How long have you lived in the United States?

When the USCIS officer asks how long the applicant has lived in the United States, the applicant should respond with the total length of residence in the country, typically given as years and months, and dating from the original arrival as a temporary visitor or as the permanent resident green card date depending on context. The officer is checking that the applicant meets the continuous residence and physical presence requirements for naturalization.

United States immigration law requires most applicants to have been lawful permanent residents (green card holders) for at least 5 years before applying for citizenship, and to have been physically present in the United States for at least 30 of those 60 months. Applicants who are married to U.S. citizens may apply after 3 years of permanent residence (the so-called 3-year rule), with at least 18 of those 36 months spent physically in the United States. The applicant must also have lived in the state where he or she is applying for at least 3 months.

Continuous residence means the applicant has not abandoned his or her residence in the United States. Trips of 6 months or more outside the country are presumed to break continuity unless the applicant can rebut the presumption with documentation showing that the applicant maintained a U.S. home, employment, family ties, and tax filings during the absence. Trips of more than one year break continuous residence and reset the clock. The applicant should be prepared to discuss any trips abroad, especially long ones, and to bring travel records (passport stamps, airline records, etc.) showing entries and exits.

The officer typically pulls up the applicant's full immigration record, including the I-94 entry records and any reentry documents. Most applicants give the answer in two parts: the year they first arrived in the United States and the year they became a permanent resident, with explanations for any time abroad. For example, "I first came to the United States as a student in 2010, and I became a permanent resident in 2015," followed by "so I have been a permanent resident for [N] years."

Applicants over a certain age qualify for testing accommodations based on length of residence: the 50/20 and 55/15 rules allow non-English testing, and the 65/20 rule provides a simpler civics test. Applicants whose spouse died while serving in the military, or who are themselves serving in the U.S. military, may have shortened residence requirements. Bringing the green card and passport (with all stamps and any reentry documents) helps the officer verify dates.