Employer visa sponsorship is the formal process by which a U.S. company petitions the federal government to hire a foreign worker, whether temporarily or permanently. The employer, not the worker, drives most of the paperwork, pays most of the fees, and carries the legal obligations that follow. Three federal agencies share the work: U.S. Citizenship and Immigration Services (USCIS) reviews and approves petitions, the Department of Labor protects U.S. wages and job opportunities, and the Department of State issues the actual visa at embassies abroad.
What sponsorship looks like in practice depends on which visa the employer is filing for. The categories differ in who qualifies, how long the worker can stay, and how much the employer must prove about the U.S. labor market before filing.
Temporary Work Visas an Employer Can Sponsor
The most common employer-sponsored nonimmigrant categories are the H-1B, L-1, and O-1, and each answers a different hiring need.
The H-1B is the workhorse. It covers “specialty occupations” that require at least a bachelor’s degree, or its equivalent in work experience, in a directly related field. Engineers, software developers, financial analysts, and architects are typical examples. The employer must show the role itself demands that level of education, not just that the candidate happens to hold a degree. H-1B workers can stay for up to six years in most cases, granted in three-year increments. If a labor certification or immigrant petition has been pending for at least 365 days, the employer can request one-year extensions past six years. If the worker has an approved immigrant petition and is only waiting for a visa number, three-year extensions are possible.
The L-1 handles intracompany transfers. The L-1A covers managers and executives moving from a foreign office to a U.S. office within the same corporate family and allows a maximum stay of seven years. The L-1B covers employees with specialized knowledge of the company’s products or operations and caps at five years. In both cases, the worker must have been employed abroad by the company, or a parent, subsidiary, or affiliate, for at least one continuous year within the three years before applying.
The O-1 is reserved for individuals with extraordinary ability or achievement in science, arts, education, business, or athletics. The worker needs evidence of sustained national or international recognition, such as major awards, published research, or high salary relative to peers. There is no fixed cap on how long an O-1 holder can stay; extensions run in one-year increments as long as the qualifying work continues.
Congress caps new H-1B visas at 65,000 per fiscal year, with an extra 20,000 reserved for workers holding a master’s degree or higher from a U.S. institution. Because demand exceeds supply, USCIS runs an electronic lottery each spring to decide which petitions can be filed. Universities, nonprofit research organizations, and government research entities are exempt from the annual cap and can file H-1B petitions year-round.
Green Card Sponsorship: The Employment-Based Categories
When an employer wants to keep a foreign worker permanently, sponsorship shifts to the employment-based immigrant visa system. The categories are ranked by preference:
- EB-1 covers priority workers: individuals with extraordinary ability who can show sustained national or international acclaim, outstanding professors and researchers with at least three years of experience, and multinational executives or managers transferring from a foreign affiliate. EB-1 extraordinary ability applicants can self-petition without an employer.
- EB-2 covers advanced-degree professionals and workers with exceptional ability. It requires either an advanced degree beyond a bachelor’s (or a bachelor’s plus five years of progressive experience) or proof of exceptional ability in the sciences, arts, or business. A National Interest Waiver lets certain EB-2 applicants skip the labor certification step if the work benefits the United States broadly enough.
- EB-3 covers skilled workers (at least two years of training or experience), professionals with bachelor’s degrees, and “other workers” filling positions requiring less than two years of training. The “other workers” subcategory faces the longest wait times.
Each preference level receives roughly 28.6% of the annual worldwide allocation of employment-based immigrant visas, with unused visas cascading down from higher categories. Per-country limits create significant backlogs for applicants from high-demand countries such as India and China, where wait times can stretch well beyond a decade for EB-2 and EB-3.
Proving the Labor Market Test
Before an employer can sponsor most EB-2 and EB-3 green cards, it must prove to the Department of Labor that no qualified American worker is available and willing to fill the role. This is the PERM labor certification process, and it is often the longest and most procedurally demanding step in the entire sponsorship timeline.
The process begins with a prevailing wage determination. The employer submits the job duties, required experience, and work location to the Department of Labor’s National Prevailing Wage Center, which returns the minimum salary the employer must offer based on what workers in similar roles earn in that geographic area. If the employer cannot meet that wage floor, the sponsorship stalls before it begins.
Recruitment follows. For professional positions, the employer must place a job order with the state workforce agency for 30 days, run newspaper advertisements on two separate Sundays, and complete at least three additional recruitment steps drawn from a list that includes job fairs, the employer’s website, trade organizations, and campus placement offices. For non-professional positions, the job order and two Sunday newspaper ads are enough. All recruitment must happen within 30 to 180 days before filing.
Advertisements must name the employer, describe the job with enough specificity that applicants understand what they are applying for, and cannot list requirements stricter than what appears on the final application. If a qualified U.S. worker applies and the employer rejects them, the employer needs a legitimate, documented reason. The full recruitment record is submitted with ETA Form 9089, the Application for Permanent Employment Certification.
H-1B sponsorship carries a lighter labor market requirement. Instead of full PERM recruitment, the employer files a Labor Condition Application (ETA Form 9035E) electronically through the Department of Labor’s FLAG system. On the LCA, the employer attests that it will pay at least the prevailing wage or the actual wage paid to similarly employed workers at the company, whichever is higher, and that hiring the foreign worker will not undercut working conditions for existing staff.
Showing the Company Can Pay
A sponsorship petition is only as strong as the financials behind it. For immigrant petitions, USCIS looks at three primary measures to judge whether the employer can pay the offered wage from the priority date through the worker’s approval for permanent residency.
