Pirate stories of buried treasure in remote places have captured the imagination for centuries. Americans who have worked in Spain and Spaniards who have worked in the United States might not be digging holes on tropical islands, but they could also be sitting on a treasure that has gone unnoticed.
That treasure is the retirement pensions to which we might be entitled in the United States or in Spain. We might think that we haven’t contributed to Social Security for enough years to qualify for a pension in the United States (generally 40 credits, equivalent to about 10 years of work). Or we know that we haven’t worked long enough in Spain to access a pension (normally at least 15 years of contributions). Fortunately, this does not mean that the contributions we have accumulated are left “abandoned” on a deserted island. Thanks to a treaty between the United States and Spain known as the Social Security Totalization Agreement, we can combine contribution periods from both countries to meet the minimum eligibility requirements.
Best of all, the Totalization Agreement works in both directions. We can use contributions made in Spain to qualify for Social Security benefits in the United States, or use contributions made in the United States to access benefits in Spain. When a professional career spans both countries, it is easy to fall short of the minimum requirements in each. The agreement resolves this issue by allowing work periods to be added together so those years are not lost. In a way, it is a modern-day treasure map.
Both Spain and the United States review the combined contribution record to determine whether we meet eligibility criteria. However, just as pirates divided their loot according to a strict code, Social Security benefits are also distributed under very precise rules. Each country pays its portion separately:
United States Benefits: The United States can take into account contribution periods in Spain to help us meet minimum eligibility requirements. If we gain entitlement through this mechanism, the benefit will be proportional and calculated solely on the basis of our work history in the United States.
Spain Benefits: Spain can credit contributions made in the United States to help us meet the minimum required period and will subsequently pay a proportional pension based exclusively on contributions made in Spain.
This does not mean that both systems merge into a single benefit. Each country pays exclusively its own corresponding share. Contributions are combined solely to establish eligibility, not to increase the payout amount. Contribution periods are not transferred from one country to another; they remain within the system where they were generated and are simply recognized by the other state.
In other words, while contributions can be aggregated to satisfy eligibility thresholds, the actual amount of each benefit will depend solely on the years worked in each respective country. For example, if we have worked 6 years in the United States and 11 years in Spain:
The U.S. benefit will be calculated solely on those 6 years of U.S. contributions.
The Spanish pension will be based exclusively on the 11 years of contributions made in Spain.
Each country will pay its proportionate share: we will not receive an extraordinary windfall, but neither will we lose the contributions we worked so hard to accumulate. The key lies in ensuring we meet the minimum thresholds—at least 6 U.S. credits (roughly one and a half years of work) and at least one year of contributions in Spain—to be eligible for the treaty’s provisions when the time comes.
We may never find a pirate chest filled with gold doubloons, but if we have worked in both Spain and the United States, we may uncover a treasure that is just as valuable. Thanks to the Totalization Agreement, our “hidden treasure” is not buried under the sand: it has been built over years of hard work and, with the right map, is completely within our reach.



