When you contribute services to a partnership in exchange for an ownership stake, the tax treatment of that contribution of services to a partnership depends on which kind of interest you receive. A capital interest is taxable compensation at the moment it’s granted (or when it vests), reported as ordinary income at fair market value. A profits interest, if it qualifies under an IRS safe harbor, is generally not taxable at grant at all. Everything else that follows, from your starting basis to your self-employment tax bill to how a future sale is taxed, flows from that single choice.
How to Tell Which Kind of Interest You Received
Practitioners use what’s called the liquidation test. Picture the partnership selling everything at fair market value and shutting down the instant after your interest was granted. If you’d walk away with a share of the existing assets, you hold a capital interest. If you’d walk away with nothing because your interest only entitles you to a share of future earnings and appreciation, you hold a profits interest.
A simple example. Partner A puts in $100,000 cash, and you contribute services for a 20% stake. Immediate hypothetical liquidation: if you get $20,000 of that cash, it’s a capital interest. If Partner A takes the full $100,000 back and you get zero, it’s a profits interest.
Because this test turns on liquidation entitlement, the partnership agreement’s capital account rules do the actual work. Those rules should conform to Treasury Regulation Section 1.704-1(b)(2), because the capital accounts are what determine each partner’s payout on a hypothetical wind-up.1eCFR. 26 CFR 1.704-1 – Partner’s Distributive Share
Tax Treatment of a Capital Interest Received for Services
A capital interest granted for services is a taxable event. Section 83 of the Internal Revenue Code treats any property transferred in exchange for services as compensation, and a capital interest that carries immediate liquidation value counts as property. You include the fair market value of the interest in gross income as ordinary compensation for the year the interest becomes either freely transferable or no longer subject to a substantial risk of forfeiture, whichever comes first.2Office of the Law Revision Counsel. 26 U.S. Code 83 – Property Transferred in Connection With Performance of Services
If the interest is subject to vesting, taxation is deferred until vesting. A three-year vesting condition, for example, pushes recognition to year three, and the taxable amount is the fair market value at that later date, not at grant. That timing can hurt if the partnership appreciates during the vesting period, because the entire runup gets taxed as ordinary income rather than capital gain.
The partnership gets a corresponding compensation deduction equal to the amount you include in income, taken in the partnership tax year that overlaps with or includes the year you recognize the income.
The Section 83(b) Election
If your capital interest is unvested, Section 83(b) lets you elect to recognize the income immediately, at the grant-date fair market value. Making the election has two benefits: you lock in a potentially lower taxable amount now, and you convert all future appreciation into capital gain rather than ordinary income when you eventually sell.
The deadline is unforgiving. You must file the election with the IRS within 30 days of the grant date. If day 30 lands on a weekend or holiday, it moves to the next business day. There is no relief for a late filing.3Internal Revenue Service. Instructions for Form 15620, Section 83(b) Election
The catch that stops experienced advisors: if you elect, pay the tax, and then forfeit the interest because you leave before vesting, Section 83(b) gives you no loss deduction for the forfeiture. The tax you paid is gone. That risk is what makes the election a bet on your own tenure with the partnership.
Tax Treatment of a Profits Interest Received for Services
A profits interest granted for services is generally not taxable when received. The favorable treatment comes from Revenue Procedure 93-27, later refined by Revenue Procedure 2001-43. Under this safe harbor, the IRS will not treat the receipt of a profits interest as a taxable event for either the partner or the partnership.4Internal Revenue Service. Revenue Procedure 2001-43
Three conditions kick a profits interest out of the safe harbor:
- The interest relates to a substantially certain and predictable stream of income from partnership assets, such as high-quality debt securities or a long-term net lease.
- The service partner sells or disposes of the interest within two years of receiving it.
- The interest is in a publicly traded partnership.
If any of these applies, the safe harbor is unavailable and the IRS can assert that the fair market value of the profits interest is immediately taxable as ordinary income. Most private service partnerships clear all three without difficulty.
Unvested Profits Interests
Revenue Procedure 2001-43 filled a gap that 93-27 left open: what happens when a profits interest vests over time. The IRS confirmed that the safe harbor still applies to an unvested profits interest, so long as the partnership and all partners treat the service provider as the owner of the interest from the grant date. That means issuing a Schedule K-1 and allocating the partner’s distributive share of income, gain, loss, deduction, and credit from day one, not from the vesting date.
Because the service partner is treated as an owner immediately, no Section 83(b) election is needed for a qualifying profits interest. Neither the grant nor the later vesting event is taxable. One tradeoff: neither the partnership nor any partner may deduct any amount as wages or compensation for the fair market value of the unvested profits interest at grant or at vesting.
Your Starting Basis in the Partnership Interest
Your outside basis is your tax investment in the interest. It determines how much loss you can currently deduct and how much gain you’ll recognize on a sale, so it matters from day one.
If you received a capital interest, your initial outside basis equals the ordinary income you recognized. Report $50,000 of compensation income on the grant, and your basis starts at $50,000. That basis prevents double taxation when you eventually sell.
