Dental Practice Acquisition Due Diligence: The Complete Financial Checklist

Most dental practice buyers spend more time negotiating the headline price than analyzing the underlying numbers — and later discover surprises that would have changed the deal entirely. This guide walks through every financial document to request, how to analyze what you receive, and the specific patterns that should trigger a price renegotiation or walk-away.

Why financial due diligence matters more than clinical due diligence

A dental equipment inspection will tell you whether the chairs work. Financial due diligence will tell you whether the practice can service its debt, whether the revenue is real and recurring, and whether the reported income will hold after the seller leaves. Clinical surprises are usually fixable. Financial surprises — a payer mix heavily weighted toward Medicaid that reimburses at 40% of UCR, a collections rate of 87% that should be 98%, a staff structure that only works because the owner's spouse is on payroll at below-market wages — often aren't.

The SBA requires a DSCR of at least 1.25x before approving a 7(a) practice acquisition loan.¹ That means the practice must generate at least 25% more cash than your annual debt service. If the seller's reported income is inflated or unsustainable, you'll fail DSCR underwriting — or worse, pass underwriting with inflated numbers and discover the truth in year two.

Phase 1: Documents to request (and when to request them)

Send your due diligence request list as soon as you execute the LOI. Sellers who have prepared for a sale will have most of this ready. Sellers who haven't — or who are reluctant to provide it — are telling you something important.

Phase 2: Financial analysis — understanding the real numbers

Recasting income: what the practice actually earns

Dental practice sellers — especially sole proprietors and S-corp owners — run personal expenses through the business. Your job is to "recast" (normalize) earnings to see what the practice would earn under your ownership.

Common owner add-backs to identify and verify:

• Owner salary above market rate for a producing dentist (market: $180K–$280K depending on production)
• Family members on payroll who won't come with the practice
• Auto expenses, cell phone, travel, continuing education run through the business
• Owner's health insurance and retirement plan contributions (these are real costs, but you'll have your own)
• One-time expenses (major equipment repair, legal settlement, renovation)

Net collection rate: the most revealing single number

Net collection rate = collections ÷ adjusted production (production minus contractual write-offs). A well-run practice should collect 98% or more of what it's contractually entitled to receive.² A practice collecting 87–92% has a billing problem — staff turnover, poor follow-up on patient balances, or insurance claims that aren't being worked.

The gap between 94% and 98% on a $1.2M practice is $48,000 per year — which flows directly to EBITDA and affects your valuation. If the seller's asking price is based on 3× adjusted EBITDA and their collection rate is 94% when it should be 98%, the price is based on understated earnings. But so is your potential upside if you fix it.

Production by provider: concentration risk

If the selling dentist produces 80% of practice revenue and there's no associate, ask a straightforward question: how much of those patients come back because of that dentist specifically, and how many will transition to you?

This isn't just a clinical question — it's a financial one. Most purchase agreements include a transition period (60–90 days) during which the seller stays on and introduces you to patients. Longer transitions, earnout structures, and non-compete terms are all ways buyers manage this risk. See how sellers structure earnouts and walk-out exits.

Phase 3: Insurance and payer mix analysis

Payer mix analysis is often skipped by buyers focused on headline revenue. It shouldn't be.

For each major carrier in the practice's payer mix, request the actual fee schedule currently in effect. Do not accept summary data from the seller — get the raw contract. Carriers don't automatically transfer practice contracts; you'll renegotiate under your own provider number, and rates are often lower for new providers.

Insurance re-credentialing risk

After acquisition, you must apply to each carrier separately. Credentialing typically takes 30–90 days per carrier. During that gap, you can still treat those patients — but you can't bill insurance until you're credentialed. Patients may receive out-of-network bills they weren't expecting, creating attrition risk. Build this timing into your cash flow projections for the first six months.

Phase 4: Staff analysis

Staff expenses typically run 25–30% of collections in a well-run dental practice.² When you acquire a practice, you inherit the staff — their wages, their benefits, and their institutional knowledge. Some of that knowledge is the practice's most valuable asset; some of the wages are above market and will be difficult to renegotiate.

Key questions for each staff category:

• Front office: Who handles billing and insurance follow-up? If one person manages all AR and they leave after the sale, your collections rate will drop until you hire and train a replacement.
• Dental hygienists: Hygiene revenue (recall and perio) is the most stable, recurring revenue in the practice. High hygienist turnover is a leading indicator of patient attrition.
• Dental assistants: Review wage rates against local market. If the seller has kept wages below market to improve apparent profitability, you'll face pressure to increase pay to retain staff.
• Associates: If the practice has an associate, clarify whether they're staying post-sale, on what terms, and whether they have any ownership rights or right-of-first-refusal clauses in their employment agreement.

