Boutique Tax Strategy · White Paper

The S-Corp + Multi-Member LLC Partnership Strategy

An optimized structure for multi-member LLCs where every owner is an active partner: each holds their interest through their own S-corporation - cutting self-employment tax while keeping independent, private tax planning.

When a business is owned by several active partners through a multi-member LLC, each partner normally pays self-employment tax on their entire share of the profits. This strategy changes who the partner is: instead of owning the LLC interest personally, each owner holds it through their own S-corporation. The LLC keeps operating the business as a partnership, but each owner’s profit now flows into their S-corp - where only a reasonable salary bears employment tax and the rest passes through as distributions that do not. Because every partner controls their own S-corp, each can run their own compensation, deductions, retirement, employees, and other ventures independently - without entangling the other partners.

Under IRC §1402(a), a partner’s distributive share of a partnership’s trade-or-business income is generally net earnings from self-employment. There is a “limited partner” exception in §1402(a)(13) - but it does not help active owners. In Renkemeyer and, more recently, Soroban Capital, the Tax Court applied a functional test and held that members who actively work in the business are not “limited partners” for this purpose, so their shares stay subject to self-employment tax. For an operating MM LLC whose owners all work in the business, that means the full distributive share is exposed.

The operating company stays a single multi-member LLC taxed as a partnership. What changes is ownership: each membership interest is held by that partner’s wholly-owned S-corporation rather than by the individual. The LLC issues its Schedule K-1 to the S-corp, not to the person.

Here is the key mechanic - how the self-employment exposure "passes" to the S-corp. If you were the partner directly, your share of the operating profit would be net earnings from self-employment under IRC §1402(a), and you would owe self-employment tax on all of it. When your S-corp is the partner instead, the partnership allocates that same profit to the S-corp on a Schedule K-1 - and an S-corporation’s flow-through income is simply not self-employment income to its shareholder (Rev. Rul. 59-221). The character that creates the self-employment tax never attaches at your level. The S-corp then pays you a reasonable salary - which bears ordinary payroll tax - and the rest reaches you as distributions that are not subject to self-employment tax. In effect, a self-employment-tax exposure on your whole share is converted into a defined payroll-tax cost on your reasonable wage. That salary is mandatory: the IRS recharacterizes distributions as wages if it is too low (Rev. Rul. 74-44).

Not every partner has to participate. The structure works partner-by-partner: one owner can hold through an S-corp while another holds their interest directly. Each partner decides based on their own income and goals, so a partnership can mix direct and S-corp members without forcing one approach on everyone.

In practice this structure shows up most often in professional service firms - medical and dental practices, law firms, and CPA firms - where several high-earning, actively working owners share one operating entity. The leading example is a CPA firm: in Watson v. United States, the owner held his interest in the accounting partnership through an S-corporation, and the only issue the IRS pressed was whether his salary was reasonable - not the structure itself.

But it is not limited to licensed professionals. Any profitable, multi-owner operating business whose partners are active in the work - agencies, contractors, group ventures, and other partnerships - can use the same approach. What matters is active owners, meaningful earnings, and a real reason for each S-corp to exist, not the industry label.

• !Each S-corp must pay its owner reasonable compensation; paying too little invites the IRS to recharacterize distributions as wages (Rev. Rul. 74-44).
• !No court or IRS ruling has applied self-employment tax to a partnership interest held by an S-corp at the shareholder level - in Watson, the only fight was reasonable salary - but that protection depends on each S-corp being a real business (its own bank account, contracts, and records), not a paper shell.
• !The savings are meaningful mainly once earnings exceed the Social Security wage base and payroll taxes are a real cost - it is not for every partnership.
• !The partnership/operating agreement must permit entity members, and each S-corp owner must be an eligible S-corporation shareholder (IRC §1361).
• !Payroll, separate returns (Form 1120-S per partner), and added administration are real costs that have to be worth the savings.
• !Active members generally cannot rely on the “limited partner” self-employment exclusion (Renkemeyer; Soroban) - which is the very reason this structure exists.
• !Interactions with the §199A QBI deduction, state tax, retirement plans, and licensing should be modeled before implementing.

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