Your pension increases annually, every April.
This is done in line with changes in the Retail Prices Index (RPI) from the previous September, up to a maximum of 2.5%.
The same applies to any dependants' pensions.
The RBP administrator, Broadstone, will send you a letter every year to tell you what the pension increase is, and the amount of pension that you will get.
The increase in the Retail Prices Index (RPI) over the 12-month period ending September 2025 was 4.5%.