Selling to a Partner or Co-Owner: California Buyout Agreements Explained

Selling your ownership interest to an existing partner or co-owner is a buyout, but the legal process depends on your business structure and governing documents. A partnership interest, LLC membership interest, and corporate shares can each involve different transfer rules, approval requirements, and buyout terms. Before agreeing to a price or signing a buyout agreement, you need to understand what your governing documents require and what California law allows. 

What Is a Partner Buyout?

A partner buyout is a sale of your ownership interest to someone who already owns part of the business, not to an outside buyer. That usually means fewer third-party consent issues. It does not mean the deal is simple. The price still has to be set, and the terms still have to be documented.

Why Entity Type Changes the Rules in a Buyout

Partnerships

Check your written partnership agreement first. It often sets the buyout price, notice requirements, and payment terms.

If it’s silent, Corporations Code Section 16701 provides a default. When a partner dissociates and the business continues, the partnership must generally buy that partner’s interest at the amount the partner would have received if the assets were sold at going-concern or liquidation value, whichever is greater, with interest from the date of dissociation. If no price is agreed, payment is due within 120 days of a written demand, and either side can ask a court to set the price.

A written partnership agreement can override this default, which is why the agreement is the first document to pull.

LLCs

The operating agreement controls. Look for:

• Transfer restrictions
• Right of first refusal terms
• Notice requirements to other members
• Any consent threshold needed to approve the sale
• A stated valuation method or appraisal process

If the operating agreement is silent on member-to-member sales, the transfer generally defaults to whatever the members agree to, subject to any amendment rules the agreement requires.

Corporations

A shareholder or buy-sell agreement typically governs. It usually specifies whether the buyout is:

• A cross-purchase, where the buying shareholder buys your shares directly, or
• A redemption, where the corporation itself buys back your shares

These carry different tax and control consequences. Without a shareholder agreement, check the bylaws and any restrictions printed on the stock certificates.

Do not assume a rule for one entity type applies to another.

How the Buyout Price Gets Determined

The price comes from one of three places:

1. Your governing document’s own formula or method, if it has one.
2. An independent appraisal or negotiated figure, where the document is silent.
3. The statutory default under Section 16701, for partnerships without a controlling provision.

Common valuation methods include a fixed price stated in the agreement, a formula tied to book value or an earnings multiple, an independent appraisal, or a straight negotiation. Which one applies depends on your documents and financials, and the resulting number is a job for a qualified appraiser or accountant, not a legal argument.

Tax treatment differs depending on how the buyout is structured, sale of a partnership interest, redemption, or an installment sale. Consult a qualified tax professional before finalizing the structure.

If You Can’t Agree on a Price

Many governing documents build in a resolution process for exactly this. If yours doesn’t, or it doesn’t produce an answer both sides accept, the practical options are a jointly selected independent appraiser, mediation, or, for a partnership, the Section 16701 court process. Litigation over valuation is expensive relative to what’s usually at stake, so resolving the price mechanism in the agreement upfront is worth the effort.

How Buyouts Get Financed

• Cash, from the buying partner’s own funds
• A seller-financed note, with you accepting installment payments, typically secured by the interest itself or other collateral
• A bank or SBA loan the buying partner obtains
• A corporate redemption, funded by the business itself, more common in corporations than partnerships or LLCs

If you’re financing part of the price through a note, specify the interest rate, payment schedule, default terms, and whether you retain a security interest until it’s paid off. Seller financing offers flexibility but leaves you exposed to the business’s future success.

What the Buyout Agreement Should Address

• The purchase price and how it was determined
• Payment terms: lump sum, installment note, or a combination
• Representations that there are no undisclosed liabilities affecting the price
• Releases between you and the buying owner
• What happens to your management authority, signing authority, and any personal guarantees on business debt, a buyout doesn’t release you from a guarantee unless the lender separately agrees
• Non-compete terms, if requested. California generally voids non-competes under Business and Professions Code Section 16600, but Section 16601 allows a narrow, geographically limited exception when you’re selling your ownership interest, so long as the buyer continues a similar business. Courts construe this narrowly.
• Amendments to the governing documents reflecting the change in ownership

What Happens at Closing

Once the buyout is finalized, several steps are completed to officially transfer the ownership interest:

• Ownership is transferred: For an LLC or partnership, the ownership interest is formally assigned to the buyer. For a corporation, the shares are transferred to the buyer.
• Required approvals are obtained: Any approvals required from the board, members, or other owners are completed.
• Payment is made: The buyer pays the agreed amount according to the terms of the buyout agreement.
• Personal guarantees are addressed: If the departing owner personally guaranteed a business loan or other debt, the buyout agreement does not automatically release them from that guarantee. The lender must separately agree to release the guarantee.
• Business records are updated: Ownership ledgers, operating agreements, shareholder records, and other governing documents should be updated to reflect the new ownership.
• Licenses and filings are updated: Any required business licenses, registrations, or government filings should be updated to reflect the ownership change.
• Transaction records are kept: Keep copies of the signed buyout agreement, valuation documents, payment records, approvals, and other documents related to the transaction.

Completing these steps helps make sure the ownership change is properly documented and that both sides have a clear record of what was agreed to and completed.

Documents to Gather First

• Ownership agreements: Partnership agreements, operating agreements, shareholder agreements, and any amendments.
• Financial records: Recent financial statements and business tax returns.
• Personally guaranteed debts: A list of business loans or other debts that you have personally guaranteed.
• Buy-sell or valuation provisions: Any existing provisions that explain how an owner’s interest can be sold or how the business should be valued.
• Past distributions or draws: Records showing money previously distributed or withdrawn by the owners.

Common Mistakes to Avoid

• Negotiating a price before checking whether your governing document already sets one
• Assuming a partnership buyout right applies to an LLC or corporation
• Forgetting personal guarantees survive the buyout
• Drafting a non-compete broader than the goodwill actually sold
• Skipping written releases
• Treating the deal as informal because you already know and trust the buyer

Key Takeaways

• Your partnership, operating, or shareholder agreement governs first, not a one-size-fits-all rule.
• California partnership law provides a statutory default buyout process, but a written agreement generally overrides it.
• LLC and corporate buyouts follow the operating agreement’s or shareholder agreement’s specific terms.
• Personal guarantees survive a buyout unless the lender agrees otherwise.
• A post-sale non-compete is only enforceable within the narrow scope California law allows.

Talk to a Business Attorney Before You Finalize the Buyout

Before you agree to a price or a timeline, review your governing documents. Amanda Rokita and the team at Rokita Law review business agreements and advise Los Angeles business owners on partner and co-owner buyouts. Schedule a consultation before you sign.

Rokita Law, P.C. provides this content for informational purposes only. It is not legal or tax advice. Consult a qualified tax professional about your transaction’s tax consequences, and a licensed California attorney about your specific situation.