SESKStuff Everyone Should Know
SESK: Stuff Everyone Should Know · sesk.info/wt-dual-use-us-passport

A US citizen who also holds another country's passport returns home. Which passport must they use?

Their US passport, to enter and leave the US.

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  1. Either one
  2. Their US passport ✔
  3. Whichever was issued most recently

Why: US dual citizens owe allegiance to both countries, but they must use a US passport to enter and leave the United States. The other country may have its own rule for its border.

Huh, didn't know that: A US citizen can naturalize in another country without risking US citizenship.

The dad joke
My grandpa says he holds dual citizenship: the couch and the recliner.
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References

Answer: Their US passport. US dual citizens owe allegiance to both countries, but they must use a US passport to enter and leave the United States. The other country may have its own rule for its border.

  1. How to get dual citizenship or nationality (USAGov) www.usa.gov/dual-citizenship
    Must use a U.S. passport to enter and leave the U.S.
    Checked 2026-10-12.
  2. How to get dual citizenship or nationality (USAGov) www.usa.gov/dual-citizenship
    As a U.S. citizen, you may naturalize in another country without risking your U.S. citizenship.
    Checked 2026-10-12.

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