tax percentage does not change based on the vehicle price. Petrol cars are taxed at a flat 5% of the ex-showroom price, diesel cars at 6%, and CNG vehicles at 5%. This simplicity makes Assam one of the more affordable states for vehicle registration, especially for high-value cars.
For instance, a ₹8 lakh petrol car in Assam attracts ₹40,000 in road tax (5%). A ₹20 lakh diesel SUV would cost ₹1,20,000 in road tax (6%). Compare this to a slab-based state like Karnataka where the same ₹20 lakh diesel vehicle could attract upwards of ₹3 lakh in tax. The flat-rate structure makes Assam particularly attractive for buyers of premium vehicles.
EV Policy and Exemptions in Assam
Assam provides full road tax exemption for electric vehicles under the Assam Electric Vehicle Policy 2021. The policy aims to have 25% of all new vehicle registrations as EVs by 2026. EV buyers save the entire road tax amount, which can be significant. The state is also setting up charging stations across Guwahati and major highways through public-private partnerships. The exemption covers battery electric cars, two-wheelers, three-wheelers, and electric buses.
Two-Wheeler Taxation
Two-wheelers in Assam are taxed at 4% of the ex-showroom price, with registration fees of ₹300 and HSRP charges of ₹200. This low rate is designed to keep personal mobility affordable. Assam has a high density of two-wheelers, particularly in urban centres like Guwahati where traffic congestion makes bikes a practical choice.