State pension UK: You can backdate payments but a time limit is in effect – check now | Personal Finance | Finance
It is also possible to claim a state pension while choosing to still work, potentially boosting income in retirement.
As it stands, men born on or after April 6, 1951, or women born on or after April 6, 1953 can claim the new state pension.
If a person reached state pension age before April 6, 2016, they will receive state pension under the old rules instead, known as the basic state pension.
Once a person claims their state pension, the initial payment should come through within five weeks.