Business Entities · Partnerships

Partnership formation (e.g., partnership agreement, general vs. limited partners, capital contributions)

Formation is where the partnership’s two constitutional documents are settled: the agreement, which subchapter K treats as the primary source of the partners’ shares, and the classification, which decides whether subchapter K applies at all. It is also where a permanent and avoidable cost is usually incurred, because the money spent forming a partnership divides into two categories with completely different treatment, and the division is made on a distinction nobody outside tax would think to draw.

The rule

What a partnership is. a syndicate, group, pool, joint venture or other unincorporated organization through or by means of which any business, financial operation or venture is carried on, and which is not a corporation, trust or estate (IRC § 761(a); § 7701(a)(2))^TY2026Verified 2026-08-21IRC §§ 761(a) and 7701(a)(2), read at law.cornell.edu

And when it need not be one. all the members of an unincorporated organization may elect to exclude it from all or part of subchapter K where it is availed of for investment purposes only and not the active conduct of a business, for the joint production, extraction or use of property but not for selling services or the property produced, or by dealers in the circumstances the section sets out (IRC § 761(a))^TY2026Verified 2026-08-21IRC § 761(a), read at law.cornell.edu/uscode/text/26/761

Default classification. unless it elects otherwise, a domestic eligible entity is a partnership if it has two or more members and is disregarded as an entity separate from its owner if it has a single owner (Reg. § 301.7701-3(b)(1))^TY2026Verified 2026-08-2126 CFR § 301.7701-3(b)(1), read at law.cornell.edu/cfr/text/26/301.7701-3

The agreement controls. a partner distributive share is determined by the partnership agreement, except that where the agreement is silent as to an item, or the allocation of an item under the agreement lacks substantial economic effect, the share is determined in accordance with the partner interest in the partnership taking into account all facts and circumstances (IRC § 704(a), (b))^TY2026Verified 2026-08-21IRC § 704(a), (b), read at law.cornell.edu/uscode/text/26/704

And it is not fixed at signature. for the purposes of subchapter K a partnership agreement includes any modification made before or at the time prescribed by law for filing the partnership return for the taxable year, not including extensions, which is agreed to by all the partners or adopted in such other manner as the agreement provides (IRC § 761(c))^TY2026Verified 2026-08-21IRC § 761(c), read at law.cornell.edu/uscode/text/26/761

Contributions. no gain or loss is recognised to a partnership or to any of its partners on a contribution of property to the partnership in exchange for an interest in it (IRC § 721(a))^TY2026Verified 2026-08-21IRC § 721(a), read at law.cornell.edu/uscode/text/26/721

With substituted basis. the basis of a partnership interest acquired by contributing property, including money, is the amount of the money plus the adjusted basis of the property to the contributing partner at the time of contribution, increased by any gain recognised under IRC § 721(b) (IRC § 722)^TY2026Verified 2026-08-21IRC § 722, read at law.cornell.edu/uscode/text/26/722

Formation costs, in general. except as IRC § 709(b) provides, no deduction is allowed to the partnership or to any partner for amounts paid or incurred to organise a partnership or to promote the sale of, or to sell, an interest in it (IRC § 709(a))^TY2026Verified 2026-08-21IRC § 709(a), read at law.cornell.edu/uscode/text/26/709

The one election. $5,000 — a partnership electing under IRC § 709(b) deducts, for the year it begins business, the lesser of its organisational expenses or $5,000, that $5,000 being reduced but not below zero by the amount by which the expenses exceed $50,000; the remainder is deducted rateably over the 180-month period beginning with the month the partnership begins business (IRC § 709(b)(1))^TY2026Verified 2026-08-21IRC § 709(b)(1), read at law.cornell.edu/uscode/text/26/709

What qualifies for it. organisational expenses are expenditures incident to the creation of the partnership, chargeable to capital account, and of a character which if expended incident to the creation of a partnership having an ascertainable life would be amortised over that life (IRC § 709(b)(3))^TY2026Verified 2026-08-21IRC § 709(b)(3), read at law.cornell.edu/uscode/text/26/709

