Law Firm Succession Planning: Buy-Sell Agreements, Practice Valuation, and Partner Transitions

A law firm that loses a founding partner without a plan in place doesn’t just lose a lawyer. It loses the client relationships that partner built over decades, the institutional knowledge of how those clients’ matters have been handled, and the revenue stream those relationships produce. The remaining partners are left negotiating a buyout price under pressure, often with the departing partner’s spouse or estate, while simultaneously trying to retain clients who are wondering whether their lawyer’s firm is about to fold. The ethical overlay makes it worse: Model Rule 1.17 governs the sale of a law practice, requiring client notification and consent, protection of client confidences, and safeguards against fee increases. There are malpractice tail coverage obligations, state bar notification requirements, and (in most states) a prohibition on non-compete agreements for lawyers. All of this needs to be resolved before the triggering event, not during it. The firms that handle partner transitions well are the ones that negotiated the buy-sell agreement, funded the buyout mechanism, and agreed on a valuation method years before anyone needed it.

Why do law firms need succession plans more than other businesses?

Law firms are relationship businesses in a way that most other professional services firms are not. A manufacturing company’s customers buy a product; a law firm’s clients buy a relationship with a specific attorney who knows their business, their risk tolerance, and the history of their legal matters. When that attorney leaves, the client relationship doesn’t automatically transfer to the next name on the letterhead. Clients follow lawyers, and they do it more readily than customers follow any other type of professional.

That relationship dependency means a law firm’s enterprise value is fragile. A significant portion of what the firm is “worth” walks out the door with every departing partner, unless the firm has deliberately built transferable relationships (multiple attorneys working each client, institutional case management systems, firm-branded client portals) and structured the economics so the departing partner is incentivized to cooperate with a transition rather than take the clients and leave.

The ethical dimension compounds the fragility. Lawyers have obligations to clients during a transition that don’t apply to other businesses. Under ABA Model Rule 1.17 (adopted in some form by most states), the sale of a law practice requires written notice to each client, an opportunity for each client to retain other counsel or take possession of their file, and continuity of representation at substantially similar fee levels during the transition period. If the departing partner dies or becomes incapacitated without warning, these obligations fall on the remaining partners, who may not even have access to the departing partner’s client files or know the status of pending matters.

Malpractice tail coverage is another issue that doesn’t arise in most industries. When a partner leaves a firm, the firm’s malpractice insurance covers only claims made during the policy period. For claims that arise after the departure (based on work done before it), the firm needs either a prior-acts endorsement on the new policy or a tail policy extending coverage for the departing partner’s work. Tail coverage is expensive, typically 150% to 250% of the last annual premium, and the buy-sell agreement needs to specify who pays for it. If the agreement is silent, the departing partner and the remaining partners will disagree about this at the worst possible time.

How is a law practice valued for a partner buyout?

Practice valuation is one of the most disputed elements of any law firm transition, because the largest asset in most law firms (goodwill) is also the most subjective. There are several methods, and they produce different numbers.

Multiple of revenue is the simplest approach. Small and mid-size law firms typically sell for 0.5x to 1.5x gross revenue, with the multiple varying based on the practice area (estate planning and real estate practices trade at the higher end because of recurring clients; litigation practices trade lower because of client concentration and case-by-case revenue), geographic market, and whether the departing partner will assist with the transition. A firm with $1,000,000 in gross revenue might be valued at $500,000 to $1,500,000 using this method. The weakness of the approach is that it ignores profitability entirely. A firm with $1,000,000 in revenue and $800,000 in overhead is worth far less than a firm with $1,000,000 in revenue and $400,000 in overhead, even though the revenue multiple would price them identically.

Multiple of earnings adjusts for profitability. Typical multiples for law firms range from 2x to 4x the firm’s normalized net income (owner compensation adjusted to market-rate replacement cost). This method is more defensible than revenue multiples because it captures what the buyer is actually getting: a stream of future income. A firm netting $300,000 per year (after paying a market-rate salary to the managing attorney) might be valued at $600,000 to $1,200,000. The challenge is defining “normalized” earnings: how much of the departing partner’s income should be treated as the firm’s earnings versus personal compensation?

Book value (assets minus liabilities) almost always understates the value of a law firm. A cash-basis firm’s balance sheet typically shows cash, furniture, equipment, a lease deposit, and liabilities. It doesn’t reflect the firm’s most valuable assets: client relationships, the firm’s reputation, and its pipeline of work in progress. Book value is useful as a floor, but using it as the sole valuation method effectively gives the departing partner nothing for the business they helped build.

Discounted cash flow (DCF) projects the firm’s expected future earnings and discounts them to present value using a rate that reflects the riskiness of a professional services business (typically 15% to 25% for small law firms, because the risk of client departure is high). DCF is the most theoretically sound method but requires assumptions about future revenue retention, expense growth, and the discount rate that can swing the result by hundreds of thousands of dollars.

