H-1B Transfer and Extension Rules in FY 2027: AC21, the 6-Year Limit, and What a PERM Denial Can Change

An H-1B transfer usually lets a worker start the new job once USCIS receives the new employer’s petition. The worker does not need to wait for approval. That rule comes from AC21 portability.

That early work start applies only if the transfer filing is proper. The worker must have been lawfully admitted, must not have worked without authorization, and must be in a period of authorized stay when the petition is filed.

For workers near the 6-year H-1B limit, the transfer question often overlaps with an extension question. That is where AC21, a pending or approved PERM, and any PERM denial become central.

💼 Employee Tip: If you plan to change employers close to your max-out date, check your exact I-94 expiration and prior H-1B time used before any transfer filing.

Who qualifies for an H-1B transfer

A transfer is not a separate visa class. It is a new Form I-129 filed by the new employer.

The new employer must still show a valid specialty occupation, a proper LCA, and the required wage. The wage must meet the higher of the actual wage or prevailing wage.

Here is the basic transfer standard:

Employers should review the role’s SOC code and wage level carefully. Level I wages still receive extra scrutiny in many specialty occupation cases.

If the transfer includes an extension of stay, USCIS reviews both the new job and the worker’s remaining H-1B time.

Transfer portability and timing expectations

In many cases, the worker may begin with the new employer upon USCIS receipt of the petition. A receipt notice is the practical marker employers use.

Premium processing can shorten the wait on the decision itself.

⚠️ Employer Alert: Portability does not erase filing mistakes. If the petition is weak, the worker may start quickly but still face a later denial.

H-1B extensions, the 6-year limit, and AC21

A standard H-1B stay is limited to 6 years, with some recapture exceptions for time spent abroad. AC21 allows extensions beyond 6 years in two main ways.

This is where the phrase H-1B 7th-year extension usually appears. It often means a 1-year extension beyond the 6-year limit under AC21 § 106(a).

USCIS stated in a December 23, 2025 FAQ that once 365 days have passed since PERM filing, the worker may qualify for 1-year H-1B extensions until there is a final decision.

A February 27, 2026 DHS policy alert stressed another point. Eligibility must exist at the time of filing. A final, non-appealable DOL denial ends eligibility for more extensions under § 106(a).

How a PERM denial affects a pending or approved 7th-year extension

A PERM denial does not affect every case the same way. Timing matters.

If the H-1B extension is already approved

If USCIS already approved the H-1B 7th-year extension, a later PERM denial does not automatically revoke that approval.

The worker generally keeps the approved extension through its validity period. The bigger problem is the next extension. Future 1-year AC21 extensions may not be available unless:

• a new PERM is filed on time,
• a qualifying I-140 is filed,
• or another AC21 path applies.

If the H-1B extension is still pending

If the extension is still pending when the PERM is denied, USCIS may deny the H-1B filing. The qualifying basis may no longer exist.

There is one major exception. A denied PERM may remain “alive” for H-1B purposes if a timely motion or BALCA appeal is filed within 30 days.

That timing can preserve eligibility under AC21 § 106(a) while the challenge remains pending.

⏰ Deadline: If PERM is denied, review appeal or reconsideration options immediately. Missing the 30-day filing window can end the “alive” period.

Backdating, status gaps, and the 240-day rule

Employers and employees often ask whether a denied case creates “backdating.” The better question is whether the worker stayed in valid status while the extension was pending.

If USCIS approves an extension of stay, the approval generally relates back to the prior I-94 expiration. That creates a continuous record of authorized stay.

If USCIS denies the extension after the I-94 expires, the worker can become out of status from the denial date. Work authorization ends immediately on denial.

A timely filed extension can allow work for up to 240 days beyond I-94 expiration while the case is pending. That 240-day period ends once USCIS denies the petition.

What happens if an H-1B transfer is denied

If the transfer is denied, the result depends on the worker’s prior status.

If the worker still has valid H-1B approval and I-94 time with the prior employer, returning to that employer may be possible. If the prior employment already ended, that option may not exist.

If the worker relied only on the pending transfer and the case is denied after the prior status ended, the worker may need to stop working at once and leave the United States, or file another proper request if eligible.

This gets more serious near the 6-year limit. A denied transfer can also disrupt a pending green card timeline.

Pending green card cases, PERM denial, and other options

A pending or approved green card case can affect both transfer strategy and extension strategy.

As of March 2026, DOL PERM processing averages about 503 to 512 days. Audits push many cases much longer. That is why employers should start PERM planning early.

If there is a PERM denial and the max-out date is close, common options include:

• BALCA appeal or reconsideration, filed within 30 days.
• A new PERM in a different role or with a different employer.
• EB-2 NIW, which avoids PERM and may support a 3-year AC21 extension after I-140 approval.
• A change to H-4, F-1, or O-1 if eligible.

A new PERM must be filed at least 365 days before the H-1B max-out to support a later 1-year extension under AC21.

Workers with approved I-140 petitions should also review whether they qualify for 3-year extensions under AC21 § 104(c) instead of relying on a PERM-based 1-year extension.

The $100,000 fee that took effect in September 2025 does not usually affect in-country H-1B renewals or extensions. It applies to certain new petitions for beneficiaries outside the United States.

FY 2027 timing points employers should track

Although cap filing dates matter less for transfers, FY 2027 remains the current filing cycle for many employers.

Transfers and most extensions remain available year-round if the worker is already cap-counted.

Employers should review max-out dates at least 12 to 18 months ahead. Employees should keep copies of every I-797, I-94, pay statement, and prior LCA.

Employers should begin PERM planning early enough to meet the 365-day AC21 rule, confirm the offered wage matches the correct SOC code and area, and file any transfer before status expires. Employees should verify the exact max-out date, ask whether the PERM or I-140 supports a 1-year or 3-year extension, and review whether a BALCA appeal is needed within 30 days after any PERM denial. For current filing rules and policy updates, check the official USCIS H-1B pages and DOL processing time resources.

📋 Official Resources: – H-1B Program: uscis.gov/h-1b-specialty-occupations – Cap Season: uscis.gov/h-1b-cap-season – Prevailing Wages: flcdatacenter.com