Real estate investment trusts have become one of the most discussed structural decisions facing private lending fund managers over the past several years. The appeal is understandable: a single election can deliver meaningful tax savings to investors without requiring additional leverage or portfolio risk. Yet misconceptions about complexity, cost, and eligibility requirements have caused many fund managers to delay a decision that could be generating returns for their investors right now.
This article cuts through the noise and offers a practical, honest analysis of how REITs function within private lending, why the sub-REIT structure has become the dominant approach, and what fund managers need to weigh before making the election.
Why REITs Became Relevant to Private Lending
REITs were not always a natural fit for mortgage funds. For decades, interest income generated by private lenders was classified as ordinary income, which offered little opportunity for tax-advantaged treatment within a REIT structure.
That changed with the Tax Cuts and Jobs Act of 2017, which introduced the 20% Qualified Business Income (QBI) deduction under IRC Section 199A. REIT dividends were specifically made eligible for this deduction, fundamentally altering the calculus for mortgage fund managers. In practical terms, a taxable investor receiving distributions from a REIT-qualified mortgage fund now pays income tax on only 80% of those distributions rather than 100%.
For high-net-worth investors — who represent the core investor demographic in private lending — this is a substantial benefit. The effective marginal rate on fund distributions drops from the top ordinary income rate to approximately 29%, compared to the roughly 37-40% bracket many of these investors occupy. That gap translates directly into higher after-tax returns without a single change to the underlying portfolio.
The Foundational Requirements: What Qualifies a Fund as a REIT
Asset Composition: The 75% Test
At least 75% of a REIT’s total assets must consist of real estate-related assets. For most mortgage funds operating in the private lending space, this requirement is straightforward to satisfy. Mortgage loans secured by real property qualify, as do most other forms of real estate-backed debt instruments.
The analysis becomes more nuanced for funds that hold preferred equity positions, mezzanine loans, or fund-to-fund investments. These instruments may or may not satisfy the asset test depending on how they are structured. A preferred equity arrangement can be documented in a hundred different ways, and whether any given structure qualifies is a fact-specific determination that requires review by qualified legal counsel.
For residential bridge lenders and fix-and-flip lenders, the asset test is rarely a meaningful obstacle. For commercial mortgage funds with more complex capital stack positions, the analysis warrants careful attention.
Income Distribution: The 90% Requirement
A REIT must distribute at least 90% of its taxable income annually. In practice, most mortgage REITs distribute close to 100% because any undistributed income is subject to corporate-level tax — precisely what the structure was designed to avoid.
This distribution requirement has important structural implications. Funds that retain capital for reinvestment, maintain manager carry arrangements, or run complex waterfall structures need to think carefully about how the REIT election interacts with those mechanics. This is a primary driver behind the widespread adoption of the sub-REIT structure discussed below.
Investor Count: The 100-Shareholder Rule
A REIT must have at least 100 distinct shareholders by the second taxable year and must maintain that threshold going forward. This is one area where new fund managers often have unfounded concern. The IRS recognizes that it takes time to build an investor base, and the first full taxable year is entirely exempt from this requirement.
The practical solution most fund managers use is shareholder accommodation services — often called “penguin investors” in industry parlance. These services are registered broker-dealers with large existing investor pools. They can rapidly populate the required 100-investor count by placing small preferred equity positions (typically $1,000 per share) at the REIT level. The annual cost to the fund is approximately $15,000 in preferred dividends, plus ongoing compliance and maintenance fees.
The primary advantages of using accommodation services include speed of deployment (investor count can be established in as little as three business days), predictable ongoing costs, and elimination of the administrative burden of managing 100 individual investors at the REIT entity level.
The Five-and-Fifty Rule: Closely Held Prohibition
No group of five or fewer investors may collectively own 50% or more of the REIT. This rule is tested on a fully diluted basis, looking through all entities to the individual beneficial owners. The five-and-fifty test kicks in during the second half of the second taxable year — for a calendar-year fund, that means compliance is required from July 1 of year two onward.