The most contentious issue in any of these methods is the treatment of personal goodwill versus enterprise goodwill. Personal goodwill is the value attributable to the departing partner’s individual reputation, client relationships, and personal skills. Enterprise goodwill is the value attributable to the firm itself: its name, its systems, its location, its non-departing attorneys, and its institutional client base. In many partnership agreements, personal goodwill is explicitly excluded from the buyout calculation, meaning the departing partner receives no compensation for the relationships they’re leaving behind. The rationale is that those relationships aren’t truly transferable, and paying for them would overprice the buyout. Whether that’s fair depends on whether the remaining partners actually retain those clients after the transition, and they often do.

What is the difference between a cross-purchase and an entity redemption?

The two standard buy-sell structures for law firm partnerships are the cross-purchase (where the remaining individual partners buy the departing partner’s interest directly) and the entity redemption (where the firm itself buys back the interest). Both accomplish the same economic result, but the tax consequences diverge.

In a cross-purchase, Partners B and C each buy half of Partner A’s interest. After the purchase, B and C each have a higher outside basis in the partnership because they paid real money for the additional interest. That stepped-up basis means that when B or C eventually sells or liquidates their interest, they’ll recognize less gain. The cost basis they paid for Partner A’s share reduces their taxable gain on a future sale. The downside of the cross-purchase is complexity when there are many partners. A firm with 10 partners would need 90 individual life insurance policies (each partner owns a policy on every other partner) to fund a cross-purchase arrangement. That administrative burden is why most large firms avoid the cross-purchase structure.

In an entity redemption, the firm itself buys Partner A’s interest. The remaining partners’ ownership percentages increase automatically (B and C each go from one-third to one-half), but their outside basis in the partnership does not increase. They didn’t pay anything. The firm paid. Without a Section 754 election, the partnership’s inside basis in its assets doesn’t change either, which creates a basis mismatch: B and C now own a larger share of assets whose basis reflects Partner A’s historical cost, not the buyout price. When those assets (especially accounts receivable and work-in-progress) are later collected, B and C pay tax on income that economically was part of the buyout price they indirectly funded.

The Section 754 election solves this problem. When the election is in place and a partnership interest is transferred or redeemed, the partnership adjusts the inside basis of its assets under IRC 743(b) (for transfers) or IRC 734(b) (for distributions in liquidation of a partner’s interest). The adjustment matches the inside basis to the outside basis, eliminating phantom income. For law firms with significant receivables and WIP, failing to make this election is one of the most expensive oversights in partnership tax.

The insurance mechanics also differ. In a cross-purchase, each partner owns policies on the other partners and pays the premiums personally. In an entity redemption, the firm owns a single policy on each partner and pays the premiums as a business expense. The entity redemption requires only N policies (one per partner) rather than N x (N-1). For a four-partner firm, that’s 4 policies versus 12. The simplification is significant, but there’s a tax trap: if the firm owns the policy and a partner leaves (rather than dying), the transfer of the policy to another partner can trigger the transfer-for-value rule under IRC 101(a)(2), making the death benefit taxable rather than tax-free. Proper structuring avoids this, but it requires attention at setup, not after the fact.

How does IRC 736 classify buyout payments to a departing partner?

When a partner retires or dies, the payments from the partnership to the departing partner (or their estate) are classified under IRC 736 into two categories that carry different tax treatment for both sides.

IRC 736(b) covers payments for the departing partner’s interest in partnership property. These are treated as a distribution under IRC 731 (if the partner’s interest is liquidated) or as a payment in exchange for the partnership interest under IRC 741 (if the interest is sold to another partner). Generally, the departing partner recognizes capital gain to the extent the payment exceeds their outside basis, and the payment is not deductible by the partnership.

IRC 736(a) covers everything else: payments for the partner’s share of unrealized receivables (including items described in IRC 751(c)) and, importantly, payments for goodwill to the extent the partnership agreement does not specifically provide for goodwill payments. These payments are treated either as a distributive share of partnership income (if determined with regard to the partnership’s income) or as a guaranteed payment (if a fixed amount). Either way, the payment is ordinary income to the departing partner and effectively deductible by the remaining partners (because it reduces the income allocated to them).

This 736(a)/736(b) distinction creates a fundamental tension in the buyout negotiation. The departing partner wants more of the payment classified as 736(b) because capital gain rates are lower than ordinary income rates. The remaining partners want more classified as 736(a) because those payments are deductible, reducing their taxable income. The partnership agreement, drafted years before the buyout, determines how much of the payment falls into each category.

