If you’re a U.S. citizen or resident who has worked in Belgium, or vice versa, you may be familiar with the term “totalization agreement.” But for those who aren’t, here’s a brief overview of what it means and how it could affect you.

Totalization agreements, also known as social security agreements, are treaties between two countries that aim to eliminate dual social security taxation and help ensure that workers receive benefits they’ve earned in both countries. The agreements typically apply to individuals who have worked or are currently working in both countries, but who may not have met the minimum requirements for social security benefits in either country on their own.

The U.S.-Belgium totalization agreement was first signed in 1984 and went into effect in 1987. It applies to U.S. citizens and residents who have worked or are currently working in Belgium, as well as Belgian citizens and residents who have worked or are currently working in the U.S. Under the agreement, these individuals are generally subject to social security taxes in only one country, depending on certain criteria such as the length of their assignment or the nature of their employment.

The agreement also allows individuals to combine their work credits from both countries to qualify for social security benefits in one or both countries. For example, a U.S. citizen who worked in Belgium for a few years and then returned to the U.S. could potentially qualify for Belgian social security benefits if they don’t meet the minimum requirements for U.S. benefits, or vice versa.

It’s important to note that totalization agreements can be complex, and the specific rules and eligibility criteria can vary depending on the country and the situation. If you’re a U.S. citizen or resident who has worked in Belgium, or vice versa, and you have questions about how the totalization agreement may affect you, it’s best to consult with a qualified tax professional or social security specialist who is familiar with the agreement and its nuances.

In summary, the U.S.-Belgium totalization agreement is an important treaty that helps ensure that individuals who have worked in both countries receive the social security benefits they’ve earned. If you think you may be eligible for benefits under the agreement, seek guidance from a knowledgeable professional to help navigate the sometimes-complex rules and requirements.