Motor Expo 2026

Vehicle inspection: In addition to users regularly checking according to mileage and self-checking, after using the vehicle for some time, it is still very important to check its condition in another way, which is "vehicle inspection before annual tax payment" The annual vehicle inspection, or what many people are familiar with as Sor Ror Or vehicle inspection, is considered a vehicle inspection before paying vehicle tax. 

Why must vehicles be inspected before paying annual tax?

Because the Motor Vehicle Act B.E. 2522 (1979) states that “Vehicles to be used for transportation under the Land Transport Act B.E. 2522 (1979) or registered under the Motor Vehicle Act B.E. 2522 (1979) must be stable, strong, and have characteristics, sizes, and accessory equipment conforming to the ministerial regulations. This is for the safety of the driver, passengers in that vehicle, drivers of other vehicles, pedestrians, as well as various environmental conditions.” Therefore, we who wish to use motor vehicles must comply with what is stipulated in the Motor Vehicle Act B.E. 2522 (1979). The Department of Land Transport is responsible for vehicle inspection for both vehicles registered under the Land Transport Act B.E. 2522 (1979) and the Motor Vehicle Act B.E. 2522 (1979).

1. Vehicles required to undergo inspection before annual tax payment

1.1 All types of vehicles under the Land Transport Act, regardless of age.
1.2 Vehicles under the Motor Vehicle Act, of the following types:
Private passenger cars with not more than 7 seats, 7 years old or older
Private passenger cars with more than 7 seats, 7 years old or older
Private pickup trucks, 7 years old or older
Motorcycles, 5 years old or older

2. Inspection locations

2.1 For all types of vehicles registered under the Land Transport Act, the owner may take them for inspection at a private vehicle inspection station (Sor Ror Or) authorized by the Department of Land Transport, or at a Department of Land Transport office.
2.2 For vehicles registered under the Motor Vehicle Act, including private cars and motorcycles, inspection must be conducted only at a vehicle inspection station (Sor Ror Or) authorized by the Department of Land Transport.

Exceptions

1 Vehicles with an unladen weight exceeding 1,600 kilograms can be inspected at a Sor Ror Or station or a Department of Land Transport office.
2 Vehicles belonging to government agencies, diplomatic missions, consular missions, international organizations, etc., can be inspected at a Sor Ror Or station or a Department of Land Transport office.
3 Vehicles with modified conditions, vehicles with changed color or engine, vehicles with issues concerning chassis numbers or engine numbers, vehicles with expired registration for more than 1 year, etc. (details in item 7) must be taken for inspection at a Department of Land Transport office.

3. Inspection period

For vehicle inspection, owners can bring their vehicles for inspection up to 3 months before the annual tax expiration date.

4. Inspection fees

Motorcycles: 60 Baht per vehicle
Vehicles with an unladen weight not exceeding 1,600 kilograms: 150 Baht per vehicle
Vehicles with an unladen weight exceeding 1,600 kilograms: 250 Baht per vehicle
When contacting a vehicle inspection station, the vehicle owner must present the vehicle and its registration book. If the inspection result shows that the vehicle passes the inspection criteria, the vehicle inspection station will issue a vehicle inspection certificate in the form prescribed by the Department of Land Transport. If the vehicle does not pass the inspection criteria, the vehicle inspection station will inform the owner of the defects that caused the vehicle to fail the inspection, so that the vehicle can be repaired and brought back for re-inspection. If repaired and brought back for inspection at the same private vehicle inspection station within 15 days, a re-inspection fee will be charged at half the prescribed service rate. However, if it exceeds 15 days or is inspected at another private vehicle inspection station, the full service rate will be charged.

5. Calculating vehicle age

To calculate the vehicle's age, count the registration age from the date of initial registration until the annual tax expiration date (the due date for annual tax payment).

6. Conditions regarding vehicle type, make (brand), and size that private vehicle inspection stations can service

Each private vehicle inspection station must inspect vehicles according to the type (make), category, and size as applied for and authorized by the Central Registrar. For example, inspecting cars with an unladen weight not exceeding 1,600 kilograms of all makes, or inspecting motorcycles of specific makes, or inspecting cars with an unladen weight not exceeding 1,600 kilograms and exceeding 1,600 kilograms, and motorcycles of all makes, etc. In cases where only certain types (makes) of vehicles are inspected, a clearly visible sign must be displayed to inform the public who come for service. If any private vehicle inspection station wishes to inspect vehicles of a type, make, and size different from what is authorized by the Central Registrar, a written request for permission must be submitted to the Central Registrar for case-by-case consideration.

7. Vehicles that must be taken to the registrar for inspection at a Department of Land Transport office 

(Private vehicle inspection stations cannot perform these inspections)

Vehicles with modifications different from their registered condition
Vehicles with changed color or altered body or any part of the vehicle from the registered details in the vehicle registration book (e.g., changed engine, changed vehicle type, changed fuel type, etc.)
Vehicles with issues concerning chassis numbers or engine numbers (e.g., numbers not visible, damaged numbers, or traces of alteration, scratching, erasing, or fading that prevent verification, etc.)
Vehicles whose owners have reported temporary non-use or permanent non-use
Old vehicles with old-style license plates (e.g., Kor Thor-00001, Kor Thor Jor-0001, etc.), which must have their license plates changed when annual tax is paid.
Vehicles that were stolen and later recovered.
Vehicles with expired annual tax (lapsed registration) for more than 1 year.

8. Warning!

1 In cases where the licensee fails to comply with the criteria, procedures, and conditions specified in the ministerial regulation issued under Section 74 of the Land Transport Act B.E. 2522 (1979), the Central Registrar may revoke such license.

2 Any licensee who fraudulently or intentionally issues a vehicle inspection certificate that is not truthful shall be guilty and liable to imprisonment for not exceeding two years and a fine not exceeding forty thousand Baht, and the Central Registrar has the authority to revoke the license of such vehicle inspection station.
3 Any person who, in the exercise of any profession, makes a false certification document in a manner likely to cause damage to others or the public, may be guilty under Section 269 of the Penal Code, which carries a penalty of imprisonment not exceeding two years, or a fine not exceeding forty thousand Baht, or both imprisonment and fine.

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Note: ***Vehicles that can renew tax online must be passenger cars, pickup trucks, or vans not older than 7 years, and motorcycles not older than 5 years.*** ​Click here!