Buying Out a Business Partner in an LLC, What Changes

Step-by-Step Process

1. 1

   Read the operating agreement before you name a price

   Your operating agreement outranks everything below it. Read it before you name a price.

   Most two person agreements carry a buy sell clause. It sets a valuation method, a notice period, and sometimes a payment schedule. That clause is the deal. Negotiating around it is a choice both owners have to make in writing.

   If your agreement is silent, your state's default LLC statute fills the gap. Those defaults were written for strangers. They were not written for two people who have worked together for 9 years, and they rarely land where either owner expects. Our guide to the LLC operating agreement covers what the document should have said.

   NothingAn hour Nowhere, it is your own document

   Common Mistakes

   • Negotiating a price before anyone has read the buy sell clause
   • Assuming a template agreement from a formation service covers a departure
2. 2

   Agree the price, and know who really decides it

   There is no single formula, and any page offering one is guessing. Where the agreement is silent, buyouts get priced on a multiple of earnings, on asset value, or on an independent valuation.

   A lender settles it in practice. Under SBA SOP 50 10, total debt supporting a change of ownership is limited to the business valuation amount and has to be supported by debt service coverage. So a price above the valuation does not become a bigger loan. It becomes more cash from the buyer.

   Value on cash flow, not on revenue. That is what the underwriter will do.

   $0 to a few thousand for a valuation2 to 6 weeks Nowhere yet

   Common Mistakes

   • Pricing on revenue because the multiple sounds better
   • Assuming the sale agreement price is the amount a lender will fund
3. 3

   Understand the tax split, because the two sides are not taxed alike

   Revenue Ruling 99-6 governs a buyout that leaves one owner. Its Situation 1 is the common case. A and B are equal partners, A sells the whole interest to B for $10,000, and the business carries on under B alone.

   The partner leaving is treated simply. Under section 741 that person sold a partnership interest, and the gain or loss is capital. The exception is section 751, which covers unrealized receivables and inventory, and that slice is ordinary income instead. A services business with unbilled work carries more of it than expected.

   The partner staying is treated differently. The IRS deems the LLC to liquidate and hand all its assets to both owners, then treats the buyer as purchasing the half that went to the seller. So the buyer did not buy an interest. The buyer bought assets.

   That creates a split basis in one set of property. On the half bought from the departing owner, basis is the price paid, $10,000 in the ruling, under section 1012. On the other half, basis comes through section 732(b). One machine, two bases.

   The holding period splits too, and it decides whether a later gain is taxed at long term rates. The line is one year. Section 735(b) does not apply to the purchased half, so that clock restarts the day after the sale, while the buyer's original half keeps the partnership's older holding period. Sell a machine 8 months after the buyout and the purchased half is short term while the half you already owned may not be.

   Read the ruling's own assumptions first. It assumes the LLC holds no section 751 assets and carries no debt. Real businesses usually carry both. Debt matters most, because relief from a share of it counts as money the seller received.

   Accountant time, and it is worth paying forBefore signing, not after Federal return, later

   Common Mistakes

   • Treating one price as one tax event for both sides
   • Ignoring section 751, which turns part of a services business sale into ordinary income
   • Applying the ruling literally to a business that carries debt
4. 4

   Sign the membership interest purchase agreement and amend the operating agreement

   The document is a membership interest purchase agreement. It runs shorter than a business sale, because the entity is not moving.

   It needs the price and payment terms, the effective date, and a statement that the seller's entire interest transfers. It needs mutual releases of claims. It needs a plan for any personal guarantee the departing owner signed, on the lease, on a line of credit, on equipment. A release from the company means nothing to a landlord holding a separate guarantee.

   Non compete and confidentiality terms usually sit here. So does the allocation of the price across asset classes, which both sides report to the IRS on Form 8594. The buyer's split basis depends on it.

   Then amend the operating agreement. You sign it and keep it. Nothing gets filed.

   $500 to $3,000 in legal fees is typical1 to 3 weeks Nowhere, both are internal documents

   Common Mistakes

   • Paying before the amendment is signed
   • Leaving a personal guarantee in the departing owner's name
   • Skipping the price allocation, which both sides have to report consistently
5. 5

   Pay for it, and check which SBA rules apply on your closing date

   Three routes exist. Cash from the business, a seller note paid over time, or a bank loan, usually an SBA 7(a). Most two person buyouts use two of the three.

   A seller note is the quiet workhorse. The departing owner takes payments over time. The business keeps its cash, and the price gets paid out of earnings the buyer is keeping. It also aligns the seller with the handover, because they only get paid if the business survives.

