5 Financial Metrics PE Buyers Check Before LOI: A Service Business Pre-Exit Checklist

Quality of earnings reviews find material EBITDA adjustments in 61% of lower-middle-market deals, with a median reduction of 12% from what the seller claimed, according to Kroll data cited by Glacier Lake Partners. That 12% haircut translates directly into purchase price. At a 4x multiple, a $100K EBITDA correction costs you $400K at closing. Here are the five metrics that trigger it.

1. Adjusted EBITDA with Defensible Add-Backs

PE buyers apply a 30-50% discount to undocumented add-backs during quality of earnings review, per Glacier Lake Partners. A $500K undocumented add-back bridge puts $250K of enterprise value at risk before the first conversation.

I have sat in rooms where a founder's "adjusted EBITDA" included personal car leases, family member salaries for no-show positions, and one-time legal costs from three years ago recharacterized as "non-recurring." Every buyer has a story like this. None of them end with the seller getting their asking price.

The defensible add-back list is short: owner compensation above market replacement cost, one-time legal or settlement costs with documentation, personal expenses run through the business with clear separation, and genuinely non-recurring project costs. Everything else stays in EBITDA.

The procedure: Build your add-back bridge on a spreadsheet. For every line item, attach the supporting document. If you cannot produce a receipt, a contract, or a board resolution, delete the add-back. Your adjusted EBITDA should survive a skeptical CPA with a red pen.

2. Revenue Concentration Risk

Any single customer representing more than 15% of revenue triggers a concentration risk discount. Above 25%, most PE buyers either re-price the deal or walk.

For service businesses, this metric is deceptive. A plumbing company might show 200 customers, but if 40% of revenue comes from three property management companies, the concentration risk is real. The buyer's calculation: what happens to revenue if one of those three relationships ends?

The procedure: Pull your last 12 months of revenue by customer. Calculate the percentage of total revenue for each. If your top customer exceeds 15%, begin diversification immediately. This is not a six-month project. It is a two-year runway before you expect to be in a data room.

3. Recurring Revenue as a Percentage of Total

IBBA Market Pulse Q4 2025 data shows service business multiples rising with deal size: 2.0x SDE at $0-500K, 3.0x SDE at $500K-$1M, and 4.1x EBITDA at $2M-$5M. The spread within each band depends heavily on recurring revenue.

A service business with 60% or more of revenue under contract trades at the top of its band. Below 20%, it trades at the bottom. The math is straightforward: recurring revenue reduces buyer risk. Reduced risk commands a premium.

The procedure: Audit every revenue stream. Categorize each as project-based, repeat-customer, or contractual recurring. Convert project-based revenue to maintenance agreements where possible. Track the recurring percentage monthly. Target 40% minimum before approaching buyers.

4. Owner Dependency Score

Due diligence has stretched to an average of 203 days, up from 124 days a decade ago, a 64% increase, according to Bayes Business School research cited by Valutico. One reason: buyers spend more time assessing operational transferability.

The owner dependency test is simple. Can the business operate for 30 days without you? Not survive. Operate. Generate revenue at the current run rate, fulfill customer commitments, and maintain quality.

If the answer is no, you have a job, not a business. PE buyers pay for businesses. They discount jobs.

The procedure: Take 10 working days off. Do not check in. Track what breaks. Every failure point is a system you need to build or delegate before exit. The 90-Day Bottleneck Audit was designed for exactly this exercise.

5. Working Capital Normalization

Working capital is the most technical metric on this list and the one most founders ignore until the LOI stage, when it becomes the most contentious negotiation point.

Buyers expect a normalized level of working capital to be delivered at closing. If your business typically operates with $200K in working capital, the buyer expects $200K in the business on day one. Any shortfall reduces the purchase price dollar-for-dollar.

Service businesses with seasonal revenue cycles are particularly vulnerable. A landscaping company selling in January shows minimal receivables and peak payables. A buyer calculating normalized working capital from that snapshot gets a number far below the annual average. The seller pays the difference.

The procedure: Calculate your trailing 12-month average working capital: current assets minus current liabilities. Track monthly. Remove anomalies (one-time equipment purchases, seasonal inventory builds). That normalized number is what you should expect to leave in the business at closing. Budget for it now.

The Pre-LOI Readiness Stack

| Metric | Target | Timeline to Fix | |--------|--------|----------------| | Adjusted EBITDA add-backs | 100% documented | 60-90 days | | Revenue concentration | No customer > 15% | 12-24 months | | Recurring revenue | > 40% of total | 6-18 months | | Owner dependency | 30-day absence test passed | 6-12 months | | Working capital | 12-month normalized average documented | 30 days |

The Doctrine Connection

Due diligence is non-negotiable. Buyers run due diligence on your business. You should run it on yourself first. The owner who discovers their own EBITDA problems before the buyer does controls the narrative. The owner who discovers them during diligence loses use and price.

Frequently Asked Questions

Q: What is the most common reason PE deals fall apart for service businesses?

Axial's Dead Deal Report analyzing 75 unsuccessful 2025 transactions found non-QoE diligence findings caused 25.3% of broken LOIs, with QoE/EBITDA discrepancies close behind at 21.3%. The combined message: financial accuracy and operational transparency are the top two deal-killers.

Q: How much does a quality of earnings report cost?

For service businesses in the $1M-$5M revenue range, a sell-side QoE report typically costs $15,000-$35,000. It is the single best investment in pre-exit preparation because it surfaces the same issues a buyer's QoE will find, except you find them first and fix them.

Q: Should I hire an M&A advisor before I am ready to sell?

Hire an advisor 18-24 months before your target exit date. The best advisors will tell you what to fix, not just what to sell. Their pre-market guidance on these five metrics typically adds 0.5-1.0x to the final multiple.

Q: What EBITDA multiples should service businesses expect in 2026?

IBBA data shows $2M-$5M service businesses trading at 4.1x EBITDA at the median. Top-quartile businesses with strong recurring revenue, clean financials, and low owner dependency can reach 5.5-6.5x. Below-median businesses with concentration risk and undocumented add-backs may trade below 3x.