
How to use it
Type the day, month and year of birth. If the date is before 6 December 1953, the tool also asks for legal sex, because until then the law set different ages for men and women. After that date it is the same for everyone.
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Once the date is known, the name print sets their name, job, years and workplace in type under Happy Retirement.
See all sizes and pricesYou get the day State Pension age is reached, the age that means, and how many days away it is. Under the tool, "The whole table in the law" opens every row the calculator uses.
How it is worked out
The ages are set by Schedule 4 to the Pensions Act 1995, as changed by the Pensions Acts of 2007, 2011 and 2014. It has a rule for each range of birth dates. Some ranges reach State Pension age at a set age, on a birthday. Others reach it on a fixed day written into the law, so people born a month apart can be months apart in the answer.
The calculator reads that table from legislation.gov.uk every night and checks it before using it. The line under the tool says when it was last checked. If the checks fail for long, the page says the table is being re-checked, and you should rely on GOV.UK.
Three birthdays at the end of a month have their own day in the law, and the calculator uses those. A 29 February birthday reaches an age on 1 March in a year with no 29 February. That is what GOV.UK's checker gives too.

What it does not tell you
This is the age, not the amount. GOV.UK says you can keep working after State Pension age, and that the old forced retirement age of 65 no longer exists. For how much someone will get, GOV.UK has a State Pension forecast. Its checker also gives the Pension Credit qualifying age and when you can get a bus pass.
The table here is the one legislation.gov.uk shows for England, Wales and Scotland. In Northern Ireland, use GOV.UK's checker.
Once the date is known, the retirement countdown counts the days, and the years of service calculator works out the years for the card and the print.

Sources
- Pensions Act 1995, Schedule 4, legislation.gov.uk, read 30 October 2026 (the site said it was up to date with changes in force on or before that day). Re-read every night.
- GOV.UK, Check your State Pension age, read 30 October 2026. We checked fifteen dates of birth against it, including the month-end and 29 February cases, and got the same day every time.