The goodwill treatment under IRC 736 is where the planning opportunity lies. If the partnership agreement is silent on goodwill, payments attributable to goodwill in a partnership where capital is not a material income-producing factor (which describes virtually every law firm) are classified as IRC 736(a) payments, meaning ordinary income to the departing partner but deductible by the remaining partners. If the partnership agreement specifically provides for goodwill payments, those payments are reclassified as IRC 736(b), meaning capital gain to the departing partner but not deductible by the remaining partners. The agreement should be drafted with both sides’ tax positions in mind, and the overall price can sometimes be adjusted to compensate for the tax classification that favors one side.

What happens to unrealized receivables and work-in-progress in a buyout?

This is frequently the largest asset in a law firm and the source of the most contentious tax disputes in partner departures. A cash-basis law firm (which describes most law firms) does not recognize income until it collects a receivable. Accounts receivable and unbilled work-in-progress (WIP) have a zero tax basis on the partnership’s books. When a departing partner is bought out, the partner’s share of those receivables is treated as an IRC 751 “hot asset,” and the payment attributable to that share is ordinary income to the departing partner, not capital gain, regardless of how the buy-sell agreement characterizes it.

The hot asset rules override the general rule that a sale or exchange of a partnership interest produces capital gain. Section 751(a) provides that the amount of gain attributable to unrealized receivables and inventory items is treated as income from the sale of property that is not a capital asset. In plain terms, if Partner A’s share of the firm’s receivables is $500,000 (at face value, with a zero tax basis), the $500,000 payment for those receivables is ordinary income. There’s no way around this classification. It’s baked into the statute.

For the remaining partners, the treatment of the receivables payment depends on whether the payment falls under IRC 736(a) or 736(b). Unrealized receivables are IRC 736(a) items in a service partnership, which means the payment is deductible by the firm (it reduces the remaining partners’ allocable income). This is one of the few areas where the departing partner and the remaining partners agree on the desired classification, because 736(a) treatment hurts the departing partner (ordinary income instead of capital gain) but benefits the remaining partners (deduction). The negotiation is about price, not classification: the remaining partners may need to pay a higher total price to compensate the departing partner for the unfavorable tax treatment on the receivables portion.

The Section 754 election matters here as well. Without the election, after the buyout is complete, the remaining partners’ proportionate share of the partnership’s receivables still has a zero inside basis. When those receivables are collected, the remaining partners recognize ordinary income on amounts that were economically included in the buyout price they already paid. They’re taxed twice: once indirectly through the buyout price (which funded the departing partner’s payment) and again when the receivables are collected. The 754 election adjusts the inside basis of the receivables to reflect the purchase price, so the collection doesn’t create additional taxable income.

How should death and disability provisions be structured?

The buy-sell agreement needs to address three triggering events beyond voluntary retirement: death, total disability, and involuntary withdrawal (expulsion). Each requires a different funding mechanism, a different timeline, and a different valuation approach.

Death. Life insurance is the standard funding mechanism for a death buyout, because it provides immediate liquidity at the moment the obligation arises. In a cross-purchase arrangement, each partner owns a policy on every other partner. In an entity redemption, the firm owns a policy on each partner. The death benefit is generally tax-free under IRC 101(a)(1), but there’s an important exception: the transfer-for-value rule under IRC 101(a)(2). If a life insurance policy is transferred for valuable consideration, the death benefit becomes taxable to the extent it exceeds the buyer’s basis in the policy. There are exceptions to the transfer-for-value rule (transfers to the insured, to a partner of the insured, or to a partnership in which the insured is a partner), but restructuring the insurance arrangement without understanding these exceptions can inadvertently make a tax-free death benefit fully taxable.

The valuation for a death buyout should be pre-determined in the agreement, either by formula (revenue multiple, earnings multiple, or book value plus a goodwill component) or by requiring periodic appraisals (typically every two to three years). A common mistake is setting a fixed price in the agreement and never updating it. A buy-sell agreement drafted in 2010 with a $400,000 valuation for a practice that now generates $1,200,000 in revenue creates an obvious problem: the deceased partner’s estate receives a fraction of fair value, or the agreement is challenged in court.

Disability. Disability buyout insurance is available but less commonly purchased than life insurance. A disability buyout policy pays a lump sum (or installments) when a partner becomes totally disabled as defined in the policy. The definition of “total disability” matters enormously: “own occupation” means the partner can’t practice law; “any occupation” means the partner can’t work at all. The waiting period (typically 12 to 24 months) determines when the buyout obligation is triggered. During the waiting period, the partnership agreement should specify what happens to the disabled partner’s compensation, voting rights, and client responsibilities.

Without disability buyout insurance, the partnership must fund the buyout from operations or reserves. For a small firm, buying out a disabled partner at full value while simultaneously losing that partner’s revenue production can create a cash flow crisis. The buy-sell agreement should include a disability discount (typically 10% to 25% below the death or voluntary retirement price) or a longer installment period to ease the financial burden on the remaining partners.

