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There is no USCIS procedure for transferring an already-issued green card between employers. The phrase “How to transfer your green card to a new employer without losing your status” usually describes one of two different situations: you may already be a lawful permanent resident, or you may still have an employment-based Form I-485 pending.
The AC21 portability rule applies to certain pending employment-based adjustment applications. It can let a qualifying applicant change to a new permanent, full-time job after the I-485 has been pending for at least 180 days, provided the new position is in the same or a similar occupational classification as the job in the underlying I-140. The request is made with Form I-485 Supplement J; reaching 180 days alone does not guarantee approval.
First identify which “green card” situation you have
You already became a permanent resident
If USCIS approved your adjustment application and you became a lawful permanent resident, an employer-to-employer “transfer” is not the process described in USCIS’s AC21 portability guidance. That guidance concerns a pending employment-based adjustment application, not an issued permanent-resident card. Changing jobs after permanent residence has been granted is therefore a different question from preserving the job basis of a pending I-485.
Do not file Supplement J simply because you changed employers after becoming a permanent resident. Instead, identify the immigration issue you actually need to resolve, such as maintaining residence or complying with conditions that may apply to your particular status. Those questions are outside the portability procedure covered here.
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Your employment-based Form I-485 is still pending
If you have a pending employment-based I-485, AC21 portability may allow you to move to a new employer without abandoning the adjustment application’s employment basis. USCIS describes the core rule in its Policy Manual chapter on transfer of an underlying basis and in the Supplement J instructions dated April 1, 2024.
This is not an automatic transfer of a card or a blanket right to accept any new job. USCIS must evaluate the pending I-485, the underlying immigrant petition, the timing, the occupational classification and the terms of the new offer.
| Situation | What the USCIS portability rule addresses | Key question |
|---|---|---|
| Permanent residence already granted | Not an AC21 portability filing for a pending adjustment case | What separate permanent-resident obligation or immigration issue applies? |
| Employment-based I-485 pending | Possible portability to a qualifying new job under INA 204(j) | Has the I-485 been pending at least 180 days, and is the new offer qualifying? |
What AC21 portability actually permits
For a qualifying employment-based adjustment applicant, portability preserves the adjustment application despite a change in employer. USCIS generally requires all of the following:
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- The I-485 has been pending for at least 180 days, measured from the receipt date.
- The new job offer is permanent and full time under the Form I-485 instructions.
- The new position is in the same or a similar occupational classification as the position described in the I-140.
- The case otherwise remains eligible, including the applicable employment category, petition history and adjustment requirements.
The 180-day threshold is a filing threshold, not a promise that USCIS will approve portability. The Supplement J instructions state that the I-485 must have been pending for 180 days or more since its receipt date before a qualifying portability request is filed. Filing too early can result in rejection.
Eligibility checklist before you leave the original job
1. Confirm that the pending application is the right type
The relevant process is for an employment-based adjustment applicant with a properly filed Form I-485. USCIS describes portability in the context of certain EB-1, EB-2 and EB-3 adjustment applicants. A family-based I-485, a case that has already been approved, or an application with a different legal basis does not become portable merely because the applicant has an employment offer.
2. Calculate the 180-day date from the I-485 receipt date
Use the receipt date shown on the USCIS I-797 receipt notice, not the date you mailed the package, the date an attorney opened the file or the date an I-140 was filed. The Supplement J instructions use the I-485 receipt date as the starting point. Wait until the application has been pending for at least 180 days before submitting Supplement J to request portability.
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Keep the receipt notice and a written calculation in your case file. If USCIS rejected the original I-485 and you later refiled, determine which properly filed application is still pending; do not assume time from a rejected filing carries forward.
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A pending I-140 does not automatically prevent you from filing a portability request once the I-485 has reached the 180-day threshold. However, USCIS must adjudicate and approve the I-140 before it can approve the portability request, assuming all other requirements are met. A pending petition therefore creates timing risk: filing Supplement J does not convert an unapproved I-140 into an approved petition.
Confirm which employer, job and immigrant category the I-140 describes. The comparison is made against that underlying offered position, not simply against your current job title.
