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Transfer of Underlying Basis / Interfiling

Pending Form I-485 • Transfer of Basis

Transfer of Underlying Basis / Interfiling

A person with a pending Form I-485 may sometimes become eligible for permanent residence through a different immigrant petition or preference category. Rather than filing an entirely new adjustment application, the applicant may be able to ask USCIS to transfer the underlying basis of the existing I-485.

The procedure is sometimes informally called interfiling, but USCIS's Policy Manual refers to it as a transfer of underlying basis.

Transfer is not automatic. USCIS treats the request as discretionary, and continuity of eligibility, continued pendency, eligibility under the new basis, and visa availability can determine whether the request may be granted.

USCIS termTransfer of underlying basis
Common informal termInterfiling
New I-485 generally?No
Legal reviewAugust 30, 2026
Direct Answer

Can a Pending Form I-485 Be Moved to a Different Immigrant Petition?

Potentially, yes. USCIS may allow an applicant to transfer a pending Form I-485 from one qualifying immigrant petition or adjustment basis to another if the transfer requirements are satisfied.

The applicant generally does not file another Form I-485 or pay another adjustment filing fee merely to request the transfer. Instead, the applicant submits a written request identifying the new underlying basis and supplies evidence establishing eligibility.

USCIS retains discretion to grant or deny the request.

Why Transfer?

A Better Immigrant Basis Can Arise While I-485 Is Pending

EB-3 to EB-2

An employment-based applicant may obtain another I-140 in a preference category with a more favorable Final Action Date.

Employment to Family

An applicant with a pending employment-based I-485 may later marry a U.S. citizen and seek adjustment through an immediate-relative petition.

Family to Employment

An applicant may become eligible through a qualifying employment petition while a family-based adjustment application remains pending.

Different Employment Petition

A new employer or new immigrant classification may create another potential basis for a pending I-485.

Special Immigrant to Another Basis

A person adjusting through a special immigrant petition may later obtain a family- or employment-based immigrant basis.

Diversity Visa

USCIS policy also recognizes transfer requests involving an applicant who later becomes eligible through the Diversity Visa Program, subject to program deadlines.

Requirement One

There Must Be Continuity of Adjustment Eligibility

The applicant cannot allow the original basis to disappear and then try to revive the I-485 through a later petition. USCIS requires continuity of underlying eligibility through the date it receives the transfer request.

Transfer Requested Before Original Basis Fails

A replacement petition may potentially become the new basis if the request is timely and all transfer requirements are satisfied.

Original Basis Already Terminated

If the original basis was withdrawn, denied, automatically revoked, or otherwise ceased to support eligibility before a valid transfer request, continuity may be broken and transfer may be unavailable.

Requirement Two

The Form I-485 Must Continue to Be Pending

Pending

A transfer request must concern an adjustment application that remains pending before final adjudication.

Denied

USCIS policy does not permit transfer after a final denial merely because the adjustment case is later reopened or reconsidered.

Withdrawn

An applicant generally cannot withdraw the I-485 and later request transfer of that same no-longer-pending application to another basis.

The transfer request must reach USCIS before final adjudication of the Form I-485.

Requirement Three

The Applicant Must Qualify Under the New Immigrant Category

1

Valid New Basis

The applicant must identify a qualifying immigrant petition, classification, or statutory basis that can lawfully support adjustment.

2

Supporting Evidence

The transfer request should include the initial evidence necessary to establish eligibility under the substituted category.

3

Adjustment Rules Can Change

The new basis may expose the applicant to different INA §245(c) bars, inadmissibility provisions, job-offer requirements, or derivative rules.

Requirement Four

A Visa Must Be Available Under the New Preference Basis

For a transfer to a numerically limited preference category, USCIS looks to visa availability under the new basis when the transfer request is received.