Two points deserve particular attention here:
Related party aggregation. The IRS treats certain family members as a single investor for purposes of this test. Spouses, parents, and children are aggregated — meaning a husband and wife who hold separate accounts are counted as one investor. Siblings are not aggregated. Fund managers should review their investor pools carefully for related-party relationships, as this is one of the most frequently overlooked compliance issues.
Look-through analysis. If a fund has large institutional investors — pension funds, endowments, fund-of-funds structures — the five-and-fifty analysis looks through those entities all the way to individual beneficial owners. A single large institutional investor may not trigger the rule even if it controls significant capital, precisely because the ownership is ultimately distributed among many individuals.
Losing REIT status due to a five-and-fifty violation carries significant tax consequences. Maintaining compliance requires active monitoring of investor ownership percentages and, in some cases, the contractual ability to redeem investor interests or require additional capital contributions to preserve qualification.
The Sub-REIT Structure: How Private Lenders Do It
Why a Direct Fund-to-REIT Conversion Creates Problems
The straightforward approach — converting the fund itself into a REIT — creates several practical complications that make it unattractive for most private lenders.
First, changing a fund’s tax status requires a member vote, which introduces complexity and delay. Second, funds with carry arrangements or profit-split waterfalls face a specific problem: any undistributed income after the 90% distribution requirement is taxable at the corporate rate. A 10% manager carry that is retained rather than distributed becomes subject to corporate tax, eliminating much of the benefit.
Third, and critically, once a fund is converted to REIT status, it cannot revert. If the fund subsequently fails to meet qualification requirements — whether due to a prohibited transaction, a compliance oversight, or a deliberate strategic decision — there is no clean exit. The REIT election is permanent.
The Sub-REIT Architecture
The dominant solution is establishing a wholly owned subsidiary that makes the REIT election, while the parent fund retains its existing structure as an LLC or limited partnership.
In this arrangement:
- The parent fund remains unchanged, retaining its existing membership interests, waterfall, carry arrangements, and investor agreements
- A subsidiary entity is formed beneath the fund, and that subsidiary makes the REIT election
- Lending assets are assigned down to the subsidiary, which is where the REIT’s income and distribution requirements apply
- The 100-investor count is met at the subsidiary level, typically through accommodation services holding preferred positions
- The fund (as sole common equity owner of the subsidiary) receives distributions that flow up through the waterfall to investors
The result is that investors receive K-1s showing REIT dividend income, which qualifies for the 20% QBI deduction under Section 199A. The income is characterized differently — appearing on the dividend line rather than as ordinary interest income — but it flows through the same fund distribution mechanics investors are accustomed to.
Disposability: The Risk Management Advantage
The sub-REIT structure also provides an important safety valve. If the subsidiary encounters a compliance problem — a prohibited transaction, a qualification failure, or simply a change in strategy — the parent fund can dissolve the subsidiary, move assets back up to the fund level, and continue operating without the REIT election. That exit is not available when the fund itself is the REIT.
Common Misconceptions Addressed
“My fund is too small to benefit”
Early in the adoption of post-2017 REIT structures, there was a conventional view that only funds with $50 million or more in assets under management could justify the cost. That threshold reflected a legitimate concern about proportionality: setup costs (including legal, accounting, and accommodation service fees) can range from $50,000 to $100,000 or more depending on fund complexity.
The math has become more favorable as the industry has gained experience with these structures. Even for a smaller fund, the 20% QBI deduction can deliver 100 to 150 basis points of increased after-tax return in stabilized years, which often offsets costs within the first year. For high-net-worth investors who are above the relevant income thresholds for the QBI deduction on their own (currently phased out above $383,900 for married filing jointly in 2025), the REIT dividend is one of the only available paths to a reduced rate on this type of income.
Starting from scratch is also more cost-effective than converting an existing fund, since a new fund requires less due diligence, no asset migration, and no investor communication about a change in tax structure.
“I need to go public or register with the SEC”
A REIT election is a federal tax classification, not a securities registration event. Funds that offer interests under Regulation D, Regulation A, or state exemptions can add a sub-REIT without altering their offering structure. There is no obligation to list shares, file an S-11, or change the exemption under which investor interests are sold.
