UK pensioners could get financial support through the Pension Credit, which is paid by the Department for Work and Pensions (DWP) to people who are of retirement age and on lower incomes. Experts have estimated that the average pension credit claimant could get £3,000 of support each year.
People with other responsibilities and costs may be able to get more pension credit.
For example, severely disabled people might be entitled to an additional £67.30 per week.
Pension credit claimants who are responsible for caring for another adult can get an extra £37.70.
Pensioners who are responsible for a child or young person could get an additional £65.10 pension credit for the first child in their care, and an additional £54.60 for any further children.
It may also be possible for applicants for pension credit to obtain additional amounts to help cover their housing costs.
How to claim
Britons can apply for pension credit online via the government website.
They will have their income assessed during the application to calculate if they are eligible and how much they could get.
It is also possible to make the request by telephone on 0800 99 1234 or by sending a completed application form by post to the Service Pensions.
Couples must apply for the pension credit together.