From the age of 55 you can retire and start to receive your pension. There are also other reasons for retirement. Futher information can be found on the different types of retirement:
If you retire before normal pension age (normally the later of age 65 or your state pension age) on any grounds except for redundancy or ill health, your pension benefits may be reduced.
Please see rule of 85 below for details of the reductions and how they work.