How is fringe-benefit credit calculated on prevailing wage?

By annualization: annual bona fide benefit cost divided by the worker's total annual hours on all work - public and private - gives the creditable hourly fringe. Any gap versus the wage determination's fringe rate must be paid in cash on covered hours (29 CFR §§5.25–5.31).

Can I pay the fringe benefit as cash instead?

Yes. The fringe obligation may be met with bona fide benefits, cash added to the hourly wage, or a combination - the total must at least equal the determination's base-plus-fringe rate.

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Fringe-benefit annualization calculator

What your benefits are worth per hour - and the cash top-up you owe if they fall short

Fringe-benefit credit on prevailing-wage work is computed by annualization: divide what you actually pay for a worker's bona fide benefits per year by their total hours worked that year - all projects, public and private - to get the creditable hourly amount. If that credit is less than the determination's fringe rate, the difference must be paid as cash on covered hours (29 CFR §§5.25–5.31).

Annual benefit cost for the worker ($) Total hours worked/year (all jobs)

Required fringe from the WD ($/hr)

Creditable fringe: $6.00/hr

Worked example

An employer pays $12,000/year for a worker's health insurance and retirement. The worker logs 2,000 hours across all jobs. The determination requires $14.50/hour fringe:

Creditable fringe = $12,000 ÷ 2,000 hours = $6.00/hour - not $12,000 divided by only the prevailing-wage hours.
Shortfall = $14.50 − $6.00 = $8.50/hour, owed as cash on every covered hour.

Why annualization trips contractors up

Counting benefit costs against only the government-project hours overstates the credit - it is the most common fringe audit finding. Only bona fide benefit plans count (health, pension, life insurance, apprenticeship funds - not travel pay or legally required costs like workers' comp). Defined-contribution pension plans with immediate 100% vesting may in some cases take credit as contributions are made without annualizing - that exception requires meeting DOL's conditions; when in doubt, annualize.

Get the required fringe from your wage determination; check total-rate and overtime math in the prevailing-wage calculator.