November 10, 2026
Many investors do not own a business or a building directly. They own an interest in a fund or holding partnership, which in turn owns interests in several operating partnerships, which may own still other entities. Each Schedule K-1 in that chain reports income, losses, and footnotes, and the investor's return has to fit all of it together. The passive activity rules are where these structures most often go wrong, because the key determinations are made at different levels of the chain.
This briefing walks through the questions to ask when a client holds interests through tiered partnerships: how activities are grouped, who must materially participate, how interest paid between related entities is treated, and two reporting areas that often surprise people, PFICs and Section 704(c).
Section 469 applies activity by activity, so the first question is always what counts as an "activity." Treas. Reg. §1.469-4 lets taxpayers group trade or business and rental operations that form an appropriate economic unit, based on facts such as common control, common ownership, geographic location, and interdependence.
In a tiered structure, the order matters. Under Treas. Reg. §1.469-4(d)(5)(i), each partnership (and each S corporation) groups its own activities first. The partner may then group those activities with each other, with activities the partner conducts directly, and with activities conducted through other entities. What the partner may not do is split apart activities that an entity has already grouped together.
Several practical points follow:
The partnership does not decide whether you materially participate. That determination is made for each individual partner, for each activity, for each year, under the seven tests in Temp. Treas. Reg. §1.469-5T(a), such as 500 hours of participation, or more than 100 hours and not less than anyone else. Under Temp. Treas. Reg. §1.469-2T(e)(1), the character of income and loss passed through to you depends on your participation in the activity during the entity's taxable year.
For tiered structures, that has some consequences:
Tiered structures often move money between related entities and their owners. Picture an upper-tier partnership that lends cash to a lower-tier partnership running a passive rental. The lower-tier partnership's interest expense flows to the investors as a passive deduction, while the matching interest income flows up as portfolio income. Without a special rule, the same investors would have passive losses they cannot use and portfolio income they must pay tax on, all from paying interest to themselves.
Treas. Reg. §1.469-7, issued under the authority in Section 469(l), addresses this. For lending between a taxpayer and a passthrough entity in which the taxpayer owns a direct or indirect interest, and for loans between identically owned passthrough entities, a portion of the interest income is recharacterized as passive activity gross income to match the passive interest deduction. The regulation's examples include a loan from an upper-tier partnership to a lower-tier partnership, so the rule reaches indirect ownership through tiers. It applies only to interest income and expense recognized in the same taxable year, and a passthrough entity can elect out under Treas. Reg. §1.469-7(g) by attaching a statement to its return.
On the investor's return, this usually shows up as a K-1 footnote identifying self-charged interest. If the footnote is missing and you know related-party loans exist, ask for the information before filing.
Investment and fund partnerships sometimes hold shares of foreign mutual funds or other passive foreign investment companies (PFICs). Under Section 1298(a)(3), PFIC stock owned by a partnership is treated as owned proportionately by its partners, so a U.S. partner can be an indirect PFIC shareholder several tiers removed.
The Form 8621 filing rules in Treas. Reg. §1.1298-1 depend on who sits in the chain:
The stakes are real. Under Section 6501(c)(8), failing to file a required Form 8621 can keep the statute of limitations open for the return.
When property with a built-in gain or loss is contributed to a partnership, Section 704(c) requires that the built-in amount be allocated back to the contributing partner. Tiered structures complicate this. Treas. Reg. §1.704-3(a)(9) provides that if a partnership contributes Section 704(c) property to a lower-tier partnership, or a partner contributes an interest in a partnership holding such property to an upper-tier partnership, the upper-tier partnership must allocate its share of the lower-tier items from that property in a way that takes into account the contributing partner's remaining built-in gain or loss.
Revaluations add another layer. When a partnership revalues its assets, for example when a new investor is admitted, the resulting "reverse" Section 704(c) amounts must be tracked as well. For investors, the practical effect is that allocations of depreciation and gain can differ from ownership percentages for reasons that trace back several tiers. When a K-1 shows allocations that do not match the economic deal, Section 704(c) is often the explanation.
When an interest in an upper-tier partnership is sold, a Section 743(b) basis adjustment reaches the lower-tier partnership's assets only if the lower-tier partnership also has a Section 754 election in effect, as described in Rev. Rul. 87-115. Buyers of interests in tiered structures should confirm the election status at every level.
If you hold investments through layered partnerships and want confidence that your passive activity and reporting positions hold together, schedule a consultation with SMB CPA Group. You can also contact us, learn about our custom scope of work for partnership and investment structures, or review our pricing.
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SMB CPA Group