Prevailing Wage Explained

A thorough guide to the prevailing wage system — how the Department of Labor determines H1B wage requirements, what each wage level means, and how it affects workers and employers.

What Is a Prevailing Wage?

A prevailing wage is the average wage paid to similarly employed workers in a specific occupation in the geographic area where the work is to be performed. In the context of H1B visas and other employment-based immigration programs, the prevailing wage serves as a mandatory minimum that employers must pay foreign workers.

The prevailing wage requirement exists to protect both U.S. and foreign workers. For U.S. workers, it ensures that the employment of foreign nationals does not depress wages in the local labor market. For foreign workers, it establishes a floor that prevents exploitation and ensures fair compensation relative to what the occupation commands in the area.

Every H1B Labor Condition Application (LCA) requires the employer to attest that the offered wage meets or exceeds the prevailing wage. Similarly, PERM labor certification applications for employer-sponsored green cards require the employer to offer at least the prevailing wage as determined by a formal prevailing wage determination from the DOL.

Prevailing wages are a central element of H1B salary data. When you search our database, the salary figures you see on LCA filings are subject to these prevailing wage requirements. Understanding how these wages are calculated helps you interpret the data more accurately and make informed decisions about H1B employment.

How Prevailing Wages Are Calculated

The DOL's Office of Foreign Labor Certification (OFLC) is responsible for determining prevailing wages. The methodology relies primarily on wage data collected through the Occupational Employment and Wage Statistics (OEWS) survey conducted by the Bureau of Labor Statistics (BLS).

The OEWS Survey

The OEWS survey is a semiannual survey that produces employment and wage estimates for over 800 occupations at the national, state, and metropolitan area levels. The survey collects data from approximately 1.1 million establishments over a three-year cycle, making it one of the most comprehensive sources of wage data in the United States.

For prevailing wage purposes, the OFLC uses OEWS wage percentile data to establish the four wage levels. The survey data is organized by Standard Occupational Classification (SOC) code, which classifies workers into occupational categories based on the type of work performed. Each H1B position is assigned an SOC code that determines which occupation's wage data is used.

The Percentile Method

The OFLC converts OEWS wage data into four wage levels using specific percentile cutpoints. This method replaced the earlier "skill-based" calculation and provides a more standardized approach to setting prevailing wages. The percentiles correspond to different levels of experience and responsibility within each occupation.

The wage levels are determined by calculating the difference between the median (50th percentile) and the lowest reported wage for the occupation in the area, then dividing this range into intervals. The result is four distinct wage tiers that reflect a progression from entry-level to expert-level compensation.

Geographic Specificity

Prevailing wages are calculated for specific geographic areas, typically Metropolitan Statistical Areas (MSAs) or non-metropolitan areas. This means the prevailing wage for a software developer in San Jose, California, will be substantially different from the prevailing wage for the same occupation in a rural area. This geographic specificity ensures that prevailing wages reflect actual local labor market conditions rather than national averages.

The Four Wage Levels in Detail

The DOL's four-tier wage level system is designed to account for the varying skill, education, and experience levels within each occupation. Understanding these levels is essential for both employers setting H1B salaries and workers evaluating job offers. For broader salary analysis, see our H1B salary guide.

Level 1: Entry Level (17th Percentile)

Level 1 corresponds to the 17th percentile of wages for the occupation in the geographic area. This level is appropriate for positions that require:

A basic understanding of the occupation.
Performance of routine tasks under close supervision.
Limited exercise of independent judgment.
Entry-level skills and knowledge, typically gained through education alone without significant professional experience.

Level 1 positions are generally for workers who are new to the occupation in the United States. A recently graduated student starting their first job in the field would typically be classified at Level 1. However, the widespread use of Level 1 wages has been a point of controversy, with critics arguing that some employers classify experienced workers at Level 1 to minimize labor costs.

Level 2: Qualified (34th Percentile)

Level 2 corresponds to the 34th percentile of wages. Positions at this level typically require:

Sufficient knowledge to perform moderately complex tasks.
Limited supervision for routine work, with guidance needed for more complex assignments.
Some professional experience in the occupation beyond entry level.
The ability to apply standard procedures and techniques with moderate proficiency.

Level 2 is the most commonly used wage level in H1B filings across many occupations. It represents the transition from entry-level to competent practitioner and is appropriate for workers with a few years of professional experience.

