Law Firm Valuation: Three Proven Methods to Value Your Practice for Sale

By Jeff Rudner, CPA | Co-Founder & COO, Proseer

Published: April 17, 2026 | Last Updated: April 17, 2026

Key Takeaway

A $1.5M-revenue law firm valued at 0.75x revenue sells for $1.125M. Using SDE multiples, the same firm with $350K SDE at 2.0x sells for $700K. The valuation method matters tremendously—and personal vs. practice goodwill distinctions can create six-figure tax differences. ABA Model Rule 1.17 permits practice sales, but 75% of shuttered practices failed due to poor succession planning (Bureau of Labor Statistics).

Most lawyers don’t think about selling their practice until they have to. Then it’s a crisis. At Proseer, we advise law firm owners on practice valuations, and the reality is stark: practices without documented financials, client retention metrics, and a succession plan get hit with 20–40% valuation haircuts. This guide walks you through how practices get valued, which method your buyer will likely use, and the strategies that increase value before sale.

Can You Sell a Law Practice?

Yes. ABA Model Rule 1.17 explicitly permits the sale of a law practice, provided you comply with client notification, consent, and fee-splitting restrictions.

The sale can include the practice itself (clients, matter files, reputation), revenue-producing equipment, and goodwill. However, you cannot sell your license or your professional reputation outright—those belong to you, and they cannot transfer.

The rule requires notice to affected clients and their written consent before transferring their matters. The buyer must not change existing fee arrangements solely as a result of the sale. The buyer must also maintain client confidentiality. Many states also require a written agreement and proof that the buyer is licensed and in good standing.

Potential situation: A solo practitioner, in a small market, attempts to sell their practice to a younger attorney without formally notifying clients. Three clients object, withdraw their matters, and the sale price drops $50,000. Proper client management during the sale process protects both sides.

Three Methods for Valuing Law Practices

Law practice valuations rely on three primary approaches: Revenue Multiple, Seller’s Discretionary Earnings (SDE) Multiple, and EBITDA Multiple. Each produces different results and suits different firm profiles.

Method 1: Revenue Multiple (0.5x–1.5x Gross Revenue)

The simplest method. The buyer pays a multiple of the firm’s annual gross revenue. A $2M-revenue firm selling at 0.75x goes for $1.5M. This method is common for small practices and solos because it doesn’t require detailed cost accounting. The downside: it ignores profitability. A firm with 10% profit margin and a firm with 30% margin should not get same multiple—unfair to the profitable one.

Method 2: SDE Multiple (1.5x–3.0x SDE)

SDE stands for Seller’s Discretionary Earnings—essentially net profit plus owner compensation, taxes, and one-time expenses. For a $1M-revenue firm with $300K SDE, a 2.0x multiple yields a $600K valuation. This method rewards profitable, efficient firms. It’s the most common method for mid-market law practices because it captures profitability without the complexity of full EBITDA adjustments.

Method 3: EBITDA Multiple (3.0x–6.0x EBITDA)

EBITDA is Earnings Before Interest, Taxes, Depreciation, and Amortization. This method is used for larger, institutional practices with clear financials and recurring revenue streams. A $5M-revenue firm with $1.2M EBITDA at 4.5x sells for $5.4M. The higher multiples reflect stability and growth potential.

Comparison: Revenue vs. SDE vs. EBITDA Multiples

The table below shows how each method would value the same $1.5M-revenue law practice under different profit scenarios.

Law Firm Valuation Methods Comparison
Valuation Method Multiple Range Assumptions Result ($) Best For
Revenue Multiple 0.5x–1.5x $1.5M revenue, 0.75x multiple $1,125,000 Small solos, limited financials
SDE Multiple 1.5x–3.0x $1.5M revenue, $400K SDE, 2.0x $800,000 Mid-market firms, 15+ attorneys
EBITDA Multiple 3.0x–6.0x $1.5M revenue, $350K EBITDA, 4.0x $1,400,000 Larger practices, institutional buyers

Note: SDE typically produces lower valuations because it starts with net profit (after all expenses). EBITDA can produce higher valuations for firms with heavy depreciation, amortization, or tax charges. Revenue multiple is fastest but ignores profitability.

Personal Goodwill vs. Practice Goodwill: The Tax Distinction

This distinction can cost or save six figures on the sale of your law firm. Personal goodwill is goodwill tied to you—your reputation, client relationships you personally built, your brand. Practice goodwill is tied to the firm itself—systems, processes, brand, institutional relationships.

