Last updated June 1, 2026
Can You Switch Employers on H-1B? Rules & Timeline
Most H-1B workers can change employers under H-1B portability (AC21). You may begin working for the new employer as soon as USCIS receives the new H-1B petition. You do not need to wait for approval, provided you were in valid H-1B status and the new employer filed properly.
What is H-1B portability?
H-1B portability (sometimes called AC21 portability) allows an H-1B worker who is already in the United States in valid H-1B status to begin working for a new H-1B employer once that employer files a new H-1B petition with USCIS. You do not need to wait for the petition to be approved before starting work, as long as you meet the eligibility requirements.
What are the requirements?
You must have been lawfully admitted to the U.S. in H-1B status, the new employer must file a non-frivolous H-1B petition before your authorized stay expires, and you must not have worked without authorization since your last lawful admission. If your I-94 has expired, additional rules apply. Consult a licensed attorney.
What risks should I know about?
If the new petition is denied and you have already left your prior employer, you may fall out of status. Maintain documentation of the filing receipt, keep copies of pay stubs from both employers during any overlap, and consider premium processing for time-sensitive moves.
Amberbird.AI provides general information, not legal advice. We are not a law firm. For advice on your specific case, consult a licensed immigration attorney.