Priority Date Porting: How to Use an Earlier I-140 to Move Up in Line

What Is Priority Date Porting?

Priority date porting is when you have two approved I-140 petitions — an older one from a previous employer and a newer one from your current employer — and you ask USCIS to use the earlier priority date from the old petition on your new petition. Instead of starting over at the back of the line with your new petition's date, you keep your original place in queue.

The legal basis is INA §203(b) and the AC21 framework. The key principle: the priority date is a property of the beneficiary, not the petition or the employer. Once you earn a priority date through an approved I-140, that date follows you — even if the employer who filed it is no longer part of your life.

When Can You Port a Priority Date?

Priority date porting is available whenever you have a second I-140 petition filed — whether with the same employer or a different one, and whether in the same EB category or a different one. The critical requirements are about the old I-140, not the new one.

The old I-140 must be:

• Approved — a pending I-140 or a denied I-140 cannot be used for porting
• Not revoked for fraud or misrepresentation — if USCIS revoked it due to fraud, the date is gone

The old I-140 does NOT need to be:

• From the same employer as your new I-140
• In the same EB category as your new I-140
• Still active or the basis of any current employment

Can I Port This Date? Common Scenarios

Use this table to quickly assess whether your situation qualifies for priority date porting. Each row represents a different scenario based on the relationship between your old and new petitions.

The common thread: the old I-140 must be approved (or have been approved and withdrawn after 180 days), and it must not have been revoked for fraud or misrepresentation.

EB-3 to EB-2 and Other Category Upgrades

Priority date porting is most commonly used when an applicant upgrades from a lower EB category to a higher one. The two most frequent upgrade paths are:

EB-3 to EB-2 upgrade (most common)

Many applicants were originally sponsored in EB-3 (often because the employer filed under the minimum qualifying requirements) but have since completed a master's degree or taken a role that qualifies for EB-2. A new employer files an EB-2 I-140, and you request that USCIS apply your older EB-3 priority date to the EB-2 petition. You move forward in the faster EB-2 queue while keeping your original priority date.

EB-2 to EB-1 upgrade

If you originally filed under EB-2 and later qualify for EB-1 (extraordinary ability, outstanding researcher, or multinational manager), you can port the earlier EB-2 date to the EB-1 petition. Since EB-1 India dates have historically been current or close to current, this combination can be particularly powerful — you get the faster EB-1 queue with an earlier priority date from your EB-2 filing.

• Example: EB-2 I-140 approved in 2015 (India). EB-1 I-140 approved in 2022. Port the 2015 date to the EB-1 petition. EB-1 India dates are currently current — you may be able to file I-485 immediately using the 2015 date in EB-1.

How to Request Priority Date Porting

USCIS does not automatically port a priority date when you file a new I-140. You must request it explicitly. Here is the step-by-step process:

1. Locate your old I-140 approval notice (I-797). You need the receipt number from the old I-140. It starts with letters like EAC, WAC, SRC, or LIN followed by numbers. If you don't have the physical notice, your immigration attorney should have a copy, or you can request it from USCIS through a FOIA request.
2. Get your new I-140 approved. Porting requires a second, currently approved I-140. If your new petition is still pending, you cannot yet request porting. Wait for the approval notice.
3. Draft a priority date porting request letter. Write a cover letter addressed to USCIS (your field office or the National Benefits Center, depending on where your I-485 is pending). The letter should state: your full name, A-number, I-485 receipt number, and explicitly request that USCIS apply the priority date from the old I-140 (cite its receipt number) to your current I-485 proceedings. Attach a copy of the old I-140 approval notice.
4. Submit the request. If you are filing a new I-485 (priority date just became current), include the porting request letter and old I-140 approval notice as part of your I-485 filing package. If your I-485 is already pending, send the letter and supporting documents to the USCIS office or service center handling your case. Your attorney can submit this as a standalone request or in response to an RFE.
5. Follow up if needed. After submitting, USCIS will note the ported date in their internal system. There is no separate confirmation notice. If you reach an interview or receive an RFE, the officer will reference the ported date in their evaluation.

Your immigration attorney should draft or review this letter. While the request itself is straightforward, the documentation requirements and the specific USCIS address to submit it to vary based on whether your case is at a service center, the NBC, or a field office.

How to Confirm the Port Worked

This is one of the most confusing parts of priority date porting: USCIS does not send you a confirmation letter or update your I-485 online status when a priority date port is accepted. Your case in the online portal will continue to show "Case Was Received" with no visible change.

The ways to verify the ported date has been recorded:

• InfoPass appointment (now called USCIS Infopass/in-person appointment): You can request an in-person appointment at a USCIS field office and ask an officer to confirm the priority date on file for your I-485. Bring copies of both I-140 approval notices.
• RFE or NOID response: If USCIS issues an RFE on your case, the response from USCIS will reference the priority date they have on record. This is often the first confirmation applicants see.
• Interview scheduling: When your case is called for an interview, the scheduling notice will reflect the priority date USCIS is using. If it shows the earlier date, the port worked.
• Attorney inquiry: Your attorney can submit a case status inquiry or contact the service center directly to confirm the priority date on record.

What People Get Wrong About Priority Date Porting

Several persistent misconceptions lead people to either miss the opportunity entirely or take unnecessary steps.

Mistake 1: Thinking the new employer needs to agree

The new employer's cooperation is not required for priority date porting. Porting is a relationship between you and USCIS. Your new employer filed the new I-140 — their involvement ends there. They do not need to sign anything, approve anything, or even be aware that you are requesting to port a date from a previous employer.

Mistake 2: Thinking you need to maintain a relationship with the old employer

You do not need to still work for the old employer, have a current offer from them, or maintain any contact with them. The only thing that matters is that the old I-140 was approved and was not revoked for fraud. The employer could have gone out of business years ago — the approved I-140 and the priority date it carries still belong to you.

Mistake 3: Assuming USCIS will do it automatically

USCIS does not automatically check whether an applicant has an older I-140 with a better priority date. If you do not request the port in writing and provide the old I-140 receipt number, your I-485 will be adjudicated using the priority date on the current petition. The request must be explicit and documented.

Mistake 4: Thinking the old and new I-140 must be in the same EB category

They do not. An old EB-3 date can be ported to a new EB-2 petition. An old EB-2 date can be ported to a new EB-1 petition. The category of the new I-140 is what determines which queue your I-485 waits in — the priority date from the old petition just determines your place within that queue.

What Can Go Wrong

Priority date porting is a legitimate and well-established practice, but it is not without risk. Be aware of these scenarios before proceeding.

USCIS revisiting the old I-140 at adjudication

When your I-485 is finally adjudicated, USCIS can reexamine the underlying I-140 — including the old one whose priority date you ported. If the old I-140 was approved under a category that required stringent documentation (EB-1 extraordinary ability, EB-1 outstanding researcher, EB-2 National Interest Waiver), an officer might question whether you truly met the standard at the time of approval. This is more likely if USCIS policy interpretations have tightened since the original approval. Having thorough documentation from the original filing is critical.

Gaps in documentation

If you no longer have the old I-140 approval notice and cannot reconstruct the receipt number, porting becomes difficult. USCIS can sometimes locate approvals using your A-number and biographical data, but this adds time and uncertainty. Keep copies of every I-140 approval notice you have ever received — permanently.

The 180-day window for withdrawn petitions

If your old I-140 was withdrawn by the employer and you are relying on AC21 protection to preserve the priority date, you need to be certain your I-485 had been pending for 180 days at the time of withdrawal. If there is any ambiguity about the timing, an attorney should review the exact dates before you rely on that priority date for porting.