Most business owners spend years getting their financials clean before a sale. The P&L is polished. The books are reconciled. Revenue is well-documented.
Then diligence starts, and a buyer’s HR and employment attorney finds a cluster of issues that weren’t on the P&L at all.
Hidden HR liabilities don’t usually kill deals outright. Instead, they give buyers leverage: to renegotiate price, widen escrow holdbacks, add indemnification clauses, or slow the process down while issues get resolved. In our last post, we looked at key-person dependency — the risk that relationships and knowledge sit with too few people. This post is about the other side of the same coin: the hidden obligations attached to those people that sellers often don’t see coming.
Why “Clean Books” Aren’t Enough
The financial statements show revenue, costs, and profit. What they usually don’t show is weakness in your HR infrastructure. For instance:
- Whether your 1099 contractors should actually be W2 employees or some “salaried” employees are actually misclassified and owed years of unpaid overtime
- Whether health plan, 401(k), or COBRA administration has been handled in compliance with ERISA and IRS rules
- Whether personnel files, performance records, and disciplinary documentation exist to support past employment decisions
- Whether turnover is quietly high, signaling morale or management problems a buyer will inherit — we cover this in depth in the next post in this series
These aren’t exotic legal risks. According to Mayfaire Row’s analysis of acquisition survey data, HR and employment issues are routine findings in small business acquisitions — and they routinely affect deal terms.
Here are the five areas buyers look hardest at.
1. Worker Misclassification
This is consistently the highest-stakes HR finding in small business diligence.
Treating workers as independent contractors when they legally qualify as employees creates exposure across multiple fronts: back payroll taxes, interest and penalties, potential overtime under the Fair Labor Standards Act, and retroactive benefits obligations. Buyers treat that exposure as a contingent liability — meaning it gets priced into the deal, either through a price reduction, an indemnification clause, or money held in escrow until the risk period passes.
Littler Mendelson’s 2023 acquisition survey found worker misclassification in 34% of small business acquisition targets — roughly one in three deals. For businesses in industries that lean heavily on contractors (marketing, delivery, cleaning services, trades), the rate is higher still.
The fix: audit every 1099 relationship before you go to market. The IRS and DOL each apply their own tests to determine whether a worker is genuinely independent. If there’s any doubt, get an employment attorney’s opinion before a buyer’s attorney forms their own.
2. Unfunded PTO Liability
Accrued but unpaid paid time off is earned compensation. In most states, it’s a balance sheet liability — money owed to employees if they leave. The problem is that most small businesses don’t track it with the same discipline they track accounts receivable, and it rarely appears clearly on the balance sheet.
To illustrate the scale: a 20-person company where employees average 10 days of accrued PTO at $30 an hour is carrying roughly $48,000 in unfunded leave liability. For professional services businesses with salaried staff and generous PTO policies, the number grows quickly. If it shows up in diligence unannounced, it affects the working capital calculation and can become a negotiating point. If it was earned, it’s often owed. Get a current PTO accrual schedule reconciled against payroll records before you’re in front of a buyer.
3. Missing or Weak Employment Agreements
This section covers two related issues that often show up together in diligence: weak employment agreements and gaps in personnel documentation. Both create uncertainty for a buyer — and uncertainty in diligence becomes leverage.
Employment agreements
Many small businesses run for years without formal written employment agreements for key staff — and it works fine, until a sale. At that point, a buyer needs to know what happens to your people after close. Without written agreements, there’s limited contractual protection around notice periods, confidentiality, and non-solicitation. There’s nothing in writing to prevent a key employee from leaving the week after close, taking client relationships or institutional knowledge with them. Well-drafted agreements covering non-solicitation (typically 12–24 months), confidentiality, and clear compensation terms give a buyer something to stand on.
Personnel files and HR documentation
This is actually the more common issue in small business diligence. Buyers will ask to see personnel files during due diligence — and in many small businesses, those files are incomplete, inconsistent, or effectively nonexistent. What they’re looking for includes: offer letters and compensation records for each employee, signed acknowledgment of key policies (handbook, code of conduct), performance review history, disciplinary documentation, and records of any workplace incidents or complaints.
Missing or thin personnel files create two problems. First, they make it hard for a buyer to verify what they’re taking on. Second, if there’s ever a dispute with an employee post-sale — a wrongful termination claim, a harassment allegation — sparse records leave the business with no paper trail to defend itself.
Before you go to market: audit your personnel files for completeness. Every current employee should have a file that tells a clear, consistent story from hire to present.
4. Payroll and Wage Compliance
Payroll errors and wage and hour compliance gaps are another common diligence finding. This includes misclassified salary vs. hourly status, unpaid overtime, incorrect overtime calculation methods, and gaps in record-keeping.
Buyers and their employment attorneys will review payroll records looking for patterns that suggest systemic compliance issues rather than one-off errors. A pattern of the same type of error — applied across multiple employees over multiple years — can become the basis for a price adjustment or an indemnity, because it implies an ongoing liability rather than an isolated mistake.
Clean, consistent payroll records that match your employment classifications and your state’s wage and hour rules are worth reviewing well before you go to market.
5. Benefits and COBRA Obligations
Employee benefits create obligations that follow the business — and compliance gaps here are more common than most small business owners expect.
Before closing, buyers will typically review the current health insurance plan (contribution rates, upcoming renewal dates, and whether the plan has been administered correctly), COBRA administration processes for departing employees, and retirement plan status.
On the retirement plan side, 401(k) plans carry specific ERISA compliance obligations that are easy to let slip in a small business: timely deposit of employee deferrals, accurate plan document maintenance, required annual testing (ADP/ACP tests for non-discrimination), and filing of Form 5500. If any of these have been missed or administered inconsistently, a buyer’s ERISA review will find it — and the correction process can be time-consuming and costly if it hasn’t been done before diligence.
The practical fix: if you have a 401(k) or other retirement plan, have a benefits advisor or ERISA attorney review plan compliance before you go to market. The correction programs available proactively (through the IRS’s EPCRS program, for example) are significantly less painful than having the issue surface as a buyer’s negotiating point. And make sure COBRA notices and administration are documented and current — this is a routine compliance gap that’s straightforward to fix but shows up reliably in diligence.
What These Gaps Have in Common
None of these issues are impossible to fix. What makes them problems is when they’re found. Discovered by a buyer’s attorney during diligence, they become leverage. Identified and resolved by the seller before going to market, they’re just operational cleanup.
The difference between the two outcomes is usually 12–18 months of lead time.
What to Do Before You Go to Market
- Audit every contractor relationship against IRS and DOL classification tests.
- Reconcile PTO accruals for every employee and reflect them accurately in your financials.
- Review employment agreements for key staff — have an employment attorney assess enforceability and draft replacements where needed.
- Audit your personnel files — every employee should have a complete file from hire to present, including offer letter, policy acknowledgments, performance history, and any disciplinary documentation.
- Check payroll for systematic errors in classification, overtime calculation, and record-keeping.
- Review 401(k)/ERISA compliance — confirm timely deferrals, annual testing, Form 5500 filings, and plan document currency. Have COBRA administration documented and current.
- Document your HR policies — buyers want to see that practices are consistent and written down, not managed by memory.
If you want to know where your business stands before a buyer starts asking, book a Focus HR exit-readiness review. It’s the same work — done on your timeline instead of theirs.
Clint Parry, MBA, SHRM-SCP is a Senior Business Consultant at Focus HR, now powered by OneDigital. Based in Arizona, Clint works with growing companies to help them turn HR from an administrative burden into a strategic advantage.
