The SCA Fringe Benefit Mistakes That Most Often Trigger DOL Audits

More than 80% of Service Contract Act investigations result in a finding of non-compliance, according to a Government Accountability Office analysis of DOL enforcement data. The most common cause isn't a failure to pay the right wage rate. It's a misunderstanding of how fringe benefits work — specifically health and welfare.

In July 2025, the Wage and Hour Division issued All Agency Memorandum 250, raising the standard H&W fringe benefit rate from $5.36 per hour to $5.55 per hour for most SCA-covered contracts — and $5.09 per hour where Executive Order 13706 sick leave obligations apply. Contractors working off older wage determinations may not realize they're already behind.

How the H&W Obligation Actually Works

The SCA requires contractors to provide fringe benefits — primarily health and welfare — at rates specified in the applicable wage determination. What the regulation does not require is that you deliver those benefits in any particular form. Contractors can satisfy the H&W obligation through a bona fide health insurance plan, contributions to a pension or other qualifying benefit plan, or by paying the equivalent rate directly as a cash fringe.

That flexibility is where most compliance problems originate.

Mistake #1: Assuming your health plan fully satisfies the obligation

A contractor whose employer-sponsored health insurance costs $4.80 per employee per hour may believe the H&W obligation is satisfied. But if the current rate is $5.55, there's a $0.75 gap. That gap must be made up — either through additional benefits or a cash supplement. Failing to account for it means underpaying fringe benefits on every hour worked by every covered employee.

Mistake #2: Not annualizing correctly

When a contractor uses a fixed-cost benefit (such as a monthly insurance premium) to satisfy an hourly H&W obligation, the benefit cost must be annualized and converted to an hourly equivalent. The annualization formula divides total annual benefit cost by 2,080 hours. If employees routinely work overtime — or if some work part time — the hourly equivalent shifts, and the calculation needs to reflect actual hours for each employee, not a blanket assumption.

Mistake #3: Treating the H&W rate as static

H&W rates in wage determinations are periodically revised, and those revisions flow to individual contracts when a contracting officer incorporates an updated wage determination — typically at option year exercise, contract renewal, or for multi-year funded contracts, at least every two years. Contractors who haven't updated their fringe benefit calculations since contract award may be operating under an outdated rate without realizing it.

Mistake #4: Cash fringe isn't properly documented

Some contractors pay the H&W rate as a cash supplement rather than routing it through a benefits plan. This is permissible, but it creates a paper trail obligation. The cash fringe must appear on employee pay stubs or wage statements and must be clearly distinguished from the basic wage rate. WHD investigators look specifically for this documentation during audits, and its absence can turn a compliant practice into an apparent violation.

Mistake #5: Excluding part-time employees from H&W coverage

The SCA's H&W obligation attaches to every covered hour worked — there is no part-time exemption. Contractors who exclude part-time employees from employer-sponsored benefits (because they fall below an internal eligibility threshold, or because no one thought to extend SCA obligations to them) must still satisfy the H&W rate for those employees' hours, either through a qualifying benefit or a cash fringe equivalent. A part-time employee with no benefits and no cash fringe represents the same per-hour violation as a full-time employee in the same situation. If anything, the math works in the employer's favor with part-timers: a flat monthly premium divided across fewer annual hours yields a higher hourly equivalent, making it easier to satisfy the H&W rate — but only if the employee is actually enrolled in the benefit.

What Triggers an Audit

DOL investigations under the SCA are initiated in three primary ways: a worker complaint, a directed investigation by WHD, or a compliance review triggered by a contract award. Directed investigations have historically focused on contractors in industries with historically high violation rates — building services, food services, and technical services. But the DOL's enforcement posture has fluctuated across administrations, and there's no reliable way to assess your risk based on industry alone.

Contractor debarment is among the most serious consequences of sustained SCA non-compliance. Under the Act, contractors and their responsible officers can be placed on the Comptroller General's ineligibility list for up to three years, effectively barring them from federal contract work during that period.

What to Do Now

The rate change that took effect in July 2025 is a natural inflection point to audit your fringe benefit structure. The key questions are: What is the current H&W rate on each of your active wage determinations? How are you satisfying that obligation for each employee class? And can you document that calculation for a WHD investigator who shows up without notice?

If the answer to any of those questions is uncertain, the fringe benefit calculation should be reviewed before the next option year — not after.