To add a member to an LLC, you need approval from the current members under your operating agreement, an amended operating agreement reflecting the new ownership, a state amendment filing if your state requires one, and updates to the IRS and your bank. Depending on whether you were a single-member or multi-member LLC before the change, the tax consequences can be significant.
Get Approval From the Current Members
Your operating agreement controls how new members are admitted. Most agreements set a voting threshold, often unanimous consent or a supermajority. If the agreement is silent, the default rule in most states, based on the Revised Uniform Limited Liability Company Act, requires the consent of all existing members. A lower threshold in your agreement, such as a simple majority, overrides that default.
Once the vote passes, document it in a written resolution signed by every member who voted in favor. The resolution should name the incoming member, describe the ownership interest being granted, and note the date of the vote. Keep it with your company records as proof the addition was properly authorized.
Amend the Operating Agreement
The operating agreement is a private document, not filed with the state, but it is the most important record of what each member owns and owes. After the vote, draft an amendment that addresses at least three points:
- Capital contribution. The cash, property, or services the new member is providing in exchange for their interest.
- Profit and loss allocation. The percentages assigned to the new member and the updated percentages for existing members.
- Voting rights. Whether the new member votes in proportion to their ownership or under different terms.
If the new member is earning ownership over time rather than paying in upfront, a vesting schedule can protect the company. A common structure sets a minimum period, sometimes called a cliff, before any interest becomes permanent, with unvested interest returning to the company if the member leaves early.
Adding a member is also a natural moment to review buy-sell provisions covering what happens if any member later leaves, becomes disabled, or dies. A right of first refusal and an agreed valuation method reduce the risk of disputes or forced partnerships with outsiders.
Check Whether Your State Requires a Filing
Many states do not list individual members in the articles of organization, so a membership change stays inside your operating agreement and never reaches the Secretary of State. A few states, such as Arizona, do require articles of amendment when members change. Others collect updated member information through annual or biennial reports instead of a separate amendment.
To confirm what applies to you, check the business filing section of your Secretary of State’s website and look for instructions on articles of amendment or a certificate of amendment for LLCs. If member names were never on your articles of organization to begin with, an amendment filing to add one is usually unnecessary. Even so, you may need to update member information on your next annual report.
File Articles of Amendment if Required
Where a filing is required, the form is typically called Articles of Amendment or Certificate of Amendment and can be downloaded from the Secretary of State’s website. Fields vary, but most amendment forms ask for:
- LLC name. The exact legal name as it currently appears in state records.
- Original filing date. The date the articles of organization were originally filed.
- New member information. Full legal name and address of the person being added.
- Effective date. The filing date or a specified future date.
Filing fees generally run from about $15 to $220 depending on the state. Most states offer online filing, and some offer expedited processing for an extra fee. When the filing is approved, the state returns a stamped or certified copy. Keep it with your amended operating agreement.
Understand the Federal Tax Consequences
Adding a member can change how the IRS treats your LLC, and the biggest shift happens when you go from one member to two. A single-member LLC is treated as a disregarded entity, with income and expenses reported on the owner’s personal return. Once a second member joins, the LLC automatically becomes a partnership for federal tax purposes unless you file Form 8832 to elect corporate treatment.1Internal Revenue Service. Single Member Limited Liability Companies The partnership classification is automatic and requires no special filing.2Internal Revenue Service. Form 8832 Entity Classification Election
As a partnership, the LLC must file Form 1065 each year, due March 15 for calendar-year companies.3Internal Revenue Service. Instructions for Form 1065 The LLC itself does not pay income tax; it passes profits and losses through to the members, each of whom receives a Schedule K-1 to report on their personal return.4Internal Revenue Service. LLC Filing as a Corporation or Partnership Members generally owe self-employment tax on their share of partnership earnings.
If your LLC already had multiple members, the classification does not change. You still need to issue a Schedule K-1 to the new member and adjust the existing members’ K-1s to reflect the new percentages.
Update the IRS Responsible Party if It Changes
The IRS ties each EIN to a “responsible party,” the individual who controls or directs the LLC and its funds. If the new member becomes that person, file Form 8822-B within 60 days of the change.5Internal Revenue Service. Form 8822-B Change of Address or Responsible Party – Business The form requires the new responsible party’s Social Security Number or ITIN.6Internal Revenue Service. Instructions for Form SS-4 Application for Employer Identification Number
Also check whether your state requires updates to state tax registrations or business licenses when ownership changes. Many states link LLC tax accounts to the members on file, and stale information can cause problems with state income tax, sales tax, or employer withholding accounts.
One thing you likely do not need to worry about: as of March 2025, FinCEN exempted all domestic companies from Beneficial Ownership Information reporting under the Corporate Transparency Act. Only foreign entities registered to do business in a U.S. state remain subject to BOI filing.7FinCEN.gov. Beneficial Ownership Information Reporting The exemption came through an interim final rule, so the position could change through future rulemaking.
Notify Your Bank and Update Contracts
Banks need documentation of the membership change before a new member can access accounts or sign for the LLC. Most banks will ask for the amended operating agreement and, where applicable, the filed articles of amendment. Some also want meeting minutes or a resolution signed by the managers or members authorizing the change.8Bank of America. Bank of America Account Ownership Changes Getting this in front of the bank promptly avoids frozen funds or restricted credit access.
Then walk through your contracts. Commercial leases, insurance policies, and professional licenses often contain notice or consent provisions triggered by an ownership change. Updating those relationships when the new member is admitted keeps coverage continuous and heads off breach-of-contract problems later.