At a law firm, whether you’re called a shareholder or a partner comes down to how the firm is legally organized. Shareholders own stock in a professional corporation; partners hold an interest in a general partnership or, more commonly today, a limited liability partnership. The law firm shareholder vs. partner distinction changes how you get paid, how you’re taxed, how much personal liability you carry, and how much say you have in running the place. To clients and the outside world, both titles signal the same thing: a senior lawyer with an ownership stake. The real differences live in the organizing documents.
What Each Title Actually Means
Shareholders exist in professional corporations. Ownership is divided into shares of stock, and the number of shares you hold usually determines the weight of your vote and the size of your distribution. Shares can be transferred according to the firm’s bylaws and shareholder agreement, though most firms impose heavy restrictions, and every state limits ownership to licensed attorneys.
Partners exist in partnerships. Ownership takes the form of a partnership interest governed by a partnership agreement rather than corporate bylaws. That agreement spells out capital contributions, profit-sharing ratios, management authority, and what happens when someone leaves. Partners generally have a more direct hand in day-to-day governance, since partnership structure tends to be less formal than a corporate board.
How You Get Paid and Taxed
This is where the choice of entity has real financial consequences.
A professional corporation taxed as a C corporation pays entity-level tax on its income, and shareholders are taxed again on any dividends they receive. Partnerships are pass-through entities: the firm itself pays no income tax, and profits and losses flow through to each partner’s individual return.
Most law firms organized as professional corporations avoid double taxation by electing S corporation status under the Internal Revenue Code, which gives them pass-through treatment while keeping the corporate liability shield.1Office of the Law Revision Counsel. 26 USC 1361 – S Corporation Defined S corporation shareholders who pay themselves a reasonable salary can also reduce self-employment tax exposure, because distributions beyond salary aren’t subject to payroll taxes. That tax planning is one of the main reasons the professional corporation form has stayed competitive with the partnership form.
How the money actually reaches you also differs. Shareholder firms distribute profits as dividends declared by the board, with each shareholder receiving an amount tied to shares held. State corporate law imposes guardrails: a firm generally can’t pay dividends that would leave it unable to cover its debts.
Partnership distributions are governed entirely by the partnership agreement, and the variety is wide. Some firms split profits equally among equity partners. Others use formulas built on origination credit, hours billed, seniority, management roles, or some combination. A few large firms use a fully subjective compensation-committee model. The flexibility to tailor pay to individual contributions is one reason the partnership model dominates large-firm practice. It’s also the source of some of the most contentious internal politics in the profession.
Voting and Control
In a shareholder-based firm, voting power scales with ownership. Major decisions like approving a merger, amending the bylaws, or bringing in a lateral group typically require a majority or supermajority vote at a formal meeting. The structure is predictable but rigid.
Partnerships handle governance through the partnership agreement, which can be as flexible or as restrictive as the partners want. Some agreements give every equity partner an equal vote regardless of ownership percentage. Others weight votes by capital account or seniority. Admitting new equity partners or dissolving the firm often requires unanimous consent. That flexibility is a strength when the agreement is well drafted and a liability when it isn’t; disputes over ambiguous governance provisions are among the most common partnership conflicts.
Buy-Ins and Capital Contributions
Becoming an equity owner, under either structure, usually requires a capital contribution. Industry surveys consistently put the typical requirement at 25% to 35% of anticipated annual compensation. At small firms with fewer than 20 attorneys, that might mean $25,000 to $100,000. At large national firms, new equity partners can face buy-ins of $500,000 or more. The capital funds working capital needs: accounts receivable, lease obligations, and cash flow between billing and collection.
Firms use several approaches to make the buy-in manageable. Some negotiate group loans with banks at favorable rates, letting new owners borrow the full amount and repay from future distributions. Others allow phased contributions over several years. A few let owners fund the entire buy-in from withheld distributions. The method matters because it affects your cash flow for years. Before accepting an equity offer, understand not just the dollar amount but the repayment terms, the interest rates, and what happens to your capital account if you leave.
Getting your capital back on the way out is usually slower than putting it in. Most firms return capital in installments rather than a lump sum, with repayment timelines ranging from six months to five years after departure.