DateEventWhy it matters
January 2025Applicant files I-485 based on EB-3.The original filing must independently satisfy visa availability.
April 2026A separate EB-2 I-140 is approved.A potential new adjustment basis now exists.
August 2026Applicant requests transfer to EB-2.Visa availability under EB-2 is evaluated as of the transfer-request date.
ResultEB-2 must permit the requested transfer.The original EB-3 filing date does not by itself establish visa availability for the new EB-2 basis.
Pending and Approved Petitions

The New Petition Does Not Always Have to Be Approved First

Original basisNew basisTransfer potentially possible?
Approved petitionApproved petitionYes, if all other requirements are met.
Approved petitionPending petitionPotentially, if the new category legally permits concurrent I-485 filing before petition approval.
Pending petitionApproved petitionPotentially yes.
Pending petitionPending petitionPotentially, if the new category allows concurrent filing and all other requirements are satisfied.

If the new immigrant category does not permit adjustment filing before the underlying petition is approved, USCIS generally cannot transfer the pending I-485 to that petition while it remains unapproved.

Filing Procedure

A Transfer Request Must Be Made in Writing

1

Identify the Pending I-485

Include the applicant's identifying information and a copy of the Form I-485 receipt notice.

2

Clearly Designate the New Basis

The written request should identify the specific immigrant petition or classification the applicant wants USCIS to use.

3

Provide Eligibility Evidence

Include the petition receipt or approval notice, supporting documentation, visa-availability evidence where relevant, and other required initial evidence.

Generally, a new Form I-485 and another I-485 filing fee are not required solely to request transfer of the underlying basis. A transfer into INA §245(i), however, can require Form I-485 Supplement A and the applicable additional statutory sum.

One Basis at a Time

A Pending I-485 Has Only One Designated Underlying Basis

USCIS policy provides that only one petition may serve as the basis of a Form I-485 at a given time. If USCIS grants the transfer request, the replacement petition becomes the underlying basis and the original petition no longer supports that adjustment application.

This makes the choice strategic. A transfer should not be treated as merely adding another petition to the I-485 while preserving every prior basis simultaneously.

Priority Dates

Changing the Basis Does Not Automatically Preserve the Old Priority Date

General Rule

The priority date associated with the replacement petition generally becomes relevant to the transferred adjustment application.

Employment-Based Retention

Separate regulations can permit retention of an earlier priority date in qualifying EB-1, EB-2, and EB-3 cases. Priority-date retention must be established independently.

Transfer of underlying basis and priority-date retention are different rules. Do not assume the original petition's priority date automatically follows the I-485 to a new immigrant petition.

Adjustment Bars

A New Basis Can Change Which INA §245 Rules Apply

Immediate Relative to Employment

An applicant transferring away from immediate-relative adjustment may lose exemptions from certain INA §245(c) bars and need to establish another exception such as INA §245(k).

Employment to Immediate Relative

A transfer to a qualifying immediate-relative basis may change the applicability of some adjustment bars, but it does not eliminate every INA §245 requirement or every ground of inadmissibility.

USCIS specifically considers whether the transfer would subject the applicant to new adjustment bars or inadmissibility consequences when deciding whether to exercise discretion favorably.

Transfer vs. AC21

Changing the Petition Is Not the Same as Porting the Job

INA §204(j)

AC21 Job Portability

A qualifying EB-1, EB-2, or EB-3 adjustment applicant may change to a same-or-similar permanent job without transferring the I-485 to a new immigrant petition when the statutory portability requirements are satisfied.

Transfer

New Underlying Petition

A transfer request affirmatively replaces the immigrant petition or category serving as the basis of the pending adjustment application.

Important portability consequence: USCIS policy states that when an employment-based applicant transfers the I-485 to a different employment-based category based on a new Form I-140, the 180-day period for potential INA §204(j) portability under the new basis runs from the transfer request.

Derivative Applicants

The Principal's Transfer Can Affect Every Family Member

Principal Must Remain Eligible

The principal must maintain the continuity required for transfer of the underlying adjustment basis.