If the partnership does not survive. where a partnership is liquidated before the end of the 180-month amortisation period, any deferred organisational expenses not yet allowed as a deduction may be deducted to the extent allowable under IRC § 165 (IRC § 709(b)(2))^TY2026Verified 2026-08-21IRC § 709(b)(2), read at law.cornell.edu/uscode/text/26/709

Limited partners and self-employment. in computing net earnings from self-employment there is excluded the distributive share of any item of income or loss of a limited partner, as such, other than IRC § 707(c) guaranteed payments to that partner for services actually rendered to or on behalf of the partnership to the extent established to be in the nature of remuneration for those services (IRC § 1402(a)(13))^TY2026Verified 2026-08-21IRC § 1402(a)(13), read at law.cornell.edu/uscode/text/26/1402

Current figures

How it works in practice

A partnership exists for tax purposes on facts rather than on paperwork. IRC § 761(a) reaches any syndicate, group, pool, joint venture or other unincorporated organisation through which a business, financial operation or venture is carried on and which is not a corporation, trust or estate — so two people conducting a venture together and dividing the profits have a partnership whether or not they signed anything, and whether or not they know it. The classification regulations then confirm it: a domestic eligible entity with two or more members is a partnership unless it elects otherwise.

The election out of subchapter K is narrow and often misremembered as being available to any small partnership. It is not. The organisation must be availed of for investment only and not the active conduct of a business, or for the joint production, extraction or use of property but not the sale of services or property produced, or by dealers in securities for a short underwriting period — and in every case the members’ income must be adequately determinable without a partnership computation. A trading business cannot elect out however few its partners.

The agreement’s role is stronger in subchapter K than in any other part of the Code. IRC § 704(a) makes the distributive share whatever the agreement says, subject only to the substantial economic effect requirement. And IRC § 761(c) extends “agreement” to any modification agreed by all the partners up to the unextended due date of the return for the year. That gives a genuine and legitimate planning window: an allocation can be settled after the year has closed and the results are known, provided the modification is unanimous and made before the return is due without extensions. Note the exclusion of extensions — a partnership on extension to September cannot modify in August for the prior year.

Formation costs are where money is actually lost, and the distinction is worth stating precisely. An organizational expense is incident to the creation of the partnership itself — drafting the agreement, filing fees, accounting work in setting up the books. A syndication expense is incurred in promoting the sale of, or selling, interests in the partnership — offering memoranda, brokerage, registration, promotional materials. Organizational expenses can be elected into IRC § 709(b) and recovered. Syndication expenses cannot be deducted or amortised by anyone, ever. They sit in nobody’s basis and produce no deduction at any point in the partnership’s life.

That makes the allocation of a single professional fee consequential. A lawyer’s bill covering both the partnership agreement and the offering document should be apportioned, because one half is recoverable and the other is dead. An unapportioned bill invites the whole to be treated as syndication.

The IRC § 709(b) election itself follows the familiar shape: an immediate deduction capped at a fixed figure, that figure phased out dollar for dollar once total expenses pass a higher threshold, and the remainder amortised over 180 months from the month the partnership begins business. Two details matter. The phase-out is against the fixed deduction, not against the amortisation — a partnership with large organizational expenses loses the immediate deduction entirely but still amortises the whole amount. And the period runs from when business begins, not from formation, which for a partnership that organises in one year and starts trading in the next is a different date.

Finally, general partnergeneral partnerA partner who takes part in managing a partnership's business and bears personal liability for the partnership's debts. and limited partnerlimited partnerA partner who invests in a partnership but doesn't take part in managing it, and whose liability for the partnership's debts is limited to what they invested. status is a matter of the governing State law and the agreement, and its tax consequence sits almost entirely in self-employment income. A general partner’s distributive share from a trade or business is self-employment income; a limited partner’s distributive share “as such” is excluded, though guaranteed paymentguaranteed paymentA payment a partnership makes to a partner for services or for the use of capital, fixed without regard to whether the partnership actually had income, and taxed to that partner as ordinary income.s for services actually rendered are carved back in. That single difference is usually the largest tax consequence of the choice, and it is the one most often assumed rather than analysed.