Liability Exposure
Liability is one of the most consequential differences and the reason most law firms have moved away from the general partnership form.
In a general partnership, every partner is personally liable for the firm’s debts and for the malpractice of other partners. Personal assets outside protected categories are on the line. That’s why very few law firms of any size still operate as general partnerships.
Limited liability partnerships shield individual partners from personal liability for other partners’ misconduct and the firm’s general debts. You remain personally liable for your own malpractice and for the acts of anyone you directly supervise, but a colleague’s negligence on the other side of the building doesn’t reach your personal assets. Most states now authorize LLPs, and the structure has become the dominant form for mid-size and large firms.
Shareholders in professional corporations get a similar shield. The corporate form protects personal assets from the firm’s general liabilities. Every state, however, requires that lawyers remain personally liable for their own professional negligence regardless of entity type. A professional corporation protects you from a co-shareholder’s malpractice, not your own.
Both shields have a common weak point: personal guarantees. If you personally guarantee a firm lease or line of credit, the entity structure won’t help you. Lenders and landlords routinely require guarantees from firm owners, especially at smaller or newly formed firms. Once you sign one, you’ve stepped outside the protection the entity would otherwise provide.
Leaving the Firm
When a shareholder leaves a professional corporation, the departure usually follows a redemption: the firm buys back the departing shareholder’s stock at a price set by the valuation method in the shareholder agreement. Common approaches include book value, a multiple of earnings, or appraisal by an independent valuator. The predictability of a corporate buyback is one of the advantages of the shareholder model, provided the agreement was drafted with enough specificity.
When a partner leaves a partnership, the process is governed by the partnership agreement and, where the agreement is silent, by the state’s version of the Uniform Partnership Act. Under most versions of the Act, a dissociated partner is entitled to a buyout price based on the greater of the firm’s liquidation value or its going-concern value, and the firm generally has 120 days after receiving a written demand to pay or make a written offer with a payment schedule. In practice, partnership agreements almost always override these defaults with their own formulas and timelines.
One rule catches many lawyers off guard: non-compete clauses are virtually unenforceable against departing lawyers. ABA Model Rule 5.6, adopted in some form by nearly every state, prohibits agreements that restrict a lawyer’s right to practice after leaving a firm, with a narrow exception for provisions tied to retirement benefits.2American Bar Association. Rule 5.6 Restrictions on Rights to Practice A firm can’t prevent you from practicing in the same city, the same practice area, or across the street. Provisions that penalize a departing lawyer for taking clients, including forfeiture-of-compensation clauses, face heavy scrutiny and are void in many jurisdictions. If your shareholder or partnership agreement contains language that effectively discourages you from practicing after departure, it likely violates Rule 5.6 regardless of the label.
Non-Equity Partners Aren’t Owners
Not everyone with “partner” on the business card actually owns a piece of the firm. Many firms maintain a non-equity partner tier that carries the title and some of the prestige but no ownership stake. Non-equity partners don’t share in profits or losses and are typically excluded from voting on major firm decisions like mergers, strategic direction, or compensation structure. Their pay is usually higher than an associate’s but lower than what equity partners earn, and it doesn’t fluctuate with firm performance.
The trade-off is straightforward: less risk, less reward, less control. No capital contribution required, but no equity upside either. Some firms treat the non-equity tier as a proving ground with a real path to equity. Others use it as a permanent home for lawyers who bring value without meeting equity thresholds. If you’re offered non-equity partnership, the question worth pressing is what path to equity exists, if any, and whether the firm has actually promoted people along it.
Who Can Own a Law Firm
Whichever structure your firm uses, ABA Model Rule 5.4 prohibits lawyers from sharing legal fees with non-lawyers and restricts non-lawyer ownership of law firms.3American Bar Association. Rule 5.4 Professional Independence of a Lawyer You can’t sell equity to outside investors, bring in a non-lawyer executive with an ownership stake, or merge with a non-legal business in most of the country. Washington, D.C. has permitted non-lawyer ownership since 1991, and Arizona and Utah opened the door to various forms of non-lawyer involvement starting in 2021. Outside those jurisdictions, every owner, whether shareholder or partner, must be a licensed attorney in good standing.