Relationship Must Continue

A derivative spouse or child must continue to have the qualifying relationship to the principal.

New Basis Must Permit Derivatives

If the principal transfers to a classification that does not permit derivative beneficiaries, a derivative's pending I-485 can lose its underlying basis.

Before transferring the principal applicant's I-485, analyze the effect on every derivative spouse and child. A transfer that helps the principal can create an eligibility problem for a derivative.

USCIS Discretion

Meeting the Minimum Rules Does Not Guarantee Transfer

Reason for Transfer

USCIS may consider why the applicant seeks to change the adjustment basis.

Available Documentation

A complete request supported by the required initial evidence can make the new eligibility basis easier to evaluate.

Processing Complexity

USCIS may consider jurisdictional issues, file transfers, additional evidence, and the amount of processing already completed.

USCIS describes transfer as discretionary. Except for relatively straightforward transfers among the first three employment-based categories, an applicant should not assume that a transfer request will automatically be granted.

Transfer Examples

Common Transfer-of-Basis Scenarios

Original basisPotential new basisPrimary issue
EB-3EB-2New petition, priority date, visa availability, and portability consequences.
EB-2EB-1Whether new EB-1 basis is valid and current when transfer is requested.
Employment basedU.S. citizen spouseMarriage petition, immediate-relative eligibility, and adjustment consequences.
Immediate relativeEmployment basedPossible loss of immediate-relative exemptions from INA §245(c) bars.
DerivativePrincipal employment basisIndependent petition, visa availability, and individual adjustment eligibility.
Common Mistakes

Interfiling and Transfer Errors

Waiting Until the Old Basis Is Gone

A break in continuity before the transfer request can prevent USCIS from transferring the existing adjustment application.

Assuming Transfer Is Automatic

USCIS treats transfer requests as discretionary.

Ignoring Visa Availability

A preference-based transfer requires visa availability under the new basis when USCIS receives the transfer request.

Assuming Both Petitions Support the I-485

Only one petition serves as the designated underlying basis at a given time.

Confusing Transfer With AC21

A same-or-similar job change under INA §204(j) is not the same procedure as replacing the immigrant petition supporting the I-485.

Ignoring Derivatives

The principal's new basis may change or eliminate derivative eligibility for a spouse or child.

Frequently Asked Questions

Transfer of Underlying Basis FAQs

What is interfiling?

“Interfiling” is an informal term commonly used for asking USCIS to transfer a pending Form I-485 from one immigrant petition or basis to another. USCIS generally calls the procedure a transfer of underlying basis.

Do I need to file a new Form I-485 to change the underlying petition?

Generally no. USCIS policy states that a new adjustment application and filing fee ordinarily are not required solely to request transfer of the underlying basis.

Does the new petition have to be approved before I request transfer?

Not always. If the new immigrant category permits concurrent adjustment filing before petition approval, a pending petition may potentially serve as the new basis. If concurrent filing is not permitted, the new petition generally must first be approved.

Does my new priority date have to be current?

For a transfer to a numerically limited preference category, visa availability must generally exist under the new basis when USCIS receives the transfer request.

Can both I-140 petitions support the same I-485?

No. USCIS policy provides that only one petition serves as the underlying basis of an adjustment application at a given time.

Is transfer of underlying basis the same as AC21 portability?

No. AC21 portability can permit a qualifying job change without replacing the underlying petition. Transfer of basis changes the petition or immigrant category supporting the I-485.

Can USCIS deny a transfer request even if I qualify for the new category?

Yes. USCIS treats transfer requests as discretionary and may consider eligibility, visa availability, continuity, documentation, processing complications, and other relevant factors.

Pending Form I-485 Strategy

Would Another Immigrant Basis Move the Case Forward?

The Messersmith Law Firm, P.A. reviews competing immigrant petitions, priority dates, visa availability, continuity of adjustment eligibility, INA §245(k), AC21 portability, derivative consequences, and transfer-of-underlying-basis strategy.

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