Quick answer: Buyers of a staffing company test whether gross profit survives the full cost of employing workers and whether the firm owes anything for past payroll. They tie payroll registers to tax filings, review worker classification, rebuild gross profit by client and recruiter, and test the funding line, workers’ compensation and add-backs. Past liabilities cut price dollar for dollar. Corrected run-rate costs lower adjusted EBITDA, which the multiple scales up.
Key points
- Payroll tax, wage, insurance and benefit liabilities sit in the staffing entity and follow it in a stock purchase.
- Buyers rebuild gross profit worker by worker at full labor burden, since an averaged burden rate can hide thin margins.
- Past exposures are deducted from price dollar for dollar, while corrected run-rate costs lower adjusted EBITDA and are scaled up by the multiple.
- The funding line is usually repaid at closing, so the buyer needs its own funding ready for the first payroll.
What a buyer decides in staffing diligence
A buyer of a staffing firm settles two questions in a fixed order. The first is what the firm already owes for the people it has employed, meaning payroll taxes, wages, insurance and benefits. The second is how much gross profit remains after the fully loaded cost of those people, and whether it repeats. The first sets deductions from price. The second sets adjusted EBITDA.
A temporary staffing firm employs workers who sit at its clients’ sites, so an employer’s obligations belong to the entity and travel with it in a stock purchase. Payroll records, lender agreements and workers’ compensation history are requested first. Multiples and value drivers sit in the valuation page for staffing and recruiting firms. The directory of diligence by industry compares other businesses.
Payroll tax and wage testing
The buyer’s accountants tie the payroll registers, the general ledger and the payroll tax filings to one another. A gap points to tax withheld but not paid, paid late or never reported.
Workers sit at client sites that may be in several states, so the accountants compare timesheet locations with the states where the firm registered and filed. If an outside payroll provider files for the firm, the buyer asks who the filer of record is and requests proof of deposits. Wage testing recalculates hours, overtime and pay for sampled worker-weeks against offer letters and rate sheets. Past tax, penalties and wage shortfalls become debt-like items, while a corrected process raises ongoing cost and lowers adjusted EBITDA.
Classifying placed workers and recruiters
Classification is tested for placed workers, recruiters and sales staff treated as contractors, and for workers supplied through subcontractors. The IRS looks at evidence of behavioral control, financial control and the type of relationship, and weighs all of it together, so no single factor decides.[1]
Employment counsel for the buyer reads the contractor agreements and asks how the work is directed and paid, whether the worker serves other customers and how closely the client supervises. Whether other agencies or states would agree is a question for that counsel. A clean file leaves price alone, a mixed one draws a special indemnity or escrow, and a weak one draws a deduction for back tax exposure and sometimes a requirement to convert the workers before closing. The wider review is covered in HR and employment diligence.
Gross profit by client, program and recruiter
For each worker-week, buyers rebuild gross profit from the bill rate on the invoice, the pay rate in the payroll register and the burden, meaning employer payroll taxes, workers’ compensation, benefits and client program fees. Summed by client, the rebuild can show accounts earning less than reported, because a reported margin may rest on one average burden applied to job classes that cost very different amounts to employ and insure.
Where a client buys through a vendor management program, the buyer checks the fee taken from each invoice, any cap on bill rates, whether the firm supplies the client directly or through another staffing company, whether the contract survives a change of control and when suppliers are next re-bid. How a dominant client is priced is covered in customer concentration and valuation.
Recruiter and account manager output is ranked against tenure, and the buyer asks who holds each client relationship, who owns the candidate database and how commissions are accrued.
Two revenue tests are particular to staffing. Hours worked but not yet invoiced sit in period-end revenue, so a cutoff test compares the last timesheets with later invoices and client approvals. Placement fees are often recognized when the candidate starts and may be refunded or replaced if the candidate leaves during a guarantee period, so the buyer asks for the placement ledger and looks for a reserve.
Payroll funding and the lender
Payroll goes out each week and client cash arrives later, so a credit line secured by receivables, or a factor’s advances, funds the gap. The buyer reads the facility agreement for change-of-control terms, eligible receivables and any personal guarantee from the owner, and asks for receivables aging by client, because a slow payer may fall outside what the lender will advance against.
The facility is usually repaid and released at closing, so the buyer asks for a payoff letter and needs its own funding ready for the first payroll. Closing day also falls inside a pay cycle. The firm then owes workers and tax authorities for hours already worked, and the purchase agreement must say whether those accruals are debt-like or sit inside working capital, which is the question behind the working capital peg.