If you received a qualifying profits interest, you recognized no income, so your initial outside basis is zero. Zero basis has a practical consequence: you cannot currently deduct any partnership losses passed through to you. Suspended losses carry forward until your basis rises enough to absorb them.
How Partnership Debt Builds Basis
This is where profits-interest partners often leave money on the table. Under Section 752, any increase in your share of partnership liabilities is treated as a deemed cash contribution and raises your outside basis.5Office of the Law Revision Counsel. 26 U.S. Code 752 – Treatment of Certain Liabilities
For a partner starting at zero, picking up a share of partnership debt can be the difference between deducting current-year losses and watching them suspend. How much debt you’re allocated depends on the type. Recourse debt goes to the partner who bears the economic risk of loss. Nonrecourse debt generally follows the partners’ profit-sharing ratios, so a service partner with a meaningful profit share typically picks up a proportionate slice.
Going forward, basis rises with your share of partnership income and any capital contributions, and falls with distributions and loss allocations.
Self-Employment Tax on Your Distributive Share
A service partner’s distributive share of ordinary partnership income is generally subject to self-employment tax. Partners are not employees of the partnership; they are self-employed for federal tax purposes, so no employer withholds FICA on their behalf.6Internal Revenue Service. Self-Employment Tax and Partners
The rate is 15.3%: 12.4% for Social Security on net self-employment income up to $184,500 in 2026, and 2.9% for Medicare on all net self-employment income with no cap. Net self-employment income above $200,000 (single) or $250,000 (joint) also carries an additional 0.9% Medicare surtax.
Section 1402(a)(13) carves out limited partners. A limited partner’s distributive share is excluded from self-employment income, except for guaranteed payments received for services actually performed for the partnership.7Office of the Law Revision Counsel. 26 USC 1402 – Definitions
Who counts as a “limited partner” for this rule has been litigated for years, and it matters for service partners structured as limited partners or LLC members. A January 2026 Fifth Circuit ruling held that a limited partner is simply a partner with limited liability under state law, rejecting the IRS position that active participation strips the exemption. That ruling currently applies in Texas, Louisiana, and Mississippi. Other circuits may follow different standards, so if you’re a service partner in an LLC taxed as a partnership, the self-employment tax treatment of your distributive share can turn on where you live.
The Three-Year Holding Period for Carried Interest
Service partners in certain investment partnerships face an extra rule. Under Section 1061, if you received your interest in connection with performing services in an “applicable trade or business,” any long-term capital gain attributable to that interest gets recharacterized as short-term capital gain unless the underlying assets were held for more than three years. Short-term gain is taxed at ordinary rates, which can be a meaningful step up from the long-term rate.8Office of the Law Revision Counsel. 26 USC 1061 – Partnership Interests Held in Connection With Performance of Services
An applicable trade or business is one that raises or returns capital and either invests in or develops “specified assets” such as securities, commodities, real estate held for rental or investment, and derivatives. Section 1061 mainly targets private equity, hedge fund, and real estate fund managers.
Two exceptions matter. Section 1061 doesn’t apply to a partnership interest held directly or indirectly by a corporation. And a capital interest that gives you a right to share in partnership capital proportionate to your capital contribution, or to value already taxed under Section 83, is excluded from the definition of an applicable partnership interest.
If you hold both a carry (profits interest) and a capital interest from co-investing your own money, the final regulations require the partnership’s books to separately identify allocations attributable to contributed capital from those attributable to the carried interest. Without that recordkeeping, the entire interest can be treated as subject to the three-year rule.
What the Partnership Agreement Needs to Say
Nothing above works reliably without the right language in the partnership agreement. A few provisions matter specifically for service contributions.
- Capital account maintenance consistent with Treasury Regulation Section 1.704-1(b)(2). For a profits interest, document that the service partner’s capital account starts at zero, confirming the interest has no liquidation value at grant.
- For a profits interest, an explicit statement that the partnership and all partners are adopting the safe harbor of Revenue Procedures 93-27 and 2001-43, and that the service partner will be treated as the owner from the grant date.
- A clear vesting schedule when one applies. For a capital interest, this drives Section 83 timing. For a profits interest, allocations still start day one despite any vesting restriction.
- Specific goodwill language if you want future goodwill payments on exit to receive favorable treatment. Silence in a service partnership defaults toward ordinary income.
When a capital interest is granted, the partnership needs a third-party valuation of the fair market value at the grant date. That valuation supports both the ordinary income you report and the deduction the partnership claims. Private partnership interests often carry discounts for lack of marketability and minority position, and while those discounts can reduce the taxable amount, aggressive figures draw IRS scrutiny.
The partnership files Form 1065 and issues each partner a Schedule K-1 that reflects the structure chosen. A profits interest shows a zero starting capital account. A capital interest shows the ordinary income recognized and the corresponding capital account. If you filed a Section 83(b) election, keep a copy with your records for the year of the grant.3Internal Revenue Service. Instructions for Form 15620, Section 83(b) Election