4. Verify that the new offer is permanent and full time
USCIS’s Form I-485 instructions call for a permanent, full-time position. A temporary assignment, an arrangement with no permanent employment expectation or a part-time offer may not satisfy the requirement. The offer should be concrete enough for the employer to provide the details requested by Supplement J.
5. Compare occupational classifications, not just titles
The new position must be in the same or a similar occupational classification as the job offered in the I-140. Two jobs can have similar titles but materially different occupational classifications, while different titles can describe related work. Compare the actual duties, required skills, field and level of responsibility described in both offers, and preserve the written descriptions used for the comparison. A title match alone is not a conclusion about eligibility.
6. Check for a transfer of the underlying basis
Portability is different from moving a pending I-485 to a different employment-based category based on a new I-140. USCIS states that if you request a transfer to a new employment-based category, the 180-day portability period is not available until 180 days after the transfer request. In practical terms, transferring the underlying basis can reset the portability clock even if the original I-485 had already been pending for more than 180 days.
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How to request portability with Form I-485 Supplement J
- Identify the purpose of the filing. Supplement J has two functions: it can confirm that the original I-140 job offer remains bona fide, or it can request portability to a new qualifying offer. Select and complete the portions that match your situation.
- Confirm the 180-day threshold. Use the I-485 receipt date and make sure at least 180 days have elapsed before requesting portability. Do not treat the date of an employment authorization document, an I-140 receipt or a job-change date as a substitute.
- Review the underlying petition and adjustment record. Note the I-140 employer, offered position, employment category and the status of the I-485. If the I-140 is still pending, understand that USCIS must approve it before approving portability.
- Obtain the new employer’s offer information. The employer must provide the new position details requested by the current Supplement J form and instructions, including information needed to establish that the offer is permanent and full time and that the occupational classification is the same as or similar to the original one.
- Complete the current form edition. USCIS identifies the Supplement J form edition dated January 20, 2025 at the official form page. Always use the edition and filing instructions USCIS identifies as acceptable when you submit.
- Submit the form using the current USCIS instructions. The correct filing location and any filing requirements can change. Follow the address and submission directions in the current USCIS form instructions rather than relying on an old checklist or a former employer’s filing practice.
- Keep a complete copy and monitor the case. Retain the signed form, employer information, delivery evidence and the I-485 and I-140 receipt notices. A Supplement J receipt or approval does not replace the need to monitor the underlying adjustment application and respond to any USCIS request.
What Supplement J does—and does not—decide
Supplement J documents the job offer and asks USCIS to recognize the qualifying portability basis. It does not itself approve permanent residence, establish that the I-140 will be approved or decide every issue in the I-485.
Most importantly, USCIS expressly warns in the Supplement J instructions: In adjudicating Supplement J, U.S. Citizenship and Immigration Services (USCIS) does not make a determination whether you have current work authorization with the prospective employer.
Filing the form alone is therefore not permission to start working for the new employer.
Work authorization is a separate question. Before beginning employment, confirm that you have independent authorization that covers the new job, such as valid employment authorization under the applicable category or another lawful basis. If your authorization is expiring, pending or restricted, obtain case-specific advice before relying on portability.
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EB-1, EB-2 and EB-3 are not identical
The USCIS Policy Manual describes portability for certain applicants in the EB-1, EB-2 and EB-3 categories, but the rules are not uniform across every subcategory. The exact I-140 basis matters. Do not assume that an approval in one employment-based classification creates the same portability result in another.
Extraordinary-ability cases
USCIS identifies exclusions for specified extraordinary-ability cases. Some of these petitions are self-petitioned and are not based on a permanent employer job offer in the same way as a labor-certification-based case. Review the precise category and petition basis before treating a job change as an AC21 portability request.
National interest waiver cases
USCIS also identifies exclusions and separate treatment for national-interest-waiver cases. A person with an EB-2 NIW petition may not be tied to one employer’s offer in the ordinary way, and NIW physicians have distinct requirements. Do not use a standard employer-change analysis without checking the NIW-specific rule that applies to the petition.
