Job Portability: Change Employers Without Starting Over
Two different moves get called "portability," and confusing them is expensive. One move is changing employers while you are in H-1B status. The other is changing jobs after your green card application has been filed. They come from different parts of the same 2000 law — the American Competitiveness in the Twenty-First Century Act, usually called AC21 — they run on different clocks, and each one protects something different. Get clear on which move you are making before you give notice.
Start with the H-1B move. There is no transfer, whatever the new employer calls it. Nothing is handed over from the old employer. The new employer files its own H-1B petition, on Form I-129, with its own certified Labor Condition Application, for its own job, at its own worksite and wage — and that petition has to meet every H-1B requirement on its own, including that the job is a specialty occupation and that you qualify for it. The old employer's consent is not required.
What portability adds is the start date. Under AC21 section 105, now section 214(n) of the Immigration and Nationality Act, an eligible H-1B worker may begin working for the new employer as soon as the new employer properly files a nonfrivolous petition — or on the start date the petition asks for, if that is later — instead of waiting months for an approval. Three conditions have to hold: you were lawfully admitted and were in H-1B status, the petition was filed before your authorized stay expired, and you have not worked without authorization since your last admission. In practice, the receipt notice for the filed petition is the document everyone works from.
Starting on the receipt is legal, but it is not risk-free. Portability is permission to work while USCIS decides; it is not an approval. If USCIS denies the new petition, the permission ends and you must stop working for the new employer at once. That is why many workers wait for the approval — often on premium processing — before resigning, and why you should ask the new employer, before you accept, whether it expects you to start on the receipt or on the approval. Do not resign on a filing nobody has checked.
Travel during a pending change of employer needs the same caution. Whether you can leave and come back in H-1B status depends on your visa, your prior approval, the receipt for the new petition, and how the officer at the port of entry treats the trip — and it is not applied the same way everywhere. Check before you book, not at the airport.
If the old job ends first, a different clock starts. A worker in H-1B status whose employment stops gets up to 60 consecutive days — or until the authorized stay on the I-94 ends, whichever comes first — to have a new employer file, to apply for a change of status, or to leave. The grace period protects your status; it does not authorize work. You may not work during it unless a new petition has been filed and portability lets you start. It is available once per authorized validity period, and the government retains discretion to shorten or eliminate it in a given case. A new employer that files inside the grace period can still put you to work on the filing, if the portability conditions are met.
Now the green card move — and its hard threshold. If no application for adjustment of status, Form I-485, has been filed at all, there is nothing to port. That is the position of many workers whose priority date is not yet current: they cannot use section 204(j), and changing employers usually means the new employer starts over with a new labor certification and a new I-140 petition. What they keep from the old case is their priority date, covered below — not the case itself.
Once an I-485 is on file, section 204(j) of the Act does the work. A petition in the EB-1, EB-2, or EB-3 categories remains valid for a new job if the I-485 has been filed and remained unadjudicated for 180 days or more, and the new job is in the same or a similar occupational classification as the job in the petition. Count the 180 days from the I-485 receipt date, in calendar days, and the application must still be pending when USCIS receives the portability request. The underlying I-140 must be approved, or must have been pending when USCIS was notified of the new job and be approved in the end — a petition that was not approvable when filed will not support a port. The new job must be a genuine, permanent offer. It can be with a different employer, a new job with the same employer, or self-employment, and it can be in a different place. No new labor certification and no new I-140 are needed for a qualifying move; the old labor certification remains valid for the new job under section 212(a)(5)(A)(iv) as well.
The request is made on Form I-485, Supplement J — the form has been required for portability requests since January 17, 2017, and there is no filing fee for it. You and the new employer complete and sign it, and it states the new job's title, occupational code, duties, and wage. File it when you make the move; USCIS will reject a portability Supplement J filed before the I-485 has been pending 180 days. Two limits matter. Supplement J does not by itself authorize you to work — that authorization has to come from somewhere else, such as H-1B portability or an employment authorization document. And self-petitioners whose cases do not rest on a job offer, such as EB-1A and national interest waiver cases, do not file Supplement J to change jobs, because there is no employer's offer to confirm or replace.
