From July 1, Turkey to raise transit fee for Bosphorus and Dardanelles straits by another 15%

Starting July 1, 2025, Turkey will once again increase the transit fee for ships passing through the Bosphorus and Dardanelles straits, according to Transport Minister Abdulkadir Uraloğlu. This will be the fourth increase since 2022, following a freeze that lasted 39 years.

"As of July 1, 2025, the fee for ships transiting the Bosphorus and Dardanelles will be raised by 15% compared to the previous year's rate, reaching $5.83 per ton," said the Minister of Transport.

This marks the fourth stage of tariff revisions initiated by a presidential decree in 2022.

At that time, the first adjustment led to an increase of more than fivefold in the fees.

Previously, under the Montreux Convention regulating navigation in the straits, the fee was calculated using the gold franc (equal to $0.80). Since 2022, Turkey increased the rate to $4.08 per net tonnage and has indexed it annually since.

According to the minister, the additional revenue funds coastal services, rescue teams, and medical units.

Prior to these adjustments, transit fees through the Bosphorus and Dardanelles had not changed since 1983.