Taxable REIT Subsidiaries (TRS) and the 25% Cap

Introduction

A REIT cannot operate a hotel, run a senior housing community, or sell network services without putting its tax election at risk: those are operating businesses, and their income is not "rents from real property." Yet many of the most valuable real estate assets are inseparable from an operating business. The Taxable REIT Subsidiary (TRS) is how the structure resolves that tension. It is a C-corporation the REIT owns, pays standard 21% federal corporate tax on its income, and parks the non-qualifying activity so it never touches the parent REIT's qualifying-income basket. The structural reasons a REIT exists at all are exactly what make this workaround necessary.

The TRS was created by the REIT Modernization Act of 1999 and expanded under the REIT Investment Diversification and Empowerment Act of 2007 (RIDEA). Lodging REITs use it to hold hotel operating businesses; healthcare REITs use it under RIDEA to capture upside on senior housing communities; data center REITs use it for network and interconnection services; net lease REITs use it to hold whatever non-real-estate sub-businesses come attached to a broader acquisition.

The TRS structure has a hard ceiling: total TRS investment cannot exceed a defined percentage of REIT total assets. The cap was 20% under earlier rules; the One Big Beautiful Bill Act (OBBBA) raised the cap to 25% effective for taxable years beginning after December 31, 2025, restoring the higher threshold that applied before 2018. The increase matters because several large REITs (lodging especially) operate close to the cap and the 5-percentage-point expansion gives material operational flexibility on TRS-housed business growth without forcing structural workarounds.

A TRS is a standard C-corporation that elects TRS status jointly with the parent REIT. The election is filed on Form 8875. Once elected, the TRS pays corporate income tax on its earnings at the standard 21% federal rate (plus state corporate taxes), so the income it shelters from the REIT carries a full corporate-level tax cost that the rest of the REIT avoids entirely. That tradeoff is the whole point: a permanent 21% drag on the operating slice in exchange for keeping the pass-through tax treatment on the much larger real estate slice. The TRS can distribute after-tax earnings as dividends to the parent REIT, where the dividends qualify for the 95% income test (but not the 75% income test, since TRS dividends are not "rents from real property").

Taxable REIT Subsidiary (TRS)

A C-corporation owned directly or indirectly by a REIT that has jointly elected TRS status with the parent REIT under Section 856(l) of the Internal Revenue Code. The TRS pays standard 21% federal corporate income tax on its income and can engage in business activities (operating businesses, services, development for sale) that the REIT itself cannot conduct without jeopardizing REIT qualification. Total TRS investment is capped at 25% of the REIT's total assets (effective for tax years beginning after December 31, 2025; previously 20%).

The TRS can engage in activities the REIT itself cannot, including:

The TRS Lease Structure (Lodging Example)

The cleanest illustration of TRS economics is a lodging REIT. The REIT owns the hotel real estate (the building, the land, the FF&E that is structurally affixed). The TRS leases the hotel from the REIT under a qualifying lease at a market-rate rent and operates the hotel: hires staff, manages reservations, runs the food and beverage operation, pays operating costs. The REIT receives rental income from the TRS (qualifying for both the 75% and 95% income tests). The TRS keeps the operating profit or loss on the hotel after paying the rent and its operating expenses; the TRS pays corporate tax on that profit.

The healthcare REIT sector uses a specific TRS-based structure called RIDEA (REIT Investment Diversification and Empowerment Act of 2007) to capture operating upside on senior housing and certain other healthcare property types. Before RIDEA, healthcare REITs were limited to triple-net leases with operators, which produced steady rental income but no participation in the operating upside. RIDEA allows the REIT to share in the operator's net operating income directly.

RIDEA (REIT Investment Diversification and Empowerment Act of 2007)

Federal tax legislation that lets healthcare REITs participate in the operating economics of healthcare and senior housing properties through a TRS-based structure rather than being limited to pure triple-net leases. A REIT-owned TRS leases the property from the REIT and contracts with a third-party operator-manager; the TRS retains residual NOI above the management fee, giving the REIT economic upside on operating performance.

The mechanic: the REIT owns the property and contributes it to a TRS-leased operating structure. The TRS hires a third-party manager (Brookdale, Atria, Sunrise, or another specialist senior housing operator) to run the day-to-day operations under a management agreement. The TRS pays the manager a management fee plus performance-based incentives, and the TRS retains the residual NOI after the management fee. The REIT receives the TRS lease rent plus, through TRS earnings retention or dividends, the residual NOI economics.

Beyond lodging and healthcare, TRSs appear across most REIT sub-sectors where any meaningful non-real-estate business activity is housed inside the REIT structure:

The 25% TRS cap binds most aggressively at lodging REITs because the operating-business value can be significant relative to the property value, and the cap can constrain growth strategies that would otherwise allocate more capital to the TRS-housed business. The OBBBA increase to 25% (from 20%) effective 2026 was specifically advocated by Nareit and supported by lodging and healthcare REITs as a structural-flexibility win.

The 25% cap is measured at the fair market value of the TRS securities (stock and debt) held by the REIT, divided by the REIT's total assets, at the end of each quarter. This is the same testing rhythm as the broader REIT asset tests, and the cure mechanism is identical: a 30-day window after quarter-end, then an extended cure regime requiring a reasonable-cause showing, disposition of the offending assets within 6 months, and a penalty tax.

A common point of confusion is the separate 5% single-issuer cap. That rule applies to non-REIT, non-TRS issuers: a REIT cannot hold more than 5% of total assets in any single such issuer's securities. The 25% cap applies specifically to TRS investments. They sit side by side in the asset tests but govern different buckets, and TRS holdings are explicitly carved out of the 5% test precisely so the TRS structure can function.

The most frequent mistake on this topic is treating the TRS as a free pass to operate anything. It is not. Every dollar of operating profit inside the TRS is taxed at 21% before it reaches the REIT, the TRS lease must be priced at arm's length, and the whole TRS investment is capped at a quarter of total assets. The TRS earns its place when the operating economics it captures (RIDEA upside, hotel operating profit, data center services margin) are worth more to shareholders than the corporate tax drag and the cap pressure they create. That cost-benefit judgment, not the bare fact of the structure, is what separates a real understanding of the TRS from a textbook one.