The Ministry of Transport has set the toll fees for the "Prachimrataya" expressway at 80-145 baht, effective December 15, 69.

The Ministry of Transport announced the toll rate for the Prachimrataya Expressway: 80 baht for vehicles with no more than 4 wheels, effective December 15, 2026. Nine categories of vehicles are exempt from tolls.

On September 14, 2026, the Royal Gazette published the Ministry of Transport's announcement regarding the designation of the Prachimrataya Expressway as a toll road, the types of vehicles subject to or exempt from tolls, and the toll rates, B.E. 2569 (2026).

At its 8th meeting of 2026 on July 14, 2026, the Board of Directors of the Expressway Authority of Thailand considered the terms and conditions of the concession agreement for investment, design, construction, management, service, and maintenance of the Si Ratch – Bangkok Outer Ring Road Expressway project between the contracting company and the Expressway Authority of Thailand (Prachimrataya Expressway), and therefore determined the toll rates for the Prachimrataya Expressway in accordance with Section 19 of the Expressway Authority of Thailand Act B.E. 2550 (2007).

Pursuant to the authority granted by Sections 5 and 39 of the Expressway Authority of Thailand Act, B.E. 2550 (2007), the Minister of Transport hereby issues the following announcement:

• Article 1 This announcement is called "Announcement of the Ministry of Transport Regarding the Designation of the Prachimrataya Expressway as a Toll Road, Types of Vehicles Subject to or Exempted from Tolls, and Toll Rates, B.E. 2569 (2026)".
• Article 2 This announcement from the Ministry of Transport shall be effective from December 15, 2569 onwards.
• Article 3 The Ministry of Transport's announcement regarding the designation of the Si Ratch - Bangkok Outer Ring Road Expressway as a toll road, the types of vehicles subject to or exempt from tolls, and the toll rates, issued on November 18, 2021, is hereby revoked.
• Article 4 The Prachimrataya Expressway shall be a toll road.
• Article 5 Vehicles listed in the toll-paying vehicle categories attached to this announcement are considered toll-paying vehicles.
• Article 6 Vehicles listed in the category of vehicles exempt from expressway tolls at the end of this announcement are considered to be exempt from expressway tolls.
• Article 7 The toll fee shall not exceed the rates specified in the toll rate schedule attached to this announcement.
• Article 8 Motorists using expressways must pay tolls at the rates announced and approved by the Expressway Authority of Thailand Board of Directors at toll collection points designated by the Expressway Authority of Thailand.
• Article 9 Users of the Prachimrataya Expressway who wish to access the Si Ratch Expressway (Chaengwattana – Bang Khlo and Phaya Thai – Srinakarin Expressways) and the Chalerm Mahanakorn Expressway (Din Daeng – Port, Bang Na – Port, and Dao Khanong – Port Expressways) must pay tolls at the Bang Sue 2 toll plaza according to the rates announced by the Ministry of Transport. This announcement specifies that the Chalerm Mahanakorn and Si Ratch Expressways are toll roads, the types of vehicles subject to or exempt from tolls, and the toll rates themselves.

The types of vehicles subject to tolls are divided into 7 categories: private and public vehicles as defined by the Motor Vehicle Act, with 2 axles and no more than 4 wheels; trucks, light trucks, and light buses with 2 axles and no more than 4 wheels; medium-sized trucks with 2 axles and more than 4 wheels; large trucks with 3 axles; medium-sized buses with 2 axles; large buses with 3 axles; as well as trailers and extra-large vehicles with 3 axles or more.

While there are nine types of vehicles exempt from expressway tolls, these include vehicles in royal processions of the King or Queen, vehicles in royal processions of members of the Royal Family from the rank of Prince or Princess upwards, vehicles in royal processions of members of the Royal Family of the rank of Prince or Princess, vehicles in the royal procession of the Supreme Patriarch, and vehicles of the Regent acting on behalf of the King.

This also covers fire trucks and ambulances authorized by the National Police Chief to use flashing lights or sirens only while on duty, National Police vehicles used on expressways, Ministry of Defence vehicles used to transport troops or equipment, and other vehicles exempted from expressway tolls.

The toll rates for expressways are determined based on the number of wheels of the vehicle and are divided into three levels: vehicles with no more than 4 wheels, the toll is 80 baht per vehicle; vehicles with more than 4 but no more than 10 wheels, the toll is 130 baht per vehicle; and vehicles with more than 10 wheels, the toll is 145 baht per vehicle.

Users of the Prachim Ratthaya Expressway who wish to continue their journey onto the Si Ratch Expressway, including the Chaeng Wattana–Bang Khlo and Phaya Thai–Srinakarin routes, as well as the Chalerm Mahanakorn Expressway, including the Din Daeng–Port, Bang Na–Port, and Dao Khanong–Port routes, will have to pay additional tolls at the Bang Sue 2 toll plaza according to the rates set for the Si Ratch Expressway and the Chalerm Mahanakorn Expressway.

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