Why it matters: Personal goodwill sales are taxed to you as ordinary income (up to 37% tax rate). Practice goodwill sold as part of the firm typically gets Section 1231 treatment (capital gains rates of 15–20%). The difference on a $500K goodwill allocation: $185K in taxes (personal) vs. $75–100K (practice). That’s $85K+ in your pocket.

The IRS uses the Reg. 1.197-2(d) test: If the client relationships would continue under a successor owner and you’re not essential to those relationships, it’s practice goodwill. If clients follow because they like you, it’s personal goodwill.

Strategic planning: Structure the sale so the buyer assumes most client relationships at closing, document your transition role, and have clients sign acknowledgment letters stating they’ll continue with the firm. Use an S-Corp election to allocate more goodwill to the firm (Section 1244 treatment). At Proseer, we coordinate the entity structure before the sale to maximize practice goodwill allocation.

Key Metrics Buyers Analyze

Buyers don’t just look at revenue and profit. They dissect your practice financials to assess risk and growth potential.

Client Retention Rate: The percentage of clients who return year-over-year. This depends on the type of firm but the higher the better. A 50% retention rate for can signal relationship or service problems and typically triggers a valuation discount.

Revenue Per Attorney: Calculated as total revenue divided by billable attorneys. Benchmark is $400K–$600K per attorney for mid-market practices. Below $300K can signal inefficiency; above $800K signals extreme leverage or specialization.

Realization Rate: The percentage of billable hours that actually get paid. A 85% realization rate (85 cents collected for every dollar billed) is healthy. Below 60% indicates write-offs, underutilization, or collection problems.

Collection Rate: Days Sales Outstanding (DSO) measures how quickly you collect payments. 45 days is excellent; 90+ days is a red flag. High DSO reduces cash flow and suggests client quality or billing discipline problems.

Profit Margin: Net profit as a percentage of revenue. Law firms typically run 15–35% margins. Below 10% is weak and limits buyer interest. Above 30% is excellent and commands premium multiples as long as the value is not all attributed to the owner.

Strategies to Increase Your Firm’s Value

You don’t have to wait until sale day to improve value. The best time to optimize is 18–36 months before the anticipated sale.

1. Improve Financial Records

Implement accrual accounting, separate operating expenses clearly, track realization and collection rates. Clean financials reduce buyer due diligence time and uncertainty. Every accounting anomaly triggers a law firm valuation hit.

2. Build Systems and Processes

Document your client intake, matter management, billing, and collection procedures. Buyers fear buying personal practices that collapse when the founder leaves. Systemized practices can command 15–25% premiums.

3. Hire and Develop Associates

A solo with $1M revenue sells for less than a firm with multiple attorneys and $1.5M revenue. Scaling beyond yourself signals institutional strength and creates succession continuity.

4. Reduce Concentration Risk

If one client is 30% of revenue and leaves, the firm loses 30% of value. Target no single client representing more than 10–15% of revenue. Diversification commands higher law firm valuation multiples.

5. Clean Up Liabilities

Resolve malpractice claims, outstanding bar complaints, and client disputes before sale. Buyers conduct thorough title searches and will adjust price down for every unresolved legal issue.

Frequently Asked Questions

What is a realistic valuation multiple for my law firm?

For mid-market practices, expect 1.5x–2.5x SDE or 0.75x–1.25x revenue. Solos typically sell for 0.5x–0.75x revenue. Larger practices (over $5M revenue) may achieve 3x–4x SDE. Your actual multiple depends on client retention, profitability, specialization, and growth trajectory.

How do I calculate SDE for valuation purposes?

Start with net profit. Add back owner salary, owner benefits (health insurance, car, home office), depreciation, and amortization. Subtract extraordinary or one-time expenses. Example: $250K net profit + $100K salary + $15K owner benefits = $365K SDE. Most lenders and buyers use a 24-month average.

Can I sell my law practice and stay on as counsel?

Yes. Many practices are sold with the founder staying as “of counsel” for 1–3 years. This transition typically earns a premium because it reduces buyer risk. Structure it as an employment agreement with declining involvement over time, not as personal goodwill retention.

What happens to my client files after the sale?

Client files transfer to the buyer, and you must obtain written client consent under ABA Model Rule 1.17. Clients have the right to take their files to another attorney at no charge. You’re responsible for notification; the buyer typically handles the file transition and new representation letters.

Maximize Your Firm’s Value

Law practice valuation isn’t rocket science—it’s systematic. Understanding how buyers value practices, knowing the tax difference between personal and practice goodwill, and documenting the right metrics can increase your sale price.

At Proseer, we help law firm owners structure their businesses for maximum value and minimum tax impact. If you’re thinking about selling your practice in the next 3 years, contact our team to discuss a strategy tailored to your situation.

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