You want to change H-1B employers. Here is how portability works.

The American Competitiveness in the Twenty-First Century Act (AC21) established H-1B portability, one of the most important protections for H-1B workers. It allows you to begin employment with a new employer without waiting for USCIS to approve the new petition.

Overview

Under AC21 § 105(a), an H-1B worker can begin working for a new employer as soon as the new employer files an H-1B transfer petition with USCIS, provided the worker is in lawful H-1B nonimmigrant status at the time of filing and the new petition is not frivolous. This is commonly called “H-1B portability” or an “H-1B transfer.”

An H-1B transfer is technically a new H-1B petition filed by the new employer — it is not a simple administrative transfer of an existing petition. The new employer must file a new Labor Condition Application, a new Form I-129, and all supporting documentation establishing that the position qualifies as a specialty occupation and that the beneficiary is qualified.

Importantly, an H-1B transfer is not subject to the annual H-1B cap. Since the worker has already been counted against the cap, changing employers does not require going through the lottery again. This is true regardless of whether the original H-1B was cap-subject.

California workers should be aware that AB 692, effective January 1, 2026, prohibits employers from requiring workers to repay training, relocation, or employment-related costs upon separation. This means your current employer cannot impose financial penalties for leaving, which strengthens the practical ability to exercise H-1B portability.

What to do when transferring your H-1B to a new employer

Your Rights Under California Law

H-1B workers have strong protections when changing employers.

Right to portability

Under AC21, you can begin working for a new employer as soon as the transfer petition is filed. Your current employer cannot prevent you from exercising this right. Non-compete agreements are generally unenforceable in California under Business and Professions Code § 16600.

Right to freedom from repayment clauses

Under California AB 692, effective January 2026, employers cannot require you to repay training, relocation, or employment-related costs if you leave. This includes H-1B filing fees, which employers are already prohibited from passing to workers under federal law.

Right to a 60-day grace period

If your employment ends before the transfer petition is filed, you have a 60-day grace period (or until the end of your authorized validity period, whichever is shorter) to find a new employer and file a transfer petition. During this grace period, you are not authorized to work, but you remain in lawful status for purposes of filing a new petition.

How California Law Applies

H-1B portability under AC21 requires three conditions: the worker must be in lawful H-1B nonimmigrant status at the time the new petition is filed; the new employer must file a non-frivolous petition on the worker’s behalf; and the worker must not have been employed without authorization prior to the filing.

The “non-frivolous” standard means the petition has a legitimate basis — the position must actually exist, the employer must be a legitimate business, and the petition must be filed with proper documentation. A petition filed solely to maintain the worker’s status without a genuine job offer would not qualify.

USCIS evaluates transfer petitions using the same standards as initial H-1B petitions. The new employer must establish that the position is a specialty occupation, the worker is qualified, and the employer can pay the prevailing wage. Transfer petitions are sometimes scrutinized for consistency with the worker’s prior H-1B approvals.

The Legal Process

The H-1B transfer process follows the same filing procedures as a new H-1B petition. The new employer files Form I-129 with USCIS, along with the certified LCA, supporting documentation, and all required fees. Upon receipt, USCIS issues a receipt notice (Form I-797C) confirming the filing.

Under portability, the worker can begin employment with the new employer upon the filing of the petition. In practice, most workers wait for the receipt notice before starting, as this provides documented proof that the petition was properly filed.

Standard processing for H-1B transfers ranges from three to six months. Premium processing guarantees an initial response within 15 business days. If the petition is denied while the worker is employed under portability, the worker must cease employment for the new employer and may need to return to the prior employer or take other steps to maintain status.

What Documentation Matters

Key documents for an H-1B transfer petition include:

• Certified LCA for the new position — Must reflect the new employer, worksite, SOC code, and prevailing wage.
• Detailed job description — Establishes the position as a specialty occupation with the new employer.
• Prior H-1B approval notice (I-797) — Demonstrates the worker’s current H-1B status and prior cap-subject petition.
• Recent pay stubs from current employer — Evidence of maintained H-1B status and employment.
• New employer offer letter — Specifies the position, salary, start date, and job duties.
• Employer financial documentation — Tax returns, financial statements, or annual reports proving ability to pay the prevailing wage.
• Beneficiary’s credentials — Educational credentials, resume, and any prior credential evaluations.

Frequently Asked Questions