Law Firm Valuation Calculator

How Law Firms Are Valued: The SDE Multiple Method

Small and mid-sized law firms are most commonly valued on Seller's Discretionary Earnings (SDE) — the total financial benefit flowing to a single owner-operator: net profit plus owner compensation and discretionary expenses. Typical industry ranges put law firm sale prices at 1.5x–3x SDE, or by the cruder revenue heuristic, 0.5x–1.0x annual gross revenue. Both ranges are wide because law firms differ enormously in the one thing buyers actually pay for: transferability — how much of the revenue survives the founder walking out the door. A firm where clients hire "the firm" commands the top of the range; a firm where clients hire "the lawyer" struggles to command any multiple at all.

What Raises a Law Firm's Multiple

Buyers and appraisers consistently pay more for: recurring and repeat revenue (estate planning maintenance programs, corporate retainers, institutional clients); revenue growth over the trailing three years; brand-based lead flow — rankings, reviews, and referral systems attached to the firm's name rather than the owner's personal network; documented processes and staff who stay, including intake systems that run without the owner; diversified clients with no single client dominating revenue; and clean financials that make SDE verifiable. Notice how many of these are marketing assets: a firm whose cases arrive through its website, Google Business Profile, and AI search visibility is structurally more sellable than one fed by the founder's phone. Our AI SEO service builds exactly that kind of owner-independent demand.

What Lowers the Multiple

The discounts are mirror images: declining revenue; heavy dependence on the selling lawyer's personal reputation (common in criminal defense and litigation boutiques); contingency-fee practices whose value sits in unresolved cases that are hard to price (personal injury firms often transact as fee-splitting arrangements on open files rather than clean sales); client concentration; undocumented processes; and jurisdictional constraints — in both the US and Canada, professional conduct rules restrict who may own a law practice and how sales of a practice must be handled, which thins the buyer pool compared with ordinary businesses. An intake operation that lives in the owner's cell phone is a discount; systematized intake — for example an AI receptionist plus documented follow-up — is a multiple-defending asset a buyer can verify.

Typical Valuation Ranges at a Glance

Typical educational ranges for small law firm valuation
Firm profile	SDE multiple	Revenue multiple
Owner-dependent, flat or declining, low repeat revenue	0.75x–1.5x	0.3x–0.5x
Average transferability, stable revenue	1.5x–2.25x	0.5x–0.7x
Strong systems, growing, high repeat/recurring revenue	2.25x–3x+	0.7x–1.0x+

Typical industry ranges compiled from published legal marketing benchmarks; individual markets vary widely.

Using the Estimate — and Building Value Before You Sell

Treat the output as a planning anchor, not a price. If you are years from selling, the levers that move the multiple are the same ones that grow current profit: grow revenue (size the investment with the Marketing Budget Calculator), deepen repeat and referral revenue (quantify it with the Client Lifetime Value Calculator), and remove the owner from day-to-day intake (measure the drag with the Billable Hour Leakage Calculator). Buyers increasingly check a firm's digital footprint early in diligence — run the free AI Visibility Checker to see the firm the way a buyer's search will. When a real transaction is on the table, engage a qualified business appraiser and counsel familiar with law-practice sale rules in your jurisdiction.

Educational estimates only. This calculator uses typical industry ranges and simplified models to help law firms across North America think through the numbers. Results are not financial, legal, accounting, or valuation advice, and actual figures vary by market, firm, and practice mix. Verify decisions with your own data and professional advisors.

Frequently Asked Questions

Questions About This Calculator

How much is a law firm worth?

Typical industry ranges value small law firms at 1.5x–3x Seller's Discretionary Earnings (SDE), or roughly 0.5x–1.0x annual gross revenue, depending heavily on transferability — how much revenue survives the owner's departure. Firms with recurring clients, growth, and owner-independent lead flow command the top of the range.

What is SDE in a law firm valuation?

Seller's Discretionary Earnings is the total financial benefit to a single owner-operator: net profit plus the owner's compensation, benefits, and discretionary expenses. It is the standard earnings base for valuing owner-operated professional practices, and multiples are applied to it rather than to raw profit.

What factors increase a law firm's sale value?

Recurring and repeat revenue, three years of revenue growth, lead flow attached to the firm's brand (search rankings, reviews, referral systems) rather than the owner personally, documented processes, staff likely to stay, diversified clients, and clean verifiable financials. Marketing assets that generate cases without the owner are among the strongest multiple-raisers.

Why do personal injury firms sell at lower multiples?

Because contingency-fee value sits in unresolved cases that are hard to price and in the selling lawyer's reputation and referral network. PI practices often change hands through fee-splitting arrangements on open files rather than clean multiple-based sales, which effectively lowers the transferable value.

Can lawyers legally sell their law practice?

Yes, in most US states and Canadian provinces — but under professional conduct rules governing sale of a law practice, including client notification and confidentiality requirements, and restrictions on non-lawyer ownership. These rules thin the buyer pool versus ordinary businesses, which is one reason legal-practice multiples trail comparable service businesses.

Is this calculator a substitute for a formal valuation?

No. It applies typical industry ranges to your inputs to produce an educational planning estimate. An actual sale price depends on transition terms, staff retention, payment structure, buyer financing, and jurisdiction-specific rules — engage a qualified business appraiser and counsel before any transaction.

How can a law firm increase its valuation before selling?

Start two to three years out: build owner-independent client acquisition (SEO, Google Business Profile, AI search visibility), grow recurring and repeat revenue, document intake and matter processes, automate what does not need the owner, and clean up financials so SDE is easy to verify. Growth trend at the time of sale directly scales the multiple.