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How to report fringe benefits on certified payroll

Fringe benefits are where most WH-347 errors happen. The form asks for a dollar amount per hour, but the underlying obligation is more nuanced. This page explains how to get it right.

Last reviewed: October 2026, against 29 CFR 5.5(a)(1)(i).

What "fringe benefits" means on a Davis-Bacon job

Under the Davis-Bacon Act, the wage determination for each classification sets two numbers: a base cash wage and a fringe benefit rate. You can satisfy the total obligation by paying the base wage in cash and the fringe in one of two ways — the wage determination itself is the rule, and 29 CFR 5.5(a)(1)(i) is where the fringe-as-wages treatment comes from:

You can also mix the two. For example, you might pay $2/hour in cash and $3/hour into a health plan. The total must meet or exceed the fringe rate in the wage determination.

Columns 6B and 6C on the 2025 form

The January 2025 revision split the old single fringe column into two:

Both columns ask for an hourly rate, not a weekly total. If the worker's fringe obligation is $5.00 per hour and you pay all of it in cash, enter 5.00 in Column 6B and leave 6C blank. If you split it, enter the cash portion in 6B and the plan portion in 6C.

The per-hour math

The fringe amount on the form is always an hourly rate. To calculate it from a weekly contribution:

Hourly fringe = Weekly contribution ÷ Total hours worked

If a worker earns $25/hour base wage and the wage determination requires $5/hour in fringe benefits, and you contribute $200/week into a health plan for 40 hours worked:

In this case, you enter 5.00 in Column 6C and leave 6B blank.

Worked example: mixed cash and plan

Worker: Maria Delgado. Classification: Carpenter. Base wage: $28.00/hour. Fringe rate: $6.00/hour. Hours worked: 40.

You pay $3.00/hour in cash in lieu and contribute $120/week to a pension plan.

This is the exact row from the Delgado sample that ships with PayrollWarden's free tool.

Why overtime premium applies to the base cash rate only

This is the most common mistake on certified payroll. The overtime premium (the "half" in time-and-a-half) applies only to the base cash wage, not to the fringe benefit portion.

If a worker's base rate is $28.00/hour and the fringe rate is $6.00/hour, the overtime rate is:

The fringe benefit is still paid at the straight-time rate ($6.00/hour) for the overtime hours. The total compensation for an overtime hour is $42.00 + $6.00 = $48.00.

If you calculate overtime on the total wage ($28.00 + $6.00 = $34.00 base), you will overpay the premium and the form will not match the wage determination.

What the form does not ask for

The WH-347 does not ask you to itemize which benefits you provide. It only asks for the dollar amount per hour in Columns 6B and 6C. However, you must keep records of the underlying contributions in case of a DOL audit. The form is a summary, not a substitute for your books.

What to do next

If you are unsure whether your fringe calculation is correct, use the free WH-347 filler. It calculates Columns 6B, 6C, 7A, and 7B from your inputs and flags common errors before you download.

Calculate fringe benefits free

The boxes themselves: field-by-field WH-347 guide. What the January 2025 revision changed about these columns: 2025 form changes.

Sources

Frequently asked questions

Can I pay all fringe benefits as cash?

Yes. Paying the full fringe rate as cash in lieu of benefits satisfies the Davis-Bacon obligation. Enter the full hourly amount in Column 6B and leave 6C blank.

Do I have to use a bona fide plan?

No. Cash in lieu is allowed. But if you do use a plan, the contributions must be to a bona fide plan (health insurance, pension, etc.) and you must keep records of the contributions.

Does overtime apply to fringe benefits?

No. The overtime premium applies only to the base cash wage. Fringe benefits are paid at the straight-time rate for all hours worked, including overtime hours.

What if my fringe contribution exceeds the required rate?

You only need to report up to the required rate on the form. Excess contributions are not required to be reported, but you should keep records of them.