   The SBA route is where the published rules matter. They are about to move. The 7(a) programme is the SBA's main small business loan guarantee. Its rulebook is SOP 50 10. Version 8 has been in force since 1 June 2025, and version 8.1 takes effect on 1 October 2026. Any guide written this year describes one of two rule sets.

   Under version 8, a complete partner buyout carries no automatic equity requirement. That is today's rule. It bites only if the loan funds more than 90 percent of the price. Then the remaining owner must certify 24 months of active participation at the same or a rising stake, and the balance sheet must show debt to worth no worse than 9 to 1.

   Under version 8.1, both tests disappear. An Owner Buyout instead carries a 10 percent minimum equity injection, based on the purchase price in the sale agreement. Equity injection means the buyer's own cash. Read the two rules side by side and they are the same line seen from opposite ends. Today a loan can cover the whole price and the cash only matters above 90 percent. From October a tenth of the price has to be yours whatever the loan covers, so what was a threshold becomes a floor. A lender may reduce or remove it where the borrower has enough liquidity and working capital, provided the last year end balance sheet is not negative net worth. Removing it then blocks permanent working capital in any 7(a) term request for 90 days.

   Three more changes matter before you apply. The 7(a) Small lane closes to change of ownership, so the quick route is gone. A loan funding a change of ownership cannot amortize past 10 years. And at least 1 original owner has to stay in place and guarantee the loan.

   The structure surprises people too. In an Existing Owner Buyout the business and the buying owner are both Co-Borrowers, and the note is signed jointly and severally. You are not borrowing on behalf of the company. You borrow with it. Our guide to business acquisition loans covers rates, down payments and the lenders who write these.

   10 percent equity injection from 1 October 202660 to 120 days for an SBA loan With a 7(a) lender

   Common Mistakes

   • Reading a 2025 guide to SBA buyout rules and applying it to an October 2026 closing
   • Assuming the 7(a) Small streamlined lane is available
   • Not realising the buyer signs the note jointly and severally with the company
6. 6

   Close the partnership year with a final Form 1065

   The partnership terminates for federal tax purposes on the day of the sale. That is section 708(b)(1)(A). It happens automatically.

   So the LLC files a final Form 1065 for the short year ending on that date, with the final return box checked, and issues final Schedule K-1s. The business does not stop. Only the partnership return does.

   From the next day the LLC has 1 member. A one member LLC owned by an individual is disregarded by default, so the business goes on a Schedule C. The company still exists under state law. The liability shield does not lapse. Our comparison of single member and multi member LLCs sets out both tax states in full.

   The mirror image has its own ruling. Adding an owner to a single member LLC is Revenue Ruling 99-5. Buying half of one is a taxable sale of half of every asset.

   On the EIN, the IRS guidance does not cleanly answer this. Its EIN page tells partnerships to get a new number if you take over a partnership to operate as a sole proprietor, and tells LLCs to get one if you terminate an existing LLC and form a new corporation or partnership. Neither line is written for an LLC that survives under state law while its partnership classification ends. Publication 1635 does not resolve it. One thing is settled. Publication 1635 says a single member entity is not disregarded for all federal tax purposes, and for employment taxes after 1 January 2009 it counts as a separate entity, so payroll keeps running on the LLC's own number. Ask your accountant on the income tax side and do not guess.

   Accountant feesAt the next filing deadline IRS

   Common Mistakes

   • Filing a full year partnership return when the year ended on the sale date
   • Forgetting to tick the final return box, which leaves the IRS expecting another 1065
   • Changing the EIN on payroll without asking anyone
7. 7

   Fix the state record, the bank and the guarantees

   Most states do not ask who owns your LLC, so most buyouts need no state filing. The record you filed at formation named an organizer and a registered agent. It did not name the members.

   Where a filing is needed, it is usually the annual or biennial report that lists members or managers. You correct it at the next cycle. California is the exception people hit most, because its Statement of Information carries manager and member detail and runs on a statutory 6 month filing window. California also asks for an updated statement any time that information changes between windows. Check your own state's report form before you assume.

   Two things need attention on the day. Update the registered agent record if the departing owner was the agent. Change the bank signatories. Both get forgotten, and the second one is how a former partner keeps access to the money for a month.

   Usually $0Same week for the bank, next cycle for the state Your Secretary of State, if anything

   Common Mistakes

   • Assuming an ownership change must be filed with the state
   • Leaving the departing owner as the registered agent
   • Leaving the departing owner on the bank account