Compliance
7 H1B & LCA Compliance Mistakes That Cost C2C Firms
The violations that trigger back-wage liability, penalties, and in serious cases debarment — and how corp-to-corp staffing firms quietly fall into each one.
May 15, 2026 · 12 min read · C2C Central
The most expensive H1B and LCA compliance mistakes for C2C staffing firms are paying less than the required wage during bench time, basing the prevailing wage on the wrong location, and filing on the retired I-129 form. Each one is avoidable, each one is common, and each one can produce Department of Labor back-wage orders, civil penalties, and — in serious or willful cases — debarment from the H1B program.
Key takeaways
- H1B workers on the bench (nonproductive status) must still be paid the LCA required wage.
- Prevailing wage is set by the end-client work location, not your firm's address.
- Form I-129 was overhauled effective January 17, 2025 — the old edition is rejected.
- OPT, STEM-OPT, EAD, and TN all have hard expiry dates that must be tracked.
- A maintained public access file is required for every certified LCA.
This article is general information for staffing operators, not legal advice. Immigration and wage law is fact-specific — confirm your firm's obligations with qualified immigration and employment counsel.
1. Benching an H1B consultant without pay
An H1B worker in nonproductive status — on the bench, between projects, or waiting on a placement — must still be paid the required wage on the labor condition application. Failing to pay during nonproductive time is the most common and most expensive violation. The Department of Labor can order back wages for the entire unpaid period, plus civil penalties.
2. Using the wrong prevailing-wage location
The LCA prevailing wage must be based on the area of intended employment — the end-client work location where the consultant actually performs the work — not your firm's headquarters. C2C arrangements place consultants at client sites across the country, so a single boilerplate wage tied to your office address will understate the required wage and create back-wage exposure.
3. Filing on the outdated I-129 form
USCIS overhauled Form I-129 effective January 17, 2025. Petitions submitted on the old edition are rejected — there is no grace period for using a prior version once an edition is retired. A rejected I-129 means a lost filing window, a delayed start, and sometimes a lost placement.
4. Missing EAD, OPT, STEM-OPT, or TN expiry dates
Work authorization is not permanent. OPT, STEM-OPT, EAD cards, and TN status all carry hard expiry dates, and a consultant whose authorization lapses cannot legally work. Tracking these dates in someone's memory or a spreadsheet nobody checks is how firms suddenly lose a billing consultant — and expose themselves to unauthorized-employment liability.
5. Not maintaining the public access file
Every certified LCA requires a public access file containing the LCA, the wage determination, and documentation of the wage rate, available within one working day of filing. Missing or incomplete public access files are a frequent finding in DOL investigations and carry their own penalties, independent of whether wages were actually underpaid.
6. Treating the LCA as a one-time filing
An LCA covers a specific job, wage, and worksite. When a consultant moves to a new client location outside the original area of intended employment, a new or amended LCA — and often an amended petition — may be required. Moving a consultant to a new site without revisiting the LCA is a quiet but serious compliance gap.
7. No system of record for any of the above
Every prior mistake on this list shares one root cause: compliance data living in scattered spreadsheets, email threads, and individual memory. Without a single system tracking each consultant's visa type, authorization expiry, LCA wage, worksite, and filing edition, a violation is not a risk — it is a matter of time.
Why these keep happening
None of these mistakes come from bad intent. They come from running immigration compliance on the same spreadsheets and chat threads a firm uses for everything else. Wages get set once and forgotten, worksites change without anyone revisiting the LCA, a form edition retires unnoticed, and an EAD expiry slips past because no one owned the date. The fix is structural: a system that tracks each consultant's visa type, authorization expiry, LCA wage, and worksite, and that alerts you before a deadline becomes a violation.