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Other self-petitioners
Some self-petitioners are not tied to a specific job offer. Their adjustment case may not require the same employer portability analysis as a petition based on a particular employer’s offer. The fact that a petition was self-filed is not enough to determine the result; the category and governing requirements control.
Common mistakes that can cost time or status
Filing before 180 days
The most basic timing error is sending Supplement J before the I-485 has been pending for 180 days. USCIS states that an early filing can be rejected. Recalculate from the receipt date and use the current instructions before resubmitting.
Assuming any new employer qualifies
Portability is not a general job-change waiver. The new offer must be permanent, full time and in the same or a similar occupational classification. A higher salary, a familiar company name or a similar-sounding title does not establish those elements.
Treating the form as work authorization
Supplement J adjudication does not determine current work authorization with the prospective employer. Starting work solely because the form was filed can create an unauthorized-employment problem. Separate the portability filing from the authorization document or status that permits employment.
Ignoring an unapproved I-140
A pending I-140 does not automatically block filing after 180 days, but USCIS must approve the I-140 before approving portability. If the petition is denied, withdrawn or found ineligible, the portability request cannot cure that defect.
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Confusing portability with a category transfer
Moving the pending I-485 to a new employment-based category based on a new I-140 is a different procedure. USCIS says the 180-day portability period becomes available only 180 days after that transfer request. Filing the wrong type of request can therefore change the date on which portability becomes available.
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Relying on a verbal offer
Supplement J requires employer and position information. A verbal promise or an informal discussion does not give USCIS the documented offer details needed to evaluate permanence, full-time employment and occupational similarity.
How to organize a defensible job comparison
USCIS does not decide eligibility from the job title alone. Before filing, place the original I-140 offer and the new offer side by side and identify:
- The occupational classification associated with each position.
- The core duties and the work actually expected.
- The skills, education or experience required.
- The level of responsibility and supervision.
- Whether the new role is permanent and full time.
- Any material change in field, function or seniority that could make the positions dissimilar.
Use the descriptions from the original petition and the new employer’s written offer, not an abbreviated résumé label. If the comparison is difficult, obtain advice from a qualified employment-based immigration attorney before resigning or filing; the outcome depends on the facts of the particular petition and adjustment record.
A practical decision path
- Already a permanent resident? Do not treat the situation as a pending-I-485 portability filing. An issued card is outside the AC21 procedure described here.
- Still have a pending employment-based I-485? Continue to the next question.
- Has it been pending at least 180 days from the receipt date? If no, a portability request is premature. If yes, continue.
- Is the new job permanent and full time? If no, it does not meet the requirement stated in the I-485 instructions.
- Is the new job in the same or a similar occupational classification? Compare the actual roles, not just titles.
- Are you moving the case to a different employment-based category? If yes, treat that as a transfer of underlying basis; the 180-day portability period may restart from the transfer request.
- Does a category-specific exception apply? Check extraordinary-ability, NIW, physician and self-petitioner rules before relying on the general framework.
- Is your work authorization independently valid? Supplement J does not answer that question, so verify authorization separately before starting with the new employer.
Documents and dates to keep together
A well-organized file makes it easier to identify a timing or eligibility problem before it becomes a filing problem. Keep:
- The I-485 receipt notice showing the receipt date.
- The I-140 receipt and approval notices, if available.
- The original job offer and the position description used for the I-140.
- The new employer’s written offer and position description.
- The completed Supplement J and proof of submission.
- Employment authorization documents and expiration dates relevant to the proposed start date.
- Any USCIS notices concerning the I-485, I-140 or Supplement J.
These records do not guarantee approval, but they let you and your representative compare the jobs, verify the 180-day calculation and distinguish portability from a transfer of the underlying basis.
Bottom line
You cannot transfer an issued green card from one employer to another because the AC21 process is for certain pending employment-based I-485 cases. If your I-485 has been pending at least 180 days, the new offer is permanent and full time, and the job is in the same or a similar occupational classification as the I-140 position, Form I-485 Supplement J may preserve your adjustment basis. The I-140, category-specific rules, any transfer of underlying basis and your separate work authorization still control the result.
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