“Mortgage REITs cannot foreclose”
This is one of the most persistent misconceptions in private lending. REITs can and do foreclose on defaulted loans. The actual restriction relates to the IRS concept of a “dealer” in real estate. A REIT that repeatedly buys, forecloses, and quickly resells properties in a pattern consistent with a dealer in real estate can trigger prohibited transaction rules, which impose a 100% excise tax on net income from those transactions.
The key is structuring and intent. There are safe harbors available based on the number of sales within a taxable year and the holding period of properties. For most mortgage funds that foreclose only when necessary to protect collateral, staying within these safe harbors is manageable with proper legal and tax guidance. The sub-REIT structure also provides flexibility: assets can be moved to the parent fund prior to certain dispositions if the sub-REIT level treatment is unfavorable.
“Managing the 100-investor requirement is burdensome”
With accommodation services handling the placement and ongoing maintenance of preferred investors at the REIT level, this requirement adds minimal operational burden. The fund manager does not need to recruit, communicate with, or administer the accommodation investors. Even funds with hundreds of millions in assets under management and substantial internal staffing routinely use these services because the set-and-maintain arrangement is simply more efficient than managing 100 individual positions internally.
Additional Tax Benefits Beyond the QBI Deduction
UBTI Blocker for IRA and Retirement Plan Investors
For funds that use leverage — particularly credit facilities — investors holding fund interests through IRAs and other tax-exempt accounts may face Unrelated Business Taxable Income (UBTI) on leveraged returns. UBTI can create unexpected tax liability for investors who specifically chose a tax-deferred vehicle to avoid it.
A REIT election blocks UBTI at the entity level, preventing it from flowing through to investors. For funds with significant retirement account participation or investors in high-income-tax-free states who hold IRAs, this benefit can be as meaningful as the QBI deduction.
Foreign Investor Withholding Advantages
REIT dividends receive preferential treatment under many U.S. tax treaties and under FIRPTA provisions applicable to foreign investors. For funds with offshore capital participation, the REIT structure can reduce withholding obligations and simplify tax administration.
State-Level Withholding Reduction
Lenders operating across multiple states often face complex state income tax withholding obligations tied to loan activity in various jurisdictions. REIT dividends receive treatment that can reduce or eliminate certain state-level withholding requirements, streamlining tax administration for multi-state portfolios.
Licensing Considerations When Implementing a Sub-REIT
One operational issue that requires careful attention — particularly for California-based lenders — is the question of licensing at the subsidiary level.
California’s Department of Financial Protection and Innovation (DFPI) has not provided clear guidance on whether transferring loans between a parent fund and a sub-REIT subsidiary constitutes a regulated activity requiring separate licensing. The California Finance Lenders License (CFL) is the standard solution, as it provides the subsidiary with independent authority to originate, hold, and assign loans without relying on the parent entity’s license.
Originating loans directly at the sub-REIT level — rather than at the parent fund and assigning down — is cleanest from a licensing and documentation standpoint, particularly in states where lender assignment triggers licensing review.
For loan assignment when converting an existing fund to a sub-REIT structure: recording of assignments at the county level is generally deferred until the loan approaches default or foreclosure. At that point, the appropriate entity should be reflected on the recorded instrument before enforcement proceedings begin. If the loan is subsequently moved back to the fund level, a re-assignment and re-recording follows.
Other states, including Arizona and Nevada, have generally more straightforward licensing environments for affiliate transfers between related lending entities, though the analysis remains state-specific.
Cost-Benefit Framework for the Decision
For fund managers evaluating a REIT election, the core variables are:
The only scenario where the analysis consistently does not favor a REIT election is a fund composed almost entirely of IRA and retirement plan investors who are not leveraged. In that case, the QBI deduction provides no benefit to tax-exempt investors, and the UBTI blocker has no value without leverage. For all other investor demographics, the analysis strongly favors the structure for funds with sufficient scale to absorb the initial setup cost.
Operational and Compliance Checklist
Fund managers implementing a sub-