Phase 5: Facility and equipment

Office lease

The lease is often the most significant hidden liability in a dental acquisition. A 3,000 sq ft dental office at $35/sqft NNN in a suburban market is $105,000/year — roughly 9–10% of a $1.1M practice's collections. When you factor in CAM charges, the true occupancy cost is often 12–15%.

What to verify in the lease:

• Assignment clause: Can you assume the lease without landlord consent? Many commercial leases require consent, and landlords sometimes use acquisition transactions as leverage to renegotiate unfavorable terms.
• Remaining term: A lease with 2 years remaining creates immediate refinancing risk. Lenders and practice buyers generally want at least 5 years of remaining term, including renewal options.
• Personal guarantee: Confirm the seller's personal guarantee releases at closing. If it doesn't, the seller will be reluctant to close — and if it does stay active, understand whether you're assuming any liability.
• Renewal options: Is there an option to renew, at what rate formula (fixed % increase vs. market rate), and how much advance notice do you need to exercise it?

See the full lease review framework at dental office lease negotiation guide.

Equipment assessment

Request a full equipment list with purchase dates, service records, and any outstanding financing (UCC filings). Key items to evaluate:

For any major equipment item more than 10 years old, get an independent assessment. Factor deferred capital expenditures into your offer — equipment that needs replacement in years 1–3 should reduce the price you're willing to pay today, or be structured as a seller credit at closing.

Phase 6: Legal and compliance review

Have a dental-experienced attorney review the following before closing:

• Asset purchase agreement vs. stock purchase: Most dental acquisitions are asset purchases, which gives you a stepped-up basis in the assets for depreciation purposes and avoids assuming undisclosed liabilities. Understand which structure is proposed and why.
• Goodwill allocation: The allocation of purchase price to different asset classes (tangible assets, patient records/goodwill, non-compete) has major tax consequences. Personal goodwill treated separately can be taxed at long-term capital gains rates for the seller; the allocation directly affects your amortization deductions. See the tax treatment of goodwill under IRC §197.
• Non-compete agreement: Scope, term, and geography. A 2-year, 10-mile radius non-compete is reasonable. A 5-year, 50-mile radius is aggressive. Courts enforce dental non-competes inconsistently depending on state law — have an attorney assess enforceability in your market before you structure the price around it.
• Malpractice and OSHA compliance: Confirm all state licensing, DEA registration, and OSHA compliance records are current. Violations transfer risk to you post-closing.
• Outstanding UCC filings: Search the UCC filings with your state's secretary of state office to identify any equipment that's collateral on outstanding loans. These liens must be released at or before closing.

Red flags that warrant renegotiating — or walking away

Not every red flag is a deal-killer. Some are negotiating leverage; some are real reasons to exit. Here are the patterns that should prompt a conversation with your financial advisor before proceeding:

Due diligence timeline

Most LOIs specify a 30–60 day due diligence period. In practice, dental practice due diligence — when done properly — takes 45–60 days at minimum. Here's a rough timeline:

The role of a financial advisor in the acquisition process

A CPA handles the tax and income analysis. An attorney handles the legal documents. A financial advisor who works with dental practice buyers handles the piece in between: modeling what the practice looks like for your personal financial plan — whether the debt service fits your life, how the acquisition affects your retirement timeline, when to pursue a solo 401(k) vs. inherited group plan, and how to structure your personal finances to survive year one of ownership.

The most common mistake first-time buyers make isn't overpaying for goodwill — it's closing on a practice with a debt service structure that leaves them no margin for the unexpected. Credentialing delays, equipment failures, and staff turnover are all predictable in the aggregate even if you can't know which will happen to you. Your advisor should stress-test your cash flow model before you sign.

Related guides

• Practice Acquisition ROI Calculator — model SBA financing, DSCR, and 10-year income comparison
• Dental Practice Valuation Calculator — estimate value by buyer type before negotiating
• Buying Into a Dental Practice: The Associate Buy-In Guide — partial acquisition vs. full purchase
• Dental Office Lease Negotiation Guide — assignment clauses, TI allowances, and renewal options
• Dental Practice Sale Guide — understand what sellers optimize for, so you can negotiate better

1. SBA 7(a) Loan Program — lender eligibility and DSCR requirements
2. ADA Practice Success — benchmarks for collections, overhead, and lab fees in dental practices
3. ADA Health Policy Institute — dentist income and practice economics
4. SBA.gov — 7(a) loan program overview and use-of-proceeds guidance

Benchmark figures (net collection rate, lab cost %, staff cost %, DSCR minimums) reflect published ADA survey data and SBA lending standards current as of June 2026. Practice-specific results will vary.