Overview
- Eligible B-1/B-2 visitors who entered legally can seek an extension using Form I-539 submitted online or by mail.
- USCIS urges filing before the I-94 expiration—about 45 days ahead—so lawful status continues during review.
- Applications should include a copy of the I-94, a valid passport, a written explanation with proof of funds, and evidence of no unauthorized work, with I-539A for minor dependents.
- Reported fees are $420 for online filings or $470 on paper, according to the guidance cited in the coverage.
- CBP sets the original stay (often up to 180 days), extensions are discretionary case by case; certain categories (C, D, K-1/K-2, S, TWOV, WT, WB) and those who violated terms are ineligible, and denials require prompt departure that can affect future travel.