How do EU pension rights work across several countries?

EU coordination rules (mainly Regulation 883/2004) ensure that working in several EU/EEA countries plus Switzerland doesn't destroy your pension entitlements. The mechanism is straightforward in concept: each country keeps its own pension system, but the contribution years from all member states are added together to determine whether you have reached the minimum needed to qualify for a pension in any of them.

Once you are eligible, each country calculates and pays its own partial pension based only on the years you contributed there. So if you spend 10 years in Germany and 25 years in another EU country, both will eventually pay you a partial pension at the relevant retirement age. You usually apply through the pension authority in the country where you live at retirement, and that authority forwards the request on to the others. The system is paper-heavy and notoriously slow, but it does work.

Outside the EU/EEA/Switzerland, Germany has bilateral social-security agreements with a number of countries — including the UK (which is no longer an EEA member but still has its own agreement with Germany), the United States, Canada, Japan, India, South Korea and others. These agreements work along similar coordination principles, but the exact rules — minimum contribution years, transfer of credits, taxation of payouts — differ country by country.

If you've worked in three or more countries with relevant contributions, it is genuinely worth getting individual advice well before retirement. The application process can take months even in straightforward cases, and the choices you make about where to retire can change the maths meaningfully.