Is there a filing fee for Form G-28?

No. Form G-28 has no filing fee.USCIS accepts it at no cost.Your immigration attorney may charge their own professional fees for representing you, but the form itself is free to submit alongside your visa application, petition, or appeal.

How long does it take to get an O-1A visa as a data scientist?

Regular processing times vary but can take several months. Premium processing, available for a fee of $2,965 as of March 1, 2026, guarantees an initial response from USCIS within 15 business days.The total timeline also depends on how long it takes to assemble your evidence package, collect recommendation letters, and prepare the petition with your immigration attorney.

Is the O-1A harder to get than the O-1B?

Neither is universally harder, because both use a similar "3 of X" structure and a peer advisory opinion, and both ask you to show you're at the top of your field. The real difficulty depends on how well your evidence matches the category you file under.The one exception is the O-1B for motion picture and television, which applies a higher extraordinary achievement standard than the arts or the O-1A.

How many support letters do I need?

Three to five well-written letters is typical. Quality matters far more than count: one detailed letter from a CEO who supervised the petitioner beats five generic letters from peers.

Do musicians qualify for the O-1B visa?

Yes. The O-1B visa covers individuals with extraordinary ability in the arts, and musicians, whether performers, composers, producers, or session players, fall directly into this category.You need to meet at least 3 of the 6 O-1B criteria with documented evidence. The bar is "distinction" or "extraordinary ability" in your field, not global fame, so a strong professional career with recognizable milestones often qualifies.

O-1A visa processing time - how long does it take?

The O-1A visa processing time varies depending on the type of processing you chose: premium or standard . With premium processing, USCIS guarantees a response on your I-129 petition (the form used to request O-1A status) within 15 business days. On the other hand, standard processing can take several months depending on the USCIS service center and current backlogs.

This guide breaks down O-1A processing times at each stage, explains premium versus standard processing, and covers what happens after USCIS approves your case.

O-1A visa processing timeline

The total timeline of your O-1A visa depends on the processing speed you choose, but there are several factors you must consider in the overall processing time for your O-1A.

1. Filing of Form I-129

A formal O-1A petition begins when a U.S. employer or authorized agent files the Form I-129 with USCIS on behalf of the beneficiary (that'd be you.)

For O-1A cases, the petition must already include all the evidence demonstrating extraordinary ability. You can double-check all the documents your O-1A petition needs here to make sure you present a strong case.

Be aware that, the I-129 petition is only one part of the overall timeline. If you are outside the United States, you will also need to schedule and attend a consular interview after USCIS approves your petition. Depending on the embassy, this can add anywhere from two weeks to several months. If you are already in the U.S. and request a change of status, the path is often faster because you can begin working as soon as your petition is approved.

2. Choosing O-1A premium or standard processing

When you file your O-1A petition (Form I-129), you choose between premium processing or standard processing. This decision impacts how long you’ll have to wait for USCIS initial decision (which may not be an approval necessarily.)

Processing type	Timeline	Cost	Outcome
Premium processing	15 business days	$2,805*	USCIS approves, denies, or issues RFE
Standard processing	Up to 6 months	No additional fee	Same outcomes, longer wait

*Note: The premium processing fee is currently $2,805 and will increase to $2,965 effective March 1, 2026, following a recent USCIS fee revision. You can find the most recent fee schedule on the official USCIS website.

Premium processing guarantees USCIS will take action within 15 business days. That action could be an approval, denial, a Notice of Intent tot Deny (NOID) or a Request for Evidence (RFE). If USCIS issues an RFE, the 15-day clock pauses and restarts after you submit your response.
Standard processing times vary based on the service center handling your case. You can check current estimates on the USCIS processing times page, but these are approximations that change frequently based on filing volumes and staffing.

For O-1A applicants, premium processing is popular because the visa doesn’t have an annual cap. You can file at any time, and a quick decision helps you plan your move or start work sooner. Make sure to evaluate wether the EB-1A or the O-1A visa is the best fit for you before moving forward with your application.

