Observed arrival · 2026-10-19
Citizenship Date’s N-400 filing-date calculator
A free calculator estimates when a permanent resident can file Form N-400 using their green-card date and U.S. travel history.
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- For
- Permanent residents preparing an N-400 application
- Worth noticing
- It counts departure and return dates as days in the United States, and says trips under 24 hours need not be listed.
Field notes
Users choose the standard five-year or marriage-based three-year path, enter a green-card date, and list trips individually or paste rows; planned trips can also be added. The page describes checks for residence duration, physical presence (913 or 548 days), and continuous residence, with separate treatment for some absences lasting more than six months. Results can be downloaded as CSV or printed, while entered dates are described as staying on the device.
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One card from the complete issue