H-1B Transfer: How to Switch Employers Without Losing Status

What is H-1B Portability?

H-1B portability (created by the AC21 Act) allows H-1B workers to change employers without losing their H-1B status, as long as certain conditions are met.

The basic rule: You can start working for a new H-1B employer as soon as they file an H-1B transfer petition — you do not have to wait for USCIS to approve it.

This is a major protection that gives H-1B workers significantly more flexibility than is commonly understood.

Two Types of H-1B Transfers

Type 1: Standard H-1B Transfer (No I-485 Pending)

If you do not have a pending I-485 adjustment of status application:

• New employer files H-1B petition for you
• You can start working immediately upon filing (not approval)
• Your H-1B status remains valid during adjudication
• If denied, you must stop working

Requirements:

• Valid H-1B status at time of filing
• New job in same occupational specialty as original H-1B
• New employer is H-1B eligible

Type 2: AC21 Portability (I-485 Pending 180+ Days)

If your I-485 has been pending for 180 or more days:

• You can change employers OR occupations (as long as the new job is "same or similar")
• Your green card process continues with the original priority date
• This is the most powerful immigration protection H-1B workers have

Requirements:

• I-485 pending for at least 180 days
• New job in same or similar occupational classification
• Underlying I-140 must remain approved

The 60-Day Grace Period

If your employment ends (layoff, resignation, or termination), you have a 60-day grace period to:

• Find a new H-1B employer and have them file a transfer
• Change to another visa status
• Prepare to depart the US

This grace period was established in 2017 and applies even if your I-94 shows a later authorized stay date.

What to Look for in Your Next H-1B Sponsor

When evaluating a new employer for H-1B transfer, check:

1. Their H-1B approval rate

Employers with low approval rates may have USCIS scrutiny that could delay or deny your transfer petition.

2. Their experience with transfers

Some employers are experienced H-1B sponsors; others file rarely and make mistakes. The number of filings in their history is a proxy for process experience.

3. Their PERM follow-through

If you plan to eventually pursue a green card, does this employer have a track record of sponsoring permanent residency?

4. Premium processing availability

For urgent transfers, premium processing (currently $2,805) guarantees a 15 business day decision. Know whether your new employer will pay this.

Evaluate any employer's H-1B track record on SignalVisa →

Common Mistakes to Avoid

Starting work too early: Even with portability, you need the new employer to actually FILE the petition before you start. Verbal commitments don't count.

Ignoring your I-94: Check that your current I-94 is valid. An expired I-94 means you're out of status, and portability may not protect you.

Overlooking occupational classification: AC21 portability requires "same or similar" occupation. A Software Engineer moving to a Product Manager role may face challenges — consult an attorney.

Not tracking your 180-day milestone: If you have a pending I-485, know exactly when it hits the 180-day mark. This is a critical threshold that changes your options significantly.

*This article is for informational purposes only. Consult a licensed immigration attorney for advice specific to your situation.*