Someone who works in several countries accumulates pension entitlements in each. Combining them into a single retirement income is considerably harder than combining bank balances.
State and workplace pensions behave differently
State pensions are usually based on contribution records held by a national authority. The entitlement stays where it was earned and is paid from there at retirement.
Workplace and personal pensions are pots of assets or promises held by a scheme. These are the arrangements where transfer between countries is sometimes possible.
Confusing the two leads to unrealistic expectations. A state record cannot be moved, only counted.
How coordination agreements work
Many countries have social security agreements that let periods worked abroad count toward qualifying for a domestic state pension. Each country then pays a share proportional to the period completed there.
This solves the problem of falling short of a minimum contribution period in every country while having worked a full career overall. Without such an agreement, short periods can be lost entirely.
Coverage is bilateral or regional rather than universal, so the outcome depends entirely on which countries are involved. Agreements are periodically renegotiated.
Why transferring a private pot is restricted
Pension savings usually receive tax relief on the way in, on the condition that benefits are eventually taxed. Allowing a transfer abroad risks losing the second half of that bargain.
Countries therefore restrict transfers to receiving schemes that meet defined conditions, and may impose charges where they do not. The rules are detailed and change frequently.
Some systems permit no outward transfer at all. The pot remains and is paid from the original country at retirement.
Where the money is taxed
A pension may be taxable in the country that paid it, the country of residence, or both. Double taxation treaties allocate the right between them.
Treaties often treat state and private pensions differently, and some reserve taxing rights to the source country. The outcome depends on the specific treaty rather than on a general principle.
Claiming relief usually requires documentation filed before payment begins. Recovering tax already withheld is slower and sometimes not possible.
The practical problems that persist
Small entitlements left in several countries are easily lost track of, particularly after schemes merge or providers change name. Tracing services exist but coverage is uneven.
Payment of a modest pension into a foreign bank account can also cost a meaningful share of it in transfer fees. Some schemes will only pay domestically.
Rules on entitlement, transfer and taxation vary by jurisdiction and are revised regularly, so records held at the time of leaving a country remain the most useful asset.