Changing Employers on a Work Visa (H-1B Portability)

If you're on H-1B status and want to change jobs, you generally do not have to wait for a new petition to be approved before you start working for your new employer. Under a rule commonly called "H-1B portability," you may begin the new job as soon as your new employer properly files a non-frivolous H-1B petition (Form I-129) with U.S. Citizenship and Immigration Services (USCIS) on your behalf — or on your requested start date, whichever is later. This overview explains how portability works, what can go wrong, and how a related rule can protect a pending green card case when you switch jobs.

What H-1B portability actually is

Portability comes from Section 105 of the American Competitiveness in the Twenty-First Century Act of 2000 (AC21), codified at INA § 214(n). It lets an H-1B worker move to a new H-1B employer, or take on a second, "concurrent" H-1B job, without having to leave the country or stop working while the new petition is pending. USCIS explains the current rules in its Policy Manual (Volume 2, Part H, and Volume 7, Part E), and that is the authoritative place to check for the latest guidance before you rely on any of this.

When you're allowed to start the new job

Portability applies — meaning you can start the new job on filing rather than waiting for approval — only if all of the following are true:

• You were lawfully admitted to the United States.
• You currently hold H-1B status (you were previously issued an H-1B visa or granted H-1B classification).
• The new employer files a non-frivolous Form I-129 H-1B petition on your behalf before your current authorized stay (as shown on your Form I-94) expires.
• You have not worked without authorization at any time since your last lawful admission.
• The new petition is accompanied by a valid, unexpired, DOL-certified Labor Condition Application (LCA) that covers the work you'll actually be doing.

A "non-frivolous" petition simply means one that has a reasonable basis in law and fact — it doesn't need to be guaranteed approval, but it can't be filed in bad faith or with no real chance of success. If any of the requirements above are not met — for example, if your I-94 has already expired, or you had a gap of unauthorized work — portability may not protect you, and you should get legal advice before starting a new job.

The transfer process: what to do

1. Line up the new job offer before your status runs out. Your new employer needs enough lead time to prepare the filing before your I-94 expiration date.
2. New employer obtains a certified Labor Condition Application (LCA) from the Department of Labor covering the job duties, work location, and wage.
3. New employer files Form I-129 (Petition for a Nonimmigrant Worker) requesting H-1B classification, along with the certified LCA and supporting evidence of your qualifications and the job.
4. You may start work once the petition is properly filed (received by USCIS) and any requested start date has arrived — you do not need to wait for the approval notice.
5. Consider premium processing (Form I-907) if faster adjudication matters to you or your employer; check current fees and processing times on uscis.gov, since both change.
6. Keep proof with you — a copy of the receipt notice (Form I-797C) showing the petition was filed, your prior H-1B approval notices, recent pay stubs, and your I-94 record — in case your status or work authorization is questioned.
7. Don't resign from your current employer until you're confident about the transfer, and don't start the new job before the requested start date listed on the new petition.

Where the risk comes in

Portability is a real protection, but it is not a guarantee. Be aware of these risks:

• Denial after you've already started. If USCIS ultimately denies the new petition, your permission to work for the new employer ends. Depending on the circumstances, this can create serious status problems, including possible accrual of unlawful presence. Talk to an immigration attorney immediately if a denial or a Request for Evidence arrives after you've begun work.
• Multiple pending petitions. It's possible to change employers more than once while an earlier transfer petition is still pending, but this is legally intricate and mistakes compound quickly — this is a situation where an attorney's review is especially valuable.
• Travel during the pending period. Leaving and re-entering the U.S. while a portability petition is pending carries added risk and complexity. Check travel.state.gov and uscis.gov, and talk to an attorney, before booking international travel.
• Job duties and location must match the LCA and petition. If your actual role, worksite, or wage differs materially from what was filed, the new employer may need to file an amended petition. USCIS has updated its guidance on when a change in work location requires an amended filing, so the new employer's immigration counsel should confirm this before you relocate.
• The old employer's obligations end when you leave, but you should keep records showing when your employment there actually ended, since that can matter later.

How portability can protect a pending green card

H-1B portability (changing jobs while staying in H-1B status) is a different rule from the portability that can protect an employment-based green card case already in progress — but the two often come up together when someone changes jobs mid-process.

• Porting the underlying green card petition (INA § 204(j)). If your employer has an approved Form I-140 immigrant petition on your behalf and your Form I-485 adjustment of status application has been pending 180 days or more, you may be able to move ("port") the green card case to a new job offer — with the same or a different employer — in the same or a similar occupational classification, while keeping your original priority date. This requires filing Form I-485 Supplement J to document the new, bona fide job offer. USCIS's Policy Manual (Volume 7, Part E) sets out how it evaluates whether a new job is "same or similar."
• Extending H-1B status beyond the normal limit. H-1B status is generally capped, but AC21 allows extensions beyond that cap in certain green-card-in-process situations — for example, in one-year increments if a labor certification or I-140 petition has been pending 365 days or more, or in longer increments if you have an approved I-140 but cannot yet file for a green card because of per-country visa number backlogs (tracked monthly in the Department of State's Visa Bulletin). Eligibility rules for these extensions are technical and change with individual circumstances, so confirm current requirements with USCIS or an attorney.

In short: H-1B portability keeps you working legally while a new H-1B petition is filed; I-140/204(j) portability can keep an already-pending green card case alive — and your original priority date intact — when you change to a similar job. Both can apply at the same time to the same job change. If you are on the H-1B-to-green-card path, ask your new employer's immigration counsel to evaluate both before you make a move.

The deadline that matters most

Your Form I-94 "admit until" date is the hard deadline. For H-1B portability to apply, the new employer's non-frivolous petition must be filed before that date. If your I-94 has already expired, portability generally will not help you, and you should speak with an immigration attorney right away about your options, since continuing to work without valid status can have serious immigration consequences.

Rules change — verify before you rely on this

Immigration regulations affecting the H-1B program, including definitions, filing requirements, and processing procedures, are updated from time to time. Before you or your employer act, confirm the current rules directly with USCIS (uscis.gov), the current Labor Condition Application requirements with the Department of Labor (dol.gov), and any visa or travel questions with the State Department (travel.state.gov). Current filing fees, form editions, and processing times should always be checked on uscis.gov rather than assumed from an older source.

Frequently asked questions

• Do I have to wait for approval before starting the new job? No — you may start once the new employer properly files a non-frivolous petition, or your requested start date, whichever is later.
• What if the new petition is denied after I've started? Your work authorization for that employer ends; contact an immigration attorney immediately.
• Can I change employers again while an earlier transfer petition is still pending? Often yes, but it's legally complex — get guidance before filing again.
• Does a job change restart my green card process? Not necessarily, if your I-485 has been pending 180+ days and the new job is in the same or a similar occupation (Form I-485 Supplement J).
• Can I travel while my transfer petition is pending? It carries added risk — check current guidance and talk to an attorney before booking travel.

Beware of "notario" and unauthorized practice of immigration law. Only a licensed attorney or a representative accredited by the Department of Justice may legally give you immigration legal advice or represent you before USCIS. Do not pay a "notario público," consultant, or unaccredited preparer for legal advice about your case — verify credentials, and if you need help finding a qualified attorney or accredited representative, use official resources referenced by USCIS or EOIR (justice.gov/eoir), not a paid advertisement.

This article provides general information, not legal advice, and does not create an attorney-client relationship. Because H-1B and green card portability decisions can affect your ability to remain in and work in the United States, consider consulting a qualified immigration attorney or a DOJ-accredited representative before changing employers.