What is the difference between EB-1A and EB-1B?

EB-1A is for individuals of extraordinary ability and allows self-petitioning with no employer sponsor. EB-1B is for outstanding professors and researchers and requires a US employer to file Form I-140 on the petitioner's behalf, plus at least 3 years of teaching or research experience and a permanent research or tenure-track position. Both sit in the employment-based first-preference tier and share the same priority date timeline.

Is EB-1A or EB-1B harder to qualify for?

EB-1A has the higher evidence bar — "sustained national or international acclaim" — but the criteria list is more flexible (any 3 of 10). EB-1B requires evidence on 2 of 6 criteria, a lower count, but the threshold for each is interpreted strictly because the petitioner must be among the small percentage at the top of the academic field. For most petitioners with strong research records, EB-1B is slightly easier to satisfy on paper — but EB-1A frees you from employer dependence.

Can I file both EB-1A and EB-1B at the same time?

Yes. Many strong academic petitioners file both concurrently. EB-1A is self-petitioned and EB-1B is filed by the employer; the two petitions are independent and each requires its own brief, exhibits, and recommender letters. Total filing cost is $1,430 in USCIS fees plus the cost of preparing two distinct petition packages.

If my employer is willing to sponsor me, should I still file EB-1A?

Often yes. EB-1A gives you a green card that does not depend on staying with the sponsoring employer. With EB-1B, if your employment ends before adjustment of status (Form I-485) is approved, you may lose the approved I-140. With EB-1A, the I-140 is yours. For mid-career researchers who might change institutions, the EB-1A self-petition is structurally safer.

EB-1A Guide · Last reviewed 2026-06-21

EB-1A vs EB-1B: self-petition or employer-sponsored?

If you are a researcher, professor, or principal investigator weighing these two, the question is rarely whether you qualify. Your peers already know you are at the top of your field. The question is which paperwork path makes USCIS see what your colleagues already see — and whether you want your green card tied to one employer or not.

At a glance

	EB-1A	EB-1B
Preference category	First (EB-1)	First (EB-1)
Who files	You (self-petition)	Your US employer
Standard	Extraordinary ability with sustained national or international acclaim	Outstanding professor or researcher recognized internationally
Job offer required?	No	Yes — permanent research or tenure-track position
Years of experience required?	None specified	At least 3 years of teaching or research in the field
Criteria to satisfy	≥ 3 of 10 regulatory criteria	≥ 2 of 6 regulatory criteria
USCIS form / fee (2026)	I-140 / $715	I-140 / $715
Premium processing	$2,805 (15 business days)	$2,805 (15 business days)
Priority date — most countries	Current	Current
Priority date — India / China	2-3 years backlog	2-3 years backlog
Approval rate	~70-80%	~85-90%
Tied to specific employer?	No	Yes (until I-485 portability)

What EB-1B actually is

EB-1B, codified at 8 U.S.C. § 1153(b)(1)(B) and 8 C.F.R. § 204.5(i), is the green card category for outstanding professors and researchers. To qualify, you need three things:

International recognition as outstanding in your specific academic field.
At least three years of documented teaching or research experience in that field.
A job offer from a US employer for a tenured or tenure-track teaching position, a comparable permanent research position at a university or institution of higher education, or a permanent research position at a private employer (with at least three full-time researchers and documented accomplishments in the field).

The US employer files Form I-140 on your behalf. You cannot self-petition. The employer must submit evidence on at least two of six regulatory criteria — recognized prizes, membership in associations requiring outstanding achievement, published material in professional journals about your work, judging others' work, original scholarly contributions, or scholarly authorship.

The four real differences

Who controls the petition

EB-1A is yours. You file it, you control the timeline, you keep the approved I-140 if you change jobs. EB-1B belongs to your employer. If you change institutions before I-485 is approved (or before the 180-day portability window opens), you may need to restart with a new employer's petition. For mid-career researchers who change positions every 3-7 years, this matters.

Evidence threshold

EB-1A wants sustained acclaim — your work has mattered for years and continues to matter now. EB-1B wants international recognition as outstanding — your peers in other countries know your name and your contributions. The standards overlap heavily but the language is different. Petitioners who fit cleanly on EB-1B often also fit on EB-1A; the reverse is less common because EB-1A demands a longer track record across multiple categories of evidence.

Criteria count and shape

EB-1A lists 10 criteria; you must satisfy at least 3. The criteria span awards, memberships, published material about you, judging, original contributions, scholarly authorship, exhibitions, critical role, high salary, and commercial success in performing arts. EB-1B lists 6 criteria, you must satisfy 2, and the criteria are tighter to academic work. The shorter list does NOT mean an easier petition — USCIS applies the same final-merits determination to both.

Job-offer dependency

The biggest practical difference. EB-1A has no job requirement at any stage. EB-1B requires a permanent research or teaching position at the time of filing AND at the time of adjustment. If your employer withdraws the petition before adjudication, the case dies. With EB-1A your I-140 stays approved regardless of where you work.

Who should pick which

File EB-1A if:

You want a green card that survives a job change.
Your record runs across multiple categories — papers, awards, press, judging, leadership — not just publications and citations.
You may want to leave academia for industry, found a company, or move between institutions.
Your employer does not want to sponsor an immigrant petition.
You can file without your institution's cooperation.

File EB-1B if:

You have a tenure-track offer or permanent research position lined up at a US institution.
Your record is strong on publication and citation metrics but lighter on press, awards, or non-academic recognition.
Your employer is supportive and the institution has experience filing EB-1B petitions.
You plan to stay at the sponsoring institution through I-485 approval (typically 8-14 months after I-140).

File both if:

You qualify under both standards, which is common for senior researchers.
You want the redundancy. EB-1A approves on its own merit; EB-1B as backup gives you a second path if EB-1A is denied.
Concurrent filing of two I-140 petitions costs $1,430 in USCIS fees plus the preparation work for two distinct petitions. There is no penalty for filing both.

Two notes for academic petitioners

Most universities have an immigration office that will tell you the institution prefers EB-1B because it is what they know how to file. That is a reason for the institution, not for you. EB-1A is the petition that travels with you when you become a department chair somewhere else, or when you spin a company out of your lab.

The recommender letter pattern is mostly the same for both petitions, which means you can recycle 70% of the work. The exhibit binders differ in framing, not in source material. Researchers who file both concurrently with the same underlying record have a structural advantage over those who pick just one.

Score your record once, file both paths if it fits

The hardest part of EB-1A is not being extraordinary. It is documenting it in a shape USCIS reads. Upload your CV and a publication list. I will tell you where the EB-1A case is strong, where it is borderline, and whether your record also satisfies the tighter EB-1B framing. Same input, two analyses.

Score my case Read the 10 EB-1A criteria

Sources

EB-1A statute: 8 U.S.C. § 1153(b)(1)(A)
EB-1B statute: 8 U.S.C. § 1153(b)(1)(B)
EB-1A regulation: 8 C.F.R. § 204.5(h)(3)
EB-1B regulation: 8 C.F.R. § 204.5(i)
USCIS Policy Manual: Vol 6, Part F, Ch 2 — EB-1A
USCIS Policy Manual: Vol 6, Part F, Ch 3 — EB-1B
Controlling precedent: Kazarian v. USCIS