Level 3: Experienced (50th Percentile)

Level 3 corresponds to the 50th percentile — the median wage for the occupation. This level is designed for positions requiring:

A comprehensive understanding of the occupation's concepts, practices, and procedures.
Independent performance of most work with limited guidance.
The ability to handle complex tasks and to exercise judgment and initiative.
Possible supervision or coordination of the work of others.

Level 3 workers are experienced professionals who have developed proficiency across all aspects of their occupation. They can work independently and may take on leadership responsibilities within their area of expertise.

Level 4: Fully Competent / Expert (67th Percentile)

Level 4 corresponds to the 67th percentile of wages. This is the highest prevailing wage tier and is reserved for positions requiring:

A high level of expertise and mastery of the occupation.
Independent performance of the most advanced and complex duties.
Significant exercise of judgment, leadership, and creative problem-solving.
Responsibility for planning, directing, or managing work at a senior level.
Deep specialization or broad authority within the field.

Level 4 positions are for senior professionals, technical leaders, and recognized experts. Employers filing at Level 4 are offering compensation that exceeds what the majority of workers in the same occupation and area earn, reflecting the premium placed on advanced expertise.

Prevailing Wage vs. Actual Wage

The H1B program requires employers to pay the higher of two wage standards: the prevailing wage and the actual wage. Understanding the distinction between these two standards is important for both compliance and salary expectations.

The Prevailing Wage

As described above, the prevailing wage is determined by the DOL based on the occupation, geographic area, and wage level. It represents what the external labor market pays for the same type of work in the same area. The prevailing wage is a fixed benchmark that does not change based on the employer's internal pay practices.

The Actual Wage

The actual wage is the wage rate paid by the employer to other employees with similar experience and qualifications for the same or similar position at the same work location. In other words, it is the employer's internal pay rate for comparable positions. If the employer does not have similarly employed workers, the actual wage defaults to the wage offered to the H1B worker.

The "Higher Of" Rule

The employer must pay the H1B worker the higher of the prevailing wage or the actual wage. This means:

If the prevailing wage for a position is $90,000 but the employer pays its U.S. workers $100,000 for the same role, the H1B worker must be paid at least $100,000.
If the prevailing wage is $90,000 and the employer's actual wage for similar positions is $85,000, the H1B worker must be paid at least $90,000 (the prevailing wage prevails).

This dual standard ensures that H1B workers are not paid less than either the market rate or the employer's own rate for comparable positions.

How to Look Up Prevailing Wages

Both employers and workers can access prevailing wage data through several official sources.

OFLC Online Wage Library

The primary resource for looking up prevailing wages is the OFLC Online Wage Library, maintained by the Department of Labor. This tool allows users to search for prevailing wages by SOC code and geographic area. The wage library provides prevailing wages at all four levels for each occupation-area combination.

To use the wage library:

Navigate to the OFLC Foreign Labor Certification Data Center website.
Select the Online Wage Library tool.
Search by occupation (SOC code or job title) and geographic area (state or metropolitan area).
Review the wages shown for each of the four wage levels.

Formal Prevailing Wage Determination (PWD)

For PERM labor certification applications, employers are required to obtain a formal Prevailing Wage Determination from the National Prevailing Wage Center (NPWC). This formal PWD is based on the same OEWS data but is issued as an official determination with a validity period. The PWD process takes several months and involves the NPWC reviewing the specific job duties and requirements to assign the appropriate SOC code and wage level.

Private Wage Surveys

In some cases, employers may use a private wage survey as an alternative to OEWS-based prevailing wages, provided the survey meets DOL standards for methodology, sample size, and geographic relevance. This option is rarely used but can be beneficial in niche occupations where the OEWS data may not accurately reflect market conditions.

Using Our Database

Our H1B database provides actual salary data from LCA filings, which allows you to see what employers are actually paying for specific occupations in specific locations. While this is not a prevailing wage determination tool, it provides valuable context by showing real-world H1B compensation alongside prevailing wage requirements. You can view salary distributions by occupation, employer, and geographic area to understand how H1B wages relate to prevailing wage levels.

Impact on H1B Workers

The prevailing wage system has significant practical implications for H1B workers, affecting their salary expectations, negotiation leverage, and career decisions.