Workers’ compensation and benefit accruals
Workers’ compensation premiums are often set on estimated payroll and trued up at an audit after the policy period. The buyer requests the policies, audit statements, loss runs by policy year, the classification codes assigned to workers compared with the work they do, and the terms of any retrospective or self-funded program, including collateral. Whether the claims history carries into the buyer’s own policy is a question for its insurance broker.
Benefits get a parallel review of earned time off and of whether coverage was offered to the workers entitled to it. Buyers often treat accrued balances as debt-like, and penalty exposure is a question for benefits counsel.
Adjustments to staffing earnings
The method is laid out in normalizing earnings for a sale. These adjustments most often move a staffing firm’s earnings in a buyer’s review.
| Adjustment | Why buyers question it | Support they expect |
|---|---|---|
| Workers’ compensation accrued to audited cost (lowers EBITDA) | Year-end estimates often trail audits and open claims | Audit statements, loss runs by policy year |
| Employer cost on contractors who should be employees (lowers EBITDA) | Contractor status avoids employer costs that a corrected structure would add | Contractor agreements, counsel’s classification view |
| Payroll tax penalties and wage settlements added back | Accepted only if the cause is fixed, since a continuing practice recurs | Notices, settlement agreements, evidence of the changed process |
| Factoring and credit line fees added back | Part may buy credit protection or collections, and funding is needed anyway | Fee statements by type, facility agreement |
| Recruiter bonuses and signing payments | Earned bonuses go unaccrued, and signing bonuses recur while hiring continues | Compensation plans, accrual roll-forward |
| Owner pay and owner production | Pay above a market replacement is an add-back, but the owner’s own gross profit is at risk | Market pay data, billing history by person |
Illustrative example: How one finding reaches price twice
An owner presents adjusted EBITDA of $3,000,000, and a buyer applies an illustrative multiple of 5.0x, for a price of $15,000,000. The buyer’s review makes three findings.
| Finding | Where it lands | Effect on price |
|---|---|---|
| Workers’ compensation accrued $200,000 a year below audited cost | Adjusted EBITDA | $1,000,000 |
| Contract workers who should be employees add $100,000 a year of cost | Adjusted EBITDA | $500,000 |
| Back payroll taxes and penalties on the same workers, $350,000 | Debt-like item | $350,000 |
Adjusted EBITDA falls by $300,000, which at 5.0x takes $1,500,000 off the price, and the back taxes take another $350,000, so the price falls from $15,000,000 to $13,150,000. The reclassification counts twice without being double counted, because one line prices the cost of running the firm correctly from now on and the other is a bill for the past. The numbers are invented to show the mechanics and are not benchmarks.
Structure and preparation when payroll history is unclear
When payroll tax history or classification is unclear, a buyer can buy stock and ask for a special indemnity, an escrow or a holdback, or buy assets and take only the liabilities it names. Some payroll tax liabilities may still follow the business in an asset purchase, so counsel decides how much protection the structure gives. The comparison of asset and stock sales covers the tax side.
An owner can run these tests first, and a sell-side quality of earnings report does much of that work independently. The results then feed the sale process described in how to sell a staffing firm. The Impetus Group provides fractional investment banking support for this preparation, including earnings normalization and diligence navigation.
Frequently asked questions
What documents does a buyer request first from a staffing firm?
Payroll registers, payroll tax filings, timesheets and invoices for sample weeks, receivables aging by client, the credit or factoring agreement, workers’ compensation policies and loss runs, contractor agreements, client contracts with rate sheets, and recruiter compensation plans. Together they test compliance, margin and funding.
How is unpaid payroll tax treated when a staffing firm is sold?
Tax owed for past periods is usually treated as a debt-like item deducted from price, or covered by a special indemnity or escrow. A stock buyer inherits the entity’s history and presses harder. Some liabilities may still follow the business in an asset purchase, so counsel decides how much protection the structure gives.
Are factoring fees an EBITDA add-back for a staffing firm?
Sometimes, and only in part. Interest on an advance is a financing cost that buyers usually set outside EBITDA. A fee that also buys credit protection or collections looks like an operating cost, so the buyer asks for the fee schedule and whether its own funding would remove it.
Why do buyers ask for gross profit by recruiter?
Client relationships tend to follow recruiters, so their output is the firm’s production capacity. Buyers compare output with tenure and read non-solicit terms and commission plans. Gross profit concentrated in a few people, or the owner, draws retention agreements, a lower price or an earnout.
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Sources
- Independent contractor (self-employed) or employee?. Internal Revenue Service. Accessed October 13, 2026.
This guide is general education. It is not a valuation opinion, appraisal, investment advice, or legal or tax advice. How these guides are made.