If you are a citizen of another country and you want to work in the United States, you need the right visa before you start. The State Department is explicit about the order of operations: in most cases your employer starts the process, not you. Understanding that sequence is the difference between a clean application and months of avoidable delay.
This guide walks through the process end to end, in the order it actually happens, with links to the official government pages for every step.

There are 11 temporary worker visa categories, and which one you use depends on your job, your qualifications and sometimes your nationality. The most commonly used are:
The full category list and the official descriptions are on the State Department's Temporary Worker Visas page. If you are not sure which category fits, that is the first thing to settle, because it determines every form that follows.

For most temporary worker categories you cannot apply for the visa yourself until an employer has petitioned for you. In the State Department's words, "the prospective employer must file the petition on behalf of the applicant."
The form is Form I-129, Petition for a Nonimmigrant Worker, filed with US Citizenship and Immigration Services. Some categories also require an approved labor certification from the Department of Labor before the I-129 can be filed — the Form I-129 instructions confirm whether yours does.
What this means practically: your job in this phase is to secure an employer willing to sponsor you and to give them clean, complete documentation. You are not filing anything yourself yet.

USCIS reviews the petition. You cannot move forward until it is approved, and some categories are capped, meaning only a set number of petitions can be approved each year. Once approved, USCIS sends your employer a Form I-797, Notice of Action.
Keep the receipt number from that notice. You will need it to book your interview, and without it you cannot schedule.

With an approved petition you can apply for the visa itself. That starts with the Online Nonimmigrant Visa Application, Form DS-160. Two things people routinely get wrong here:

You pay a non-refundable visa application fee, listed by the State Department at $205 for petition-based temporary worker categories at the time of writing. Depending on your nationality you may also owe a visa issuance fee or a reciprocity fee after approval.
Fees change, so confirm the current amount on the official visa services fee schedule before paying rather than relying on any third-party figure, including this one.

Interviews are generally required, with limited exceptions, and a consular officer can require one of any applicant. You book at a US embassy or consulate where you live — applying outside your place of permanent residence makes it harder to qualify.
Wait times vary by location, season and visa category, sometimes by months. The State Department's own advice is blunt: apply early. You can check current waits with its appointment wait time tool before you commit to a start date with your employer.

Check your passport expiry before you do anything else, and renew if it is close — a passport that expires soon can limit how long your visa is issued for. Once you are in the United States, a visa lets you travel to a port of entry and request admission; it does not by itself guarantee entry, and it is not the same thing as your immigration status.
After you arrive, staying compliant matters as much as getting in: work only in the role and for the employer your petition covers, track your authorised period of stay, and file extensions before it lapses rather than after. Overstaying can trigger bars on returning.
Because the petition has to come from an employer, sponsorship is the real bottleneck for most applicants — not the paperwork. A few things that make a material difference:
Be sceptical of anyone charging you for a guaranteed job offer or a guaranteed visa. Neither can be guaranteed, and paying for a sponsorship offer is a common fraud pattern.
The State Department's required list is short and specific. Gather all of it before your appointment:
Individual embassies can request more, so check the instructions for the specific post where you are applying. If you are applying on an H-1B, H-2A or H-2B visa, read the State Department's Legal Rights and Protections pamphlet first — it sets out your rights and the protections available to you as a worker.
This is the requirement applicants most often miss. Most temporary worker applicants, with the notable exception of H-1B and L, have to demonstrate they intend to leave the United States at the end of their stay. You do that by showing compelling ties to your home country, which can include:
If you are on an H-1B or L, this test does not apply to you in the same way — those categories permit dual intent. On every other category, turning up without evidence of ties is a common and entirely avoidable refusal.
At the interview itself a consular officer decides both whether you are eligible and whether the category you chose is the right one for your purpose of travel. Digital fingerprint scans are taken as part of the process, usually during the interview. Some applications then need further administrative processing, and the officer will tell you if yours does.
Nothing on this page is legal advice, and employment visa rules change often. For anything case-specific — whether your role meets the specialty occupation test, whether a cap applies to you, how a prior refusal affects you — talk to a licensed immigration attorney or your employer's HR team. The official USCIS Working in the United States hub is the authoritative starting point.
If your route is the O-1A or EB-1A category rather than an employer-sponsored H or L visa, the bar is different. You are not proving that a company wants to hire you — you are proving recognition in your field, and that means producing evidence: press coverage in recognised publications, published work, and judging or peer-review roles.
That evidence is what Promo Panda builds. We are a PR firm working with over 150 immigration attorneys to assemble the media portfolios they submit for O-1 and EB-1A cases — from press placements to scholarly articles and judging opportunities. If that is the path you are on, see how EB-1A media coverage works.