The simplest is current payment: if the company is already paying the worker at or above the offered wage, that alone can satisfy the requirement. Failing that, USCIS examines net income (total revenue minus all expenses) or net current assets (current assets minus current liabilities). Either figure must equal or exceed the offered wage. USCIS will not combine the two, because one measures a time period and the other measures a single point in time. Companies with 100 or more employees can submit a statement from a financial officer instead of full tax returns.
If none of the primary measures work, USCIS may look at gross revenue, total payroll, years in business, and growth trajectory. Relying on this totality-of-circumstances analysis is risky, and coming in with clean financials that satisfy one of the primary tests is far safer.
The worker’s side of the package centers on qualifications: educational transcripts and diplomas, a resume that maps prior experience to the role’s demands, copies of any required professional licenses, and a current passport. Foreign credentials often need evaluation by an accredited agency, and documents not in English require certified professional translation, which typically runs $20 to $70 per page.
Forms and Fees
Temporary worker petitions use Form I-129 (Petition for a Nonimmigrant Worker). Permanent residency petitions use Form I-140 (Immigrant Petition for Alien Workers). Both are filed with USCIS, and both require precise alignment between the job description on the form and the worker’s documented qualifications. A mismatch between what the form says the job requires and what the worker’s resume shows is one of the fastest routes to a denial.
H-1B filings carry a stack of fees beyond the base filing amount:
- ACWIA training fee: $750 for companies with 25 or fewer full-time employees, $1,500 for larger employers, and $0 for qualifying nonprofits. It funds training for American workers.
- Fraud prevention and detection fee: required on initial H-1B and L-1 petitions and when changing employers.
- Asylum program fee: $600 for employers with more than 25 full-time equivalent employees, $300 for smaller employers, and $0 for nonprofits.
- Public Law 114-113 fee: an additional $4,500 applies to companies with 50 or more U.S. employees where more than half hold H-1B or L-1 status.
USCIS updates its fee schedule periodically, and the current base filing fees for I-129 and I-140 are published on Form G-1055. All payments must be drawn on a U.S. financial institution and made payable to the U.S. Department of Homeland Security.
Employers who need a faster answer can file Form I-907 for premium processing. For most petition types, this guarantees USCIS will take action within 15 business days. Certain I-140 categories, including multinational executives and National Interest Waivers, get a 45-business-day window instead. “Action” does not necessarily mean approval; it can be a request for more evidence or a denial. It does eliminate the months-long wait that standard processing often involves.
How Long Review Takes
After USCIS receives a petition, it issues Form I-797C, the Notice of Action, which serves as the official receipt. The receipt number lets the employer track the case online.
Median processing times for fiscal year 2026 show the difference premium processing makes. Non-premium I-129 petitions took roughly 4.7 months; premium-filed I-129 cases resolved in about two weeks. For I-140 immigrant petitions, standard processing ran around 3.7 months, compared with about one month under premium processing.
During review, the adjudicating officer may issue a Request for Evidence (RFE) if the petition lacks enough detail to reach a decision. The RFE spells out what is missing and gives the employer a deadline, usually 84 calendar days for most petition types. A missed deadline can produce a denial, either on the existing record or as an abandonment. RFEs are common and not necessarily a bad sign, but a well-prepared initial filing avoids them and shaves months off the timeline.
Compliance After Approval
Approval starts the employer’s compliance obligations, it does not end them. USCIS and the Department of Labor both conduct oversight to confirm that employers are following through on what they filed.
Every employer must complete and retain Form I-9 (Employment Eligibility Verification) for each worker. The retention rule: keep the form for three years after the hire date or one year after employment ends, whichever is later.
H-1B employers face extra requirements. Within one business day of filing a Labor Condition Application, the employer must assemble a public access file at its principal place of business. That file must contain the certified LCA, documentation of the wage being paid, an explanation of the company’s pay system, proof of the prevailing wage source, and evidence that employees or their union representative were notified of the filing. It stays open for public inspection and must be retained for one year beyond the last date any H-1B worker is employed under that LCA.
USCIS also conducts unannounced compliance visits through its Fraud Detection and National Security Directorate. Officers may show up at the worksite to verify that the sponsored worker actually works there, performs the duties described in the petition, and earns the salary that was promised. They will interview company personnel and sometimes the worker directly. Refusing to cooperate with a site visit can lead to denial or revocation of H-1B petitions for workers at the inspected location.
If the Worker Wants to Change Employers
An H-1B worker who wants to switch jobs does not have to wait for a new employer’s petition to be approved before starting work. As soon as the new employer files a nonfrivolous I-129 petition with a valid Labor Condition Application, the worker can begin employment with the new company. This portability rule was established under the American Competitiveness in the Twenty-First Century Act.
Portability has limits. The worker must be in valid H-1B status when the new petition is filed, and the new petition must be filed before the current authorized stay expires. If the new petition is ultimately denied, the worker must stop working for the new employer.
When Employment Ends
If a sponsored worker is terminated or resigns before the visa period expires, the employer has obligations that go beyond ordinary employment law.
H-1B employers must pay the reasonable costs of return transportation to the worker’s last foreign residence if the worker is dismissed before the end of their authorized stay. This obligation exists regardless of the reason for termination. The employer should also notify USCIS that the employment relationship has ended so the agency can update the worker’s status records.
The worker gets a limited grace period. After employment ends, H-1B, L-1, O-1, and several other nonimmigrant classifications are eligible for up to 60 consecutive days to find a new employer to file a transfer petition, apply for a change of status, or prepare to leave the country. The worker cannot work during this period unless separately authorized, and the grace period ends immediately if they depart the United States. It is discretionary and available once per authorized petition validity period.
For employers partway through a green card sponsorship when the worker departs, a pending PERM application dies with the employment relationship. An approved I-140 may remain valid depending on the circumstances, but the worker would need a new employer to pick up the process, potentially starting certain steps over.