Changing ownership percentage in an LLC is an amendment to the operating agreement, and the arithmetic of it is the part owners most often get wrong: one member's share cannot change on its own, because every share is a part of the same hundred. When capital comes in at a valuation, when a member buys part of another's interest, or when the members simply agree a new split, every percentage moves and the agreement records the new schedule. This page walks how an LLC ownership percentage is set and re-cut, works an example, and points at the free amendment worksheet on this site that works the new shares and everyone's dilution from your figures. It publishes no clause text and no advice on the transfer clause itself.
Where the ownership percentage comes from in the first place
Most agreements set each member's share from their capital contribution over the total, so $50,000 of $100,000 is 50%. Members can agree otherwise and record it. Either way the ownership clause is a schedule of percentages that sums to a hundred, and changing any one of them is a change to all of them, which is why the re-cut is worked as a whole schedule and not as a single edited number.
How to change ownership percentage of an LLC when capital comes in
A new contribution at an agreed valuation buys a share of the enlarged company. If the company is valued at $200,000 and a member puts in $50,000 more, the new capital is a fifth of the $250,000 total and the other members' shares shrink by exactly that fifth of themselves. The amendment worksheet works the new share and each member's dilution from the valuation and the contribution you enter, so the amended schedule is the arithmetic and not a negotiation about a number nobody worked.
Changing percentages by agreement or by a buy-out between members
When members agree a new split without new money, or one member buys part of another's interest, the schedule changes by the amount transferred: 10% moving from a 50% member to a 20% member leaves 40% and 30%. The worksheet shows the schedule before and after so the amendment records both. The transfer clause that governs whether the move is allowed, and on what terms, is the agreement's own and counsel's; the worksheet works the numbers once the members have decided.
Recording the change so the percentages stay right
An amended schedule that lives in an email is the next dispute. LLC Lane Pro keeps every member's share against the company with the amendment that changed it and its date, and exports the history when the bank, the accountant or a buyer asks. The free worksheet works one re-cut at a time with no account; the paid plan is for a company whose ownership has changed more than once.
Questions people ask about changing ownership percentage in llc
Can I change one member's ownership percentage in an LLC without changing the others?
No. The shares sum to a hundred, so a change to one is a change to all; the worksheet works the whole schedule after the change from the figures you enter.
How do I change LLC ownership percentage when a new member buys in?
Enter the company's agreed valuation and the new member's contribution on the amendment worksheet; it works the new member's share and every existing member's dilution, which the amendment then records.
Is changing ownership percentage a legal process or arithmetic?
Both. The transfer and amendment clauses of the agreement, and any state filing, are counsel's question and this site does not answer it. The re-cut of the shares is arithmetic, and it is worked here free.