Prachim Ratthaya Expressway Tolls to Increase Starting December 15, 2026

According to a report by Prachachat Business, the Thai Ministry of Transport has officially announced an increase in toll fees for the Prachim Ratthaya Expressway, commonly known as the Si Rat-Outer Ring Road Expressway. The new rates are scheduled to take effect on December 15, 2026, following the publication of the announcement in the Royal Gazette.

Under the new fee structure, passenger vehicles (four-wheeled vehicles) will see their toll increase from 65 baht to 80 baht. For larger vehicles, specifically those with ten wheels or more, the toll will be set at 185 baht.

For residents and frequent commuters in Bangkok, this adjustment represents a notable increase in daily travel costs. Travelers planning to use this route should update their travel budgets accordingly to account for these higher transit expenses. While the Ministry of Transport has confirmed the implementation date and the new pricing tiers, commuters may wish to monitor official government channels for any further operational details or potential adjustments to payment methods. As of now, the focus remains on the upcoming implementation of these revised rates as stipulated by the Ministry's recent decree.