The West of England board has agreed to apply a 7.5% surcharge to all mutual protection and indemnity rates at the next policy renewal.
Further premium adjustments will be made to reflect individual members claims performance and risk profile.
The move comes as P&I clubs look for different ways to secure higher premium from members to address underwriting losses.
Steamship Mutual recently announced a traditional general increase where it has set a target to increase premium income.