Involuntary withdrawal. The agreement should specify what constitutes grounds for expulsion (loss of license, conviction of a crime, conduct prejudicial to the firm), the process (vote of remaining partners, notice period), and the valuation methodology for an involuntary departure. Many agreements apply a lower valuation or forfeiture of goodwill for involuntary withdrawal, on the theory that a partner who is expelled for cause should not receive the same consideration as a partner who retires in good standing.

What are the most common succession planning mistakes?

The most damaging mistake is having no buy-sell agreement at all. Roughly half of small and mid-size law firms operate without one, on the assumption that the partners will work things out when the time comes. They won’t. The departing partner’s interests (maximize the buyout price, get paid quickly) are fundamentally opposed to the remaining partners’ interests (minimize the price, pay slowly, retain clients). Without an agreement in place, the negotiation happens during a crisis (death, disability, or a contentious departure), when the emotional stakes are highest and the time pressure is most acute.

The second most common mistake is a valuation formula that hasn’t been reviewed in decades. A firm that set its buyout price based on 1995 revenue numbers is effectively confiscating value from any partner who leaves today. Buy-sell agreements should require a valuation update at least every three to five years, or use a formula that automatically adjusts (such as a trailing three-year average of net income times a fixed multiple).

Inadequate insurance funding is the third mistake. Life insurance premiums increase with age, and firms that defer purchasing coverage find that the cost of insuring a 60-year-old partner is three to four times the cost of insuring the same partner at 45. By the time the coverage is most needed, it may be unaffordable. Disability buyout insurance has even more aggressive age-related pricing and underwriting restrictions.

Failing to address unrealized receivables explicitly in the agreement is the fourth mistake. If the agreement says the departing partner receives their capital account balance plus a goodwill payment, and says nothing about receivables, the tax treatment of the receivable buyout defaults to the IRC 736/751 rules without any negotiated price adjustment. The departing partner may be surprised to learn that a large portion of their buyout is ordinary income rather than capital gain, and may have no contractual basis to negotiate a gross-up.

Ignoring the Section 754 election is the fifth mistake. In a firm with $2,000,000 in receivables and WIP, failing to make the election before a buyout can cost the remaining partners hundreds of thousands of dollars in phantom income over the collection period. The election is a one-page filing (a statement attached to the partnership return), and once made, it’s irrevocable. But the administrative burden is real: the firm must maintain detailed records of each partner’s special basis adjustments. For most law firms, the benefit far outweighs the cost, but the election must be made in the year of the triggering event or earlier.

The sixth mistake involves non-compete agreements. In most states, non-compete agreements for lawyers are unenforceable under the ethics rules. ABA Model Rule 5.6 prohibits restrictions on a lawyer’s right to practice, including as a condition of a partnership or employment agreement. A buy-sell agreement that attempts to prevent a departing partner from practicing law in the same geographic area or soliciting former clients is likely void, and any reduction in buyout price conditioned on the non-compete may be challenged as well. The alternative is an economic incentive: a higher buyout price if the departing partner cooperates with the transition and doesn’t actively solicit clients during a reasonable transition period. This isn’t a non-compete; it’s a cooperation bonus.

What should I do next?

If your firm doesn’t have a buy-sell agreement, that’s the first priority, because every day without one is a day where a death, disability, or contentious departure could trigger an unstructured negotiation at the worst possible time. If you have an agreement but it hasn’t been reviewed in five or more years, get the valuation formula and insurance funding reviewed now, before premiums increase further.

The tax structuring of the buyout (the 736(a)/736(b) split, the 754 election, the treatment of receivables) isn’t something to figure out during the transition. It needs to be built into the agreement from the beginning, because once the triggering event occurs, the tax classification is locked by the terms that were already in place.

Related guides in this series:

• Partner compensation, guaranteed payments, and self-employment tax, because the K-1 structure during active practice determines the baseline for the buyout calculation
• Law firm entity structure: PC, PLLC, LLP, and the S-corp election, because the entity form determines whether IRC 736 applies at all (it applies to partnerships, not S-corps or C-corps)
• Law firm bookkeeping and chart of accounts, because accurate WIP and receivables tracking is the foundation of the hot asset calculation
• Billing, collections, and accounts receivable, because the receivables balance at the time of departure is often the single largest component of the buyout
• Retirement plans for law firms, because the departing partner’s retirement plan balance is separate from the buy-sell payment and needs its own rollover or distribution plan
• Cybersecurity and data breach deductions, because business continuity planning (of which succession is a part) includes protecting client data and case files during the transition
• Dental practice valuation and sale, the parallel valuation, IRC 1060 allocation, and personal goodwill analysis for another professional practice where individual relationships drive the purchase price

This guide is general information, not tax advice for your specific situation. Which points apply, and how, depends on your facts.