Same or similar is where these cases are decided, and USCIS does not decide it by one number. "Same" means an occupation that resembles the original in every relevant respect. "Similar" means one that shares essential qualities or has a marked resemblance or likeness to it. The officer looks at the totality of the circumstances, and you have to prove the move qualifies by a preponderance of the evidence — that it is more likely than not. The Standard Occupational Classification codes assigned to the two jobs are the usual starting point: the same detailed, six-digit code is favorable evidence, though not conclusive by itself; different detailed codes inside the same broad occupation are generally treated as similar unless the rest of the evidence points the other way; and jobs in different groupings can still qualify if the evidence shows they share essential qualities.
Beyond the codes, the officer compares the duties of the two jobs, the skills and experience each requires, the education and training each demands, any licenses or certifications, and the wages. Wages cut both ways and neither way is decisive: similar pay does not by itself prove the jobs are similar, and a pay difference does not by itself prove they are not. Job titles matter less than the actual work. A promotion can qualify: moving into a managerial job is treated favorably when you are primarily managing the same or similar functions you used to perform, or managing people whose jobs are in the same or a similar classification as your old one. Ordinary career progression is expected. A jump into a genuinely different field is not a progression, and calling it one does not make it one.
Priority date retention is a separate protection, and it is broader than many people are told. Once an I-140 is approved, its priority date is yours for any later EB-1, EB-2, or EB-3 petition filed for you — by a new employer, in a different one of those categories — and if you have several approved petitions, you keep the earliest date. That is the rule in 8 CFR 204.5(e). An employer's withdrawal of the petition does not take the date away, even a withdrawal that comes early. The date is lost only if USCIS revokes the approval for fraud or willful misrepresentation of a material fact, the labor certification behind it is revoked or invalidated, or the approval rested on a material error. A denied petition, by contrast, establishes no date to retain.
Do not confuse keeping the date with keeping the approval — a second 180-day clock controls that. If the old employer withdraws an I-140 180 days or more after it was approved, or after the related I-485 has been pending 180 days or more, the petition remains approved despite the withdrawal, and it can still support a portability move and H-1B extensions past six years. If the employer withdraws before either clock reaches 180 days, the approval is automatically revoked: a pending I-485 built on it fails with it, and the approval can no longer support new extensions — even though, as above, the priority date itself survives for a future petition. The same employer's business closing is treated on the same timing. This is why the date of an I-140 approval, and the date an I-485 was received, should be counted before anyone resigns, not after.
Changing employers also does not have to cost you H-1B time past the usual six-year limit, if the green card case is far enough along. In one-year increments, H-1B status can be extended past six years when a labor certification or an I-140 was filed at least 365 days earlier and that process is still alive — AC21 section 106(a). In increments of up to three years, it can be extended when you have an approved I-140 and an immigrant visa is not available to you because of the per-country limits — AC21 section 104(c). For the three-year extension, the employer filing the H-1B petition does not have to be the employer that filed the I-140, so a new employer can extend you on the old employer's approved petition, as long as that approval has not been revoked — which is another reason the withdrawal timing above matters.
One thing portability is not: a way to change green card categories. Moving a case between EB-2 and EB-3 — a downgrade or an upgrade — is not a section 204(j) port. It takes a new I-140 petition, sometimes on the same labor certification where the employer and the job are unchanged and the certification supports the new category, and often on a new one, particularly with a new employer or a job with higher requirements. The retained priority date is what makes that new petition valuable, and asking USCIS to transfer a pending I-485 to a different underlying petition is yet another, separate request. Keep the three ideas apart — porting a job, retaining a date, and changing categories — because each has its own test.
The practical work is done before the move, on paper. Put the old job description — the one in the labor certification and the I-140 — next to the new one, and compare duties, requirements, code, and wage honestly. Count every clock that applies: the I-485's 180 days, the I-140's 180 days, the 365 days for a one-year extension, and the days left on your I-94 and in any grace period. Keep the receipt and approval notices; the dates on them decide these questions. If you are the employer hiring, write the new job the way it actually is — an inflated description written to match the old code will not survive a comparison of the duties. If you are the worker, do not let a start date be set before someone has done that comparison for your case.
Tell me what you are working on and I will reply in writing, focusing on the issues involved.
General information, not legal advice. Requirements and processing change; we confirm current rules for your case.