What You Can Actually Deduct From a Davis-Bacon Paycheck
Your payroll came back rejected. The wages are right. The classifications are right. The hours match the timecards. The problem is a $40 line in the "Other deductions" column that says loan.
You know what it is. It's the advance you gave a guy in March when his truck died. What you may not know is that it's now a federal compliance question, and the answer determines whether you owe that $40 back to him, on top of what you already paid him.
Copeland isn't about briefcases and unmarked bills
Most contractors think of the Copeland Anti-Kickback Act, if they think of it at all, as a law about bribery.
It isn't. Copeland is about deductions, and it applies to every federal and federally assisted construction contract you touch. The law prohibits a contractor from inducing an employee to give up any part of the compensation they're entitled to. Penalties run to fines, contract termination, debarment, and imprisonment for up to five years.
Here's the connection people miss: a deduction is, mechanically, the employer taking part of the employee's pay. Most deductions are perfectly legitimate. But a broad category of unallowable deductions are exactly the ones that move money from the worker back to the employer, which is what a kickback looks like on a pay stub.
Which is why what did you deduct, and can you prove the employee agreed to it is a standard audit question.
The three buckets
Bucket 1: Automatically allowable
These require no special approval. The full list lives at 29 CFR 3.5, and it covers the usual suspects:
Federal, state, and local taxes
Court-ordered deductions such as garnishments and child support
The employee's portion of bona fide benefit plans
Union initiation fees and membership dues (not fines) under a collective bargaining agreement
Repayment of a bona fide advance of wages made without discount or interest
Credit union payments
Voluntary charitable contributio
The reasonable cost of board, lodging, or other facilities, as defined under FLSA section 3(m)
Safety equipment of nominal value (safety shoes, glasses, gloves, hard hats) bought by the worker as their own personal property, where you aren't required by law to furnish it, and with the worker's written consent or under a CBA
One note on that fifth bullet. If you make a clerical error and overpay someone, the recovery rides on it: you can take the money back on a later payroll as a bona fide prepayment of wages. The prepayment has to have been made without discount or interest, the employee has to acknowledge the correction and the repayment schedule in writing, it has to be genuinely infrequent and inadvertent, and a short narrative explaining it goes with that payroll. It's a fix for mistakes, not a mechanism.
Bucket 2: Allowable only with the Secretary of Labor's approval
29 CFR 3.6 opens a door for deductions outside the automatic list, but all of the following must be true:
You and any affiliated person make no profit or benefit, direct or indirect, from the deduction.
The deduction isn't otherwise prohibited by law.
It serves the convenience and interest of the employee.
t's either voluntarily consented to in writing, in advance, or required by a collective bargaining agreement.
The process itself is straightforward: a letter to the Wage and Hour Division at dbadeductions@dol.gov, spelling out how your request satisfies each element of 3.6. Don't treat the approval as permanent, though. It's granted on the facts you submitted, so if the deduction's amount, purpose, or terms change, you need a new request. Best practice is to re-verify every approval on file annually.
Bucket 3: Typically unallowed
Tools and uniforms are the classic. If you buy tools or uniforms and deduct the cost from wages, DOL's position is that the deduction isn't allowed without prior approval.
Most contractors push back on this, and the argument is always the same: he's the one using the tools, so he's the one buying them. It doesn't work, because DOL isn't asking who holds the item. It's asking who primarily benefits. If the tool is required to perform the work, the benefit runs to the employer. They needed that tool to do the job YOU bid on, regardless of whose hands the tool ends up in. Same with a uniform that the company requires.
There's a narrow exception nearby that causes a lot of confusion. Safety equipment of nominal value, the boots and glasses and gloves and hard hat back in Bucket 1, can be deducted with no approval at all, as long as the worker buys it as their own personal property, you aren't required by law to furnish it, and you don't charge above your actual cost. That provision covers a specific category of inexpensive safety gear. It is not a general rule about personal use, and tools don't inherit it. Deduct for tools, even tools an employee is happy to keep, and you need approval from the Wage and Hour Division first.
Other frequent offenders: administrative fees for a purchase card or payroll paycard, parking and traffic violations in a company vehicle, and damage to equipment or property.
None of these are automatically dead. They're just not automatically alive, and taking them without authorization, or letting them push a worker below the posted prevailing wage, creates a real problem.
The "Other deductions" column is where it all surfaces
Every deduction outside the standard boxes lands in the "Other" column on the WH-347. Three proactive steps can keep that column from getting your payroll kicked back.
Itemize it. Break out each deduction by type, with the dollar amount per type, per employee, per payroll. What gets rejected is copy-paste boilerplate: "all other deductions may include union dues, loans, advances…" pasted onto every payroll regardless of what actually came out. The updated WH-347 requires you to specify all "other" deductions, and a blanket description specifies nothing.
