To change an LLC’s ownership percentage, you follow a defined sequence: read the operating agreement to confirm what approvals and procedures apply, agree on how the interest will be valued, get formal member consent, amend the operating agreement (and sign a purchase agreement if money is changing hands), update state and IRS records where required, and report the change correctly on the next round of tax filings. Skip a step and the change may be unenforceable, or it may quietly trigger a tax bill nobody planned for.
Read the Operating Agreement First
Your operating agreement is the binding contract that controls ownership changes once every member has signed it.1U.S. Small Business Administration. Basic Information About Operating Agreements Before doing anything else, read the sections on transfer of membership interests, admission of new members, and amendments. Three things matter most:
- Consent thresholds. Does the change need a simple majority, a supermajority, or unanimous approval?
- Transfer restrictions. Can interests be sold or gifted to outsiders at all, and do existing members have a right of first refusal that lets them match any outside offer?
- Buy-sell provisions. How is the interest priced when a member leaves: a fixed price, a formula tied to earnings, or an appraisal?
Anti-dilution clauses deserve a separate look. If your agreement has one, bringing in a new member at a set percentage may automatically adjust everyone else’s stake or trigger additional buyout rights. If it doesn’t, existing members can see their voting power and profit share shrink without ever selling anything.
Right of First Refusal
Many operating agreements require a departing member to offer their interest to the other members before selling to an outsider, on the same terms as the outside offer. Remaining members can buy proportionally to their current holdings; if nobody takes it, the sale to the outsider goes through. Skipping this step when the agreement requires it can void the entire transfer.
If You Don’t Have an Operating Agreement
When an LLC never adopted one, state default rules fill the gap, and those defaults tend to be restrictive. Under the model law most states have adopted in some form, transferring a membership interest gives the buyer the right to receive distributions, but it does not automatically make them a member with voting rights or access to company records. Full member status usually requires approval from the other members.1U.S. Small Business Administration. Basic Information About Operating Agreements If you’re operating under default rules and want to restructure ownership, draft an operating agreement as part of the process. Generic state provisions are a bad tool for something this important.
Agree on How the Interest Will Be Valued
Before anyone votes on a change, the members need to agree on what the interest is worth. This matters whether someone is buying in, cashing out, or receiving a bigger stake in exchange for a capital contribution. Four common approaches:
- Fixed price. Members agree on a specific dollar value or per-percentage-point price. Simple, but it goes stale as the business grows.
- Formula pricing. A predefined calculation tied to earnings, book value, or net assets. More responsive to performance than a fixed price.
- Single appraiser. One independent valuation firm sets the value. Faster and cheaper than using multiple.
- Multiple appraisers. Each side hires its own, and a third resolves any gap beyond a set threshold. More expensive, harder to manipulate.
If the operating agreement specifies a method, follow it. If not, negotiate the method before anything else, because that negotiation can stall the whole process. Capital account balances are a useful starting point: they track each member’s financial stake from initial contributions through accumulated profits and losses, and well-maintained accounts give everyone an objective record of what has gone in and come out.
Get Member Approval
With the rules understood and valuation settled, you need formal approval from the members. Two routes work.
The traditional route is a meeting where the change is discussed and voted on, with the vote and outcome recorded in minutes. The alternative, common in smaller LLCs, is a written consent: a single document describing the approved changes and signed by enough members to meet the operating agreement’s threshold. Either way, you want a clear written record. Verbal agreements about ownership are how disputes start.
Controlling members should know they owe fiduciary duties to minority members. Under the model LLC statute most states follow, members of a member-managed LLC owe duties of loyalty and care to one another and to the LLC. Using a majority vote to dilute a minority member’s stake without fair consideration, or forcing them out at a below-market price, can create legal liability even when the vote count is technically sufficient.
Put the Change in Writing
Once approval is in hand, the change needs proper documentation. Depending on what happened, you may need one or several of the following.
Amendment to the Operating Agreement
Every percentage change requires an amendment, or a full restatement if the changes are substantial. This is the internal record that makes the new structure official.2Securities and Exchange Commission. Exhibit 10.3 – Amendment to Limited Liability Operating Agreement It should include:
- The LLC’s full legal name and state of formation
- The effective date of the change
- Each member’s name with their previous and new ownership percentages
- A statement that the document amends or replaces the prior operating agreement
- Signature lines for all members
All members should sign, not only the ones whose percentages are changing. An unsigned amendment creates ambiguity about whether everyone actually agreed.2Securities and Exchange Commission. Exhibit 10.3 – Amendment to Limited Liability Operating Agreement
Membership Interest Purchase Agreement
When one member is selling to another person or to the LLC itself, you also need a separate purchase agreement covering the price, payment terms, and any conditions to closing. The seller typically represents that they own the interest and have authority to sell it.3Securities and Exchange Commission. Membership Interest Purchase Agreement The agreement should also address what happens to the seller’s capital account balance and any loans between the seller and the LLC. For transfers between family members or co-owners at below-market prices, this document does double duty as tax documentation.