Salary Floors, Not Ceilings

The most important concept for H1B workers to understand is that the prevailing wage is a floor — the minimum an employer is required to pay. It is not a ceiling or a target. Many employers, particularly major technology companies and large corporations, pay well above the prevailing wage. When evaluating a job offer, compare the offered salary not just to the prevailing wage but to market rates for your skill set and experience level.

Our salary guide provides detailed analysis of how H1B salaries compare to market rates, and you can search our database to see what specific employers are paying for your occupation.

Wage Level and Career Progression

Your assigned wage level should reflect your actual experience and skill level. As you gain experience, your wage level should increase from Level 1 to Level 2 and beyond. If you are an experienced professional being classified at Level 1, this may indicate that you are being undervalued. Understanding your appropriate wage level gives you leverage in salary negotiations and helps ensure you are being compensated fairly.

Geographic Considerations

Because prevailing wages vary by location, a job offer in a high-cost city will have a higher prevailing wage than the same role in a lower-cost area. However, higher prevailing wages in expensive areas do not necessarily translate to greater purchasing power. Workers should consider the cost of living in their work location when evaluating H1B job offers.

Job Mobility

When changing employers through an H1B transfer, the new employer must file a new LCA with a prevailing wage determination for the new work location and position. If you are moving to a higher-cost area or a more senior position, the prevailing wage floor will be higher, which can work in your favor during salary negotiations. The top H1B sponsors list is a good starting point for identifying employers that actively hire H1B workers and tend to offer competitive salaries.

Recent Changes and Trends

The prevailing wage system has undergone scrutiny and proposed changes in recent years, reflecting broader debates about the H1B program's impact on U.S. wages.

Attempted Wage Increases (2020-2021)

In 2020, the DOL published an interim final rule that would have significantly increased prevailing wages across all four levels. The proposed changes would have raised Level 1 from the 17th percentile to the 45th percentile, Level 2 to the 62nd percentile, Level 3 to the 78th percentile, and Level 4 to the 95th percentile. This rule was ultimately vacated by federal courts on procedural grounds, and the percentile-based system reverted to the pre-existing levels.

The Ongoing Debate

The appropriate level of prevailing wages remains a subject of active policy debate. Proponents of higher prevailing wages argue that current levels, particularly Level 1 at the 17th percentile, allow employers to pay H1B workers significantly below market rates, which can suppress wages for U.S. workers. Opponents argue that higher prevailing wages would make it prohibitively expensive for many employers to sponsor H1B workers, particularly smaller companies and those in lower-cost regions, without necessarily benefiting workers.

SOC Code Updates

The transition to the 2018 Standard Occupational Classification (SOC) system introduced new occupation codes and reclassified some existing occupations. These changes affected prevailing wage calculations because wages are tied to specific SOC codes. Employers and workers should ensure they are using the correct SOC code for their position, as an incorrect code can lead to an inappropriately high or low prevailing wage.

OEWS Survey Updates

The BLS updates OEWS wage data annually, meaning prevailing wages change each year to reflect current labor market conditions. In periods of significant wage growth, prevailing wages increase accordingly, raising the salary floor for new H1B filings. Employers filing LCAs or PERM applications should use the most current wage data available, as outdated data can lead to compliance issues.

Increased Enforcement

The DOL's Wage and Hour Division has increased its enforcement of H1B prevailing wage requirements in recent years. Employers found to be paying below the required prevailing wage face penalties including back pay for affected workers, civil monetary penalties, and potential debarment from the H1B program. This increased enforcement underscores the importance of accurate prevailing wage determinations and ongoing compliance. For more on the H1B approval and compliance process, see our dedicated guide.

Related Resources

Learn more about H1B wages, the visa process, and employer data with our other guides:

H1B Salary Guide — Comprehensive analysis of H1B salaries, wage level distributions, and industry trends.
Complete H1B Visa Guide — Everything about H1B eligibility, the application process, cap, lottery, and timeline.
H1B Approval Process — From LCA filing to USCIS petition adjudication, including RFEs and approval rates.
Green Card (PERM) Guide — Employer-sponsored permanent residency through PERM labor certification.
Top H1B Sponsors — Browse major H1B employers and their salary and sponsorship data.
Search H1B Data — Look up any employer, occupation, or location in our database.