ARTICLE | August 18, 2026
If your business is structured as a limited partnership -- or if you are a partner in one -- a recent federal court ruling could have a direct impact on how much self-employment tax you owe. The United States Court of Appeals for the Fifth Circuit just rewrote the rules, and for business owners in Texas, Louisiana, and Mississippi, the change is immediate.
What Changed -- and Why It Matters
For years, a key question in partnership taxation has been unclear: when does a limited partner's share of business income qualify for the self-employment (SE) tax exclusion under Internal Revenue Code Section 1402(a)(13)? The stakes are significant -- SE tax runs as high as 15.3%, so for partners in profitable partnerships, the difference between qualifying and not qualifying for the exclusion can add up to tens of thousands of dollars per year.
In August 2026, the Fifth Circuit issued its decision in K Alain, L.L.L.P. v. Commissioner, establishing a brand-new standard. Previously, the Tax Court had ruled in Soroban Capital Partners that only true "passive investors" could claim the exclusion -- a strict standard that left little room for limited partners who also performed services for the business. The Fifth Circuit rejected that approach. The court's new rule asks a more practical question: does the partner play a significant role in managing or running the business? If the answer is no, the partner may still qualify for the SE tax exclusion even if they perform some services for the partnership. This is a meaningful distinction for business owners who wear multiple hats -- contributing both capital and professional expertise to their firms.
What This Means for Your Business
The ruling creates both opportunity and responsibility. On one hand, limited partners who provide non-managerial services -- such as technical, advisory, or administrative work -- may now have a stronger case for excluding their distributive share of partnership income from SE tax within the Fifth Circuit's jurisdiction. On the other hand, the court was clear that this is a facts-and-circumstances test. Partners who supervise staff, negotiate client engagements, control day-to-day operations, or make key business decisions are likely to be considered managers -- and their income will remain subject to SE tax. The bottom line: your partnership agreement, your job title, and your actual day-to-day activities all matter. Structuring your partnership correctly, documenting roles carefully, and ensuring that management authority is properly allocated between general and limited partners has never been more important.
Don't Wait to Get Clarity
This ruling is a signal, not a green light. The legal standard is new, it is still evolving, and the IRS is certain to scrutinize positions taken under it closely. If you have a limited partnership -- or if your professional service firm, consulting business, or family enterprise is structured as an LLP or LLLP -- now is the time to review your structure and your tax position with an experienced advisor.
At KHA Accountants, PLLC, our tax team has deep experience helping closely-held businesses and professional service firms navigate exactly these kinds of complex, high-stakes tax issues. We stay ahead of developments like this one so you don't have to. Contact us today to schedule a conversation with one of our advisors and make sure your partnership structure is working as hard as it should for you.
Want to dig deeper into the legal details? Read the full analysis at Current Federal Tax Developments.