Membership Certificates
If your LLC issues physical membership certificates, old certificates become inaccurate after a percentage change and should be formally canceled. New certificates then go out to every member reflecting the updated percentages. Not every LLC uses certificates, but outdated ones floating around create confusion.
Update State and Federal Records
Internal documents aren’t always the end of the paperwork.
State Filings
If the change adds or removes members, and your state required member names on the original formation documents, file articles of amendment (sometimes called a certificate of amendment) with the Secretary of State or equivalent agency. Forms are available on the state’s business filing site and can generally be submitted online. Filing fees vary but are modest. Some states handle member updates through annual or biennial reports instead of a separate amendment.
Not every ownership change triggers a state filing. If you’re only reallocating percentages among existing members and your state doesn’t list ownership percentages in its public records, no state amendment is needed. Check your state’s specific requirements.
EIN and Responsible Party Updates
An ownership change can affect the LLC’s federal tax identity. A single-member LLC is a disregarded entity by default; a multi-member LLC is taxed as a partnership. Going from one member to two or more, or from several down to one, changes the classification automatically. In some cases the LLC needs a new Employer Identification Number.4Internal Revenue Service. When to Get a New EIN
Even when a new EIN isn’t required, any change to the LLC’s “responsible party” (the individual who controls or manages the entity’s funds) must be reported to the IRS on Form 8822-B within 60 days.5Internal Revenue Service. Form 8822-B, Change of Address or Responsible Party – Business If a departing member held that role, or a new majority owner is taking it on, that filing is required.
Tax Consequences to Plan For
This is where people get blindsided. A percentage change is not just paperwork; it can create real tax obligations for both the LLC and the individual members.
Selling a Membership Interest
When a member sells all or part of their interest, the IRS treats it the same as selling a partnership interest. The gain or loss equals the difference between what the seller receives and their tax basis in the interest.6Internal Revenue Service. Sale of a Partnership Interest The amount received includes cash, the fair market value of any property, and any reduction in the seller’s share of LLC liabilities.
The general rule is capital gain or loss treatment.7Office of the Law Revision Counsel. 26 USC 741 – Recognition and Character of Gain or Loss on Sale or Exchange There’s an important exception: if the LLC holds unrealized receivables or inventory items, the portion of gain attributable to those assets is taxed as ordinary income.8Office of the Law Revision Counsel. 26 USC 751 – Unrealized Receivables and Inventory Items This catches sellers off guard in service businesses where work is done but not yet billed. Ordinary rates almost always run higher than capital gains rates, and the difference can be significant.
Basis Adjustments for the Buyer
When someone buys in, the default rule is that the LLC’s basis in its own assets stays the same regardless of what the buyer paid. That creates a mismatch: the buyer paid fair market value for their interest, but the underlying assets still carry their old, possibly much lower, tax basis. A Section 754 election lets the LLC adjust basis so the buyer’s share of asset basis matches what they actually paid.9Office of the Law Revision Counsel. 26 USC 743 – Optional Adjustment to Basis of Partnership Property If the LLC has a substantial built-in loss after the transfer, the adjustment is mandatory rather than optional. This is an area where an accountant earns their fee.
Gift Tax on Below-Market Transfers
Transferring an interest to a family member for less than fair market value, or for nothing, is treated as a gift for federal tax purposes. In 2026, the annual gift tax exclusion is $19,000 per recipient.10Internal Revenue Service. Frequently Asked Questions on Gift Taxes If the value of the transferred interest exceeds that amount, the donor must file a gift tax return. Tax may not actually be owed thanks to the lifetime exemption, but the filing requirement still applies. A professional appraisal is strongly recommended for gift transfers, because the IRS scrutinizes valuations involving family members.
Schedule K-1 Reporting
A multi-member LLC taxed as a partnership issues a Schedule K-1 to each member every year. When percentages change mid-year, the K-1 must reflect the timing. Beginning and ending ownership percentages are reported in Item J of the schedule, and if a member’s interest started or ended during the year, the K-1 shows the percentages that existed immediately after admission or immediately before termination.11Internal Revenue Service. 2025 Partner’s Instructions for Schedule K-1 (Form 1065) Income, deductions, and credits get allocated based on these percentages for the portions of the year each member held their interest. Getting this wrong means every member’s individual return is wrong too.
Tax Classification Changes
If the change shifts the LLC between single-member and multi-member status, the default tax classification changes automatically. No election is needed for that default shift. However, if the LLC previously used Form 8832 to elect a different classification (for example, to be taxed as a corporation) and now wants to change that election after a membership change, the IRS generally won’t allow a new election for 60 months after the last one.12Internal Revenue Service. About Form 8832, Entity Classification Election
A Note on Securities Law
One issue most LLC members never think about: membership interests can qualify as securities under federal law. Courts apply a test asking whether the interest involves an investment of money in a common enterprise where profits come primarily from the efforts of others. In a manager-managed LLC where certain members are passive investors, those passive interests can look like securities. If they are, transferring them without complying with federal and state securities registration requirements, or without qualifying for an exemption, creates legal exposure. This rarely matters in small LLCs where every member actively runs the business, but if you’re bringing in a passive investor or restructuring a larger LLC, raise it with an attorney before finalizing the transfer.