Retirement

Who pays for retirement

Most national pension systems are pay-as-you-go: the people working today fund the people who have stopped. That makes the arithmetic of a pension system fairly simple to see — how many retirees there are per worker, and how long retirement lasts. These are the numbers behind every argument about raising the retirement age.

Old-age dependency ratio

How many people of retirement age there are for every 100 people of working age. This single number drives more pension policy than any other: a pay-as-you-go system in which today's workers fund today's pensioners gets structurally harder to finance every time this ratio rises, which is why countries with the highest values here are the ones debating later retirement ages.

Measured in people aged 65+ per 100 working-age people. Source: World Bank Open Data (indicator code SP.POP.DPND.OL, CC BY 4.0). Latest year available: 2025. How this is sourced

Countries with data
217
latest year per country
Highest
71.7
Monaco
Median country
12.7
half are above, half below
Lowest
2.0
Qatar
Country detail
Select a country on the map — or any row below — to see how this measure has changed over time.
Highest
Highest ten countries by Old-age dependency ratio
CountryValueYear
Monaco71.72025
Japan51.02025
Portugal40.02025
Puerto Rico (US)39.82025
Italy39.72025
Finland39.42025
Greece38.92025
Virgin Islands (U.S.)38.32025
Germany38.02025
Isle of Man37.82025
Lowest
Lowest ten countries by Old-age dependency ratio
CountryValueYear
Qatar2.02025
United Arab Emirates2.22025
Zambia3.52025
Oman3.72025
Kuwait4.02025
Uganda4.12025
Chad4.12025
Saudi Arabia4.22025
Afghanistan4.42025
Central African Republic4.52025

Snapshot refreshed 17 Oct 2026, 20:27 UTC. Country histories are fetched live when you select a country.

What about the statutory retirement age itself?

It is a fair question, and the honest answer is that it does not exist as a live public API the way the figures above do. The authoritative source is the OECD's Pensions at a Glance, which publishes current and future pensionable ages as a report table every two years.

Rather than copy those numbers into this page, where they would quietly go out of date the next time a country legislates a change — and several do every year — this site links you to the source itself. It is the same principle applied everywhere here: if a number cannot be fetched and dated automatically, it does not get presented as though it were live.

OECD Pensions at a Glance → (Organisation for Economic Co-operation and Development, OECD terms of use (attribution required)). Covers OECD and G20 countries. More on how this site handles sourcing

Reading these together. A high old-age dependency ratio and a high life expectancy are what put a pension system under strain, but neither is bad news in itself — long lives are the achievement that created the problem. Countries respond differently: some raise the retirement age, some raise contributions, some reduce what pensions pay, and many do a little of each.