You can count US social security contributions towards the requirements in other countries (and vice versa) if they're covered by one of the treaties: https://w

You can count US social security contributions towards the requirements in other countries (and vice versa) if they're covered by one of the treaties: https://www.ssa.gov/international/agreements_overview.html https://www.ssa.gov/international/agreements_overview.html . It's a short list of countries, though, and doesn't cover the top H-1B senders