How long will your O-1A visa take?Get a personalized price and timeline estimate based on your visa type and nationality.

See visa timelines

How O-1A visa premium processing works?

To request premium processing for an O-1A visa application, your petitioner must file Form I-907 alongside the mandatory I-129 petition. You can also submit it later to upgrade a pending case.

Like we said previously, once USCIS receives the premium processing request, they are required to take action within 15 business days. If USCIS issues an RFE, the premium clock pauses until you respond, then restarts when USCIS receives your response.

In practice, USCIS generally meets the premium processing deadline. If they do not act within the 15-business-day window, you can request a refund of the premium processing fee.

You can calculate how long your O-1A visa petition might take with Tukki's timeline and pricing calculator. Just select the choices that best fit your profile and you'll be ready to go!

What happens if you receive an RFE on your O-1A visa petition?

A Request for Evidence (RFE) does not mean your visa has been denied. It simply means the USCIS officer evaluating your case requires more information or documentation before making a final decision.

When USCIS issues an RFE, they specify what evidence they need and give you a deadline to respond (the draft notes typically 87 days, though it can vary). It's very important that you respond by the deadline specified by the USCIS. If you miss it, chances are your petition will be denied based on the evidence already on file.

Some common reasons for O-1A RFEs include:

Not enough evidence that you meet at least 3 of the 8 extraordinary ability criteria
Unclear documentation for awards, publications, or other achievements
Questions about whether your planned work in the U.S. relates to your area of extraordinary ability
Expert letters that do not clearly explain recognition and impact in the field

After you respond to the RFE, USCIS reviews the case again. If you chose premium processing, the 15-business-day clock will restart the moment USCIS receives your response. Without premium processing, there's no specific deadline for a post-RFE decision to your O-1A application.

Check our O-1A Visa Guide

Change of status vs consular processing: what adds time?

After approval, the next step depends on where you are and whether you need a visa stamp.

Change of status (already in the U.S.)

If you’re in the U.S. on another valid status, the petitioner can request a change of status in the I-129. If approved, you can start working on the petition start date.

This usually does not add time beyond I-129 processing. With premium processing, work can begin within a few weeks.

But change of status does not provide an O-1 visa stamp. If you travel internationally, you’ll need a consular appointment and stamp to return.

Consular processing (outside the U.S. or need a visa stamp)

If you’re outside the U.S. (or want the visa stamp first), the timeline includes:

I-129 approval
DS-160 completion + interview scheduling
Consular interview
Visa issuance (often within days after interview if approved)

This stage is the biggest timing variable. Appointment wait times vary widely by consulate and can be weeks or several months.

3 timelines for your O-1A visa

Senario 1: Change of status (in U.S., premium processing)

USCIS acts within about 15 to 20 business days, and you can start working as soon as the petition is approved.

Typical total timeline: about 2 to 4 weeks from filing to work authorization.

Scenario 2: Consular processing (outside U.S., premium processing)

USCIS acts within about 15 to 20 business days, then you attend a consular interview. Depending on the embassy, this adds about 2 weeks to 3+ months.

Typical total timeline: about 1 to 4 months.

Scenario 3: Standard processing + consular

USCIS adjudication may take about 3 to 8+ months, plus time for the consular interview.

Typical total timeline: about 4 to 12+ months.

What can affect your O-1A visa processing time?

Several factors can influence your O-1A timeline beyond premium versus standard processing.

Petition quality. Strong, well-organized evidence and expert letters can reduce delays mitigating RFE risk. RFEs add time because you must prepare a response and wait for review again.
Service center workload. USCIS backlogs change over time. Premium processing largely removes this uncertainty because of the deadline.
Consulate availability. Interview wait times vary by location, season, and local demand.
RFE response speed. If you receive an RFE, responding sooner usually helps you reach a decision faster, especially if you are in premium processing.