Get the authorization before the money comes out, not after. A signature collected once an auditor starts asking is worth very little. Written consent in advance is the whole ballgame on anything outside Bucket 1.
Keep it where you can find it. Whatever system you use, you need to be able to produce the backup for a specific employee, a specific deduction, and a specific week, quickly. A contractor with undocumented deductions isn't Copeland-compliant, however good their wage math is.
What to have on file before anyone asks
A signed employee authorization form works for any allowable deduction, as long as it includes employee name, employer name, type of deduction, frequency, amount, and the employee's signature.
Beyond that, it varies by deduction type:
Deduction | What to have |
Union dues, check-offs, assessments | Copy of the CBA, or a dispatch slip showing the deductions |
Employee benefit and 401(k) contributions | Enrollment paperwork, or the employee handbook if it states amount and frequency per plan |
Child support and garnishments | A memo with employee name, nature of the deduction, amount and frequency, and a statement that the original order is on file |
Cash advance repayment | Signed agreement showing the original advance amount, payment schedule, and start and end dates |
Overpayment repayment | Notice to the employee acknowledged by signature, with a repayment schedule |
Employee purchases (gas, other) | Receipts plus a signed agreement, and SOL approval unless the item is nominal-value safety equipment |
Tools and uniforms | Receipts plus a signed agreement, and SOL approval. See Bucket 3. |
Company vehicle use, fees, violations | Company policy plus a signed agreement, and SOL approval |
Two practical notes: For garnishments and child support orders, don't send the court order with your payroll. Those orders contain personal information about the employee. Your own memo is the right document, attached to the first payroll in which the amount is withheld, and no further documentation is needed for that same deduction on later payrolls. And copies are fine. The certified payroll itself has to be an original signed record, but you can keep original authorizations in your file and submit copies.
High risk vs. low risk: it's about whether proof exists
Not every deduction gets the same scrutiny, and the sorting principle is simpler than it looks. A deduction is low risk when documentation of the employee's consent is likely to exist in a highly auditable form.
A 401(k) is the clean example. Enrollment usually runs through a third-party administrator, so the paperwork lives in two places, with you and with the administrator. It's independently verifiable, and it's hard to fake after the fact.
Low risk: union dues and assessments, employee benefit and 401(k) contributions, 401(k) loan repayments, child support and garnishments.
High risk is the mirror image: consent probably exists only as a conversation. A handshake deal for a cash advance is the archetype. Everyone remembers agreeing to it. Nobody wrote it down. And an auditor can't audit a memory.
High risk: cash advance repayments, overpayment recovery, employee purchases, personal use of a company vehicle, fees and violations. Document all of them, every time.
Our most frequent finding is exactly that handshake: employee "loans" never agreed to in writing in advance, with "loan" used as a catch-all label for payroll fees, paycard authorization fees, traffic violations, cell phone allowances, and per diem.
And when the authorization doesn't exist?
The rule is simple, and it's the reason all of this matters:
If the employee didn't authorize the deduction, or if a deduction outside the allowable list drops their pay below the posted prevailing wage, you refund it.
Which means an undocumented deduction isn't a paperwork problem you can clean up with a memo. It's a wage restitution problem, multiplied by every employee and every week it recurred.
If you're the one reviewing these
Everything above is what you're checking for, from the other side of the desk. Three things make that review survivable at scale. Force the itemization at entry rather than chasing it later: most electronic payroll systems can require a note on any "Other" deduction, and turning that on converts a monthly cleanup into a non-event. Sort incoming deductions by the risk test above, so your document collection effort goes where consent is least likely to exist on paper. And track every outstanding item to resolution, by employer, employee, and deduction type, so you know what's been received, accepted, or rejected. At closeout, every deduction should be matched to a document and every employee accounted for. The alternative is discovering in month eighteen that one sub has been deducting paycard fees since mobilization.
The bottom line
The deductions on a certified payroll are small numbers. That's exactly why they get taken casually. Nobody thinks a $40 line is a federal matter.
But a deduction you can't document isn't a bookkeeping discrepancy you clean up with a note. It's money you have to give back, to every employee it touched, for every week it happened. A $15 weekly paycard fee across twelve workers for a nine-month job is around $7,000 in restitution, for a fee nobody ever objected to.
The fix costs almost nothing when you do it up front: get the signature before the money comes out, describe it accurately on the payroll, and keep the paper where you can reach it.
At Naylor Construction Consulting, we don't just tell subs their deductions are wrong and reject the payroll. We sit down with them, at every tier, explain what Copeland requires, hand them an authorization form that actually works, and walk them through getting current. That's been the model for eight years, with contractors like Clark, Atkinson, and Hoffman.
If your "Other" column is full of things nobody can explain, let's talk.
This article is general information about federal prevailing wage compliance, not legal advice. Deduction questions can turn on specific facts and state law. For yours, loop in your compliance team or attorney.
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