Your AOW Age: What Is Fixed and What Is Still a Guess

Ask ten people in the Netherlands when they get their AOW and most will say sixty-seven. Ask when exactly, and it gets quiet. The Dutch state pension does not start on a birthday everyone shares: it starts on a date that depends on when you were born, and for a large group of working people that date is not even final yet.

That second part is where planning goes wrong. A pension projection, a mortgage that runs until retirement, a decision to stop working two years early: all of them lean on a date that many tools present as a certainty while the law only fixed it for part of the population.

Why the AOW Age Is Different per Birth Date

Until 2013 the AOW started at sixty-five for everyone. Since then it has risen in steps, and since 2022 it moves with average life expectancy: as the expectation rises, the AOW age follows. The steps are deliberately small, so people born a few months apart can have different AOW ages.

That is why a table by birth date, not by year, is the only correct way to look this up. Someone born in February 1957 has an AOW age of 66 years and 10 months. Someone born in March 1957 reaches it at 67. Same year, two months apart, a different pension date.

Fixed Versus Expected: the Distinction That Matters

The Sociale Verzekeringsbank makes a distinction that most calculators quietly drop.

Fixed by law: everyone born before 1 October 1964 has an AOW age that is set and will not change. If you are in this group, you can plan on the date with confidence.

Expected: everyone born on or after 1 October 1964 has an AOW age that is a projection. It is derived from life expectancy figures and is confirmed roughly five years in advance. It can still move.

The practical consequence: if you were born in 1975, the widely quoted "68 years" is a reasonable planning assumption, not a promise. Building a bridging plan that must work to the month on that date is building on an estimate. The AOW Age Calculator labels every result as fixed or expected for exactly this reason.

The Date, Not Just the Year

Your AOW starts on the day you reach the AOW age, not in January of that year. For an age like 67 years and 3 months, the calculation adds those months to your birth date.

There is a subtlety worth knowing if you are checking someone else's work: month arithmetic at the end of a month. Take a birth date of 31 January with an AOW age of 67 years and 3 months. Adding three months naively gives 31 April, a date that does not exist, and sloppy code silently rolls that over to 1 May. The correct answer is 30 April. A month of state pension hangs on that detail, which is why the calculator clamps to the last valid day of the target month.

Decisions That Hang on Your AOW Date

Once you know the date, several things anchor to it:

• Stopping work earlier. The AOW does not start sooner because you retire sooner. The gap has to come from savings or an early retirement option in your workplace pension. Knowing the exact date tells you how many months you need to bridge.
• Your employment contract. Many Dutch contracts and collective agreements end automatically at the AOW date. That makes the exact day relevant for notice periods and final settlements, including any severance calculation.
• Mortgage terms. Lenders look at income after retirement. A mortgage capacity estimate that ignores when your salary stops and your pension starts is optimistic by definition.
• Working beyond it. Nothing stops you from working after your AOW age, and the AOW starts regardless. Your net salary changes though: AOW recipients pay lower social security contributions.

One more thing the AOW is not: your whole pension. It is a basic state provision. Most people also build a workplace pension with its own retirement age, which does not have to match the AOW date at all.

Check the Official Record

A calculator tells you what the table says for your birth date. It cannot tell you what you personally built up. The AOW is accrued at two percent per year for each year you lived or worked in the Netherlands between the ages of roughly fifteen and your AOW age. Years spent abroad reduce the amount, often without people realising it until they receive the projection.

So use the calculator for the date, and check your personal accrual with the SVB, which holds the authoritative record. The two together give you the full picture: when it starts, and how much of the full amount you are entitled to.