Scenarios

How this has changed

The IRC § 709(b) election took its current form in 2004, when the fixed immediate deduction with a phase-out replaced a regime under which organizational expenses could only be amortised, over a shorter minimum period of 60 months. Two changes came together: the immediate deduction was created, and the amortisation period was lengthened to 180 months to match the treatment of start-up expenditures. Material describing a 60-month write-off is pre-2004, and it is worth noticing that the change is unfavourable for a partnership with large organizational costs and favourable only for one with small ones.

The classification background changed earlier and more fundamentally. Before 1997 whether an unincorporated organisation was a partnership or an association was decided by the corporate characteristics test, and formation documents were drafted to control the answer. Since the check-the-box regulations the answer is a default with an election, and the drafting that once mattered for classification no longer does. Old partnership agreements still contain provisions written for that purpose.

Nothing in IRC § 761 has been amended in a way that affects this topic, except the 2015 insertion at the end of § 761(b) dealing with gift-derived capital interests, which belongs to family partnerships rather than to formation.

Exam focus

The recurring computation is the IRC § 709(b) election. Learn it as three steps: the immediate deduction is the lesser of the expenses or the fixed amount; that fixed amount is reduced dollar for dollar by the excess of the expenses over the higher threshold; and everything not immediately deducted amortises over 180 months from the month business begins. Questions almost always set the expenses just above or just below the phase-out point.

The second reliable shape offers a list of costs and asks which are deductible or amortisable. Sort them by what the money persuaded: creating the entity is organizational, selling interests in it is syndication, and syndication gets nothing.

Expect at least one question on whether an arrangement is a partnership at all. The answer is usually yes, because IRC § 761(a) is broad and the classification default supplies partnership status without an election. And a question offering the IRC § 761(a) election out is usually testing whether the candidate knows it is unavailable to an active business.

Check yourself

1. A partnership incurs $4,200 of organizational expenses and begins business in November 2026. It makes the IRC § 709(b) election. What may it deduct for 2026?

Answer: the whole $4,200. The immediate deduction is the lesser of the organizational expenses or the fixed statutory amount, and $4,200 is less than that amount. The phase-out does not apply because the expenses are far below the higher threshold, and there is no remainder to amortise.

2. A partnership pays $40,000 for a private placement memorandum used to attract limited partners. How is it treated?

Answer: it is not deductible or amortisable at all. IRC § 709(a) denies any deduction to the partnership or to any partner for amounts paid to promote the sale of, or to sell, an interest in the partnership, and the IRC § 709(b) election reaches only organizational expenses as defined in IRC § 709(b)(3). Syndication cost is a permanent loss.

3. A calendar-year partnership extends its 2026 Form 1065 to September 2027 and, in July 2027, all partners agree in writing to modify the 2026 allocation. Is the modification effective for 2026?

Answer: no. IRC § 761(c) includes modifications made before or at the time prescribed by law for filing the return for the taxable year, “not including extensions”. The unextended due date was 15 March 2027, so a July modification is outside the window however unanimous.

4. Three individuals pool capital solely to hold a portfolio of listed securities, with no active business, and each can compute their own income from the portfolio without a partnership computation. May they elect out of subchapter K?

Answer: yes. IRC § 761(a) permits all the members of an unincorporated organisation to elect to exclude it from all or part of subchapter K where it is availed of for investment purposes only and not for the active conduct of a business, provided the members’ income can be adequately determined without a partnership computation. Both conditions are met.

5. Two people carry on a courier business together, share the profits, and have never signed an agreement or filed anything. What return is due?

Answer: a Form 1065. IRC § 761(a) defines a partnership to include any unincorporated organisation through which a business or venture is carried on, and the classification rules treat a domestic eligible entity with two members as a partnership by default. No document is needed to create the obligation, and the IRC § 761(a) election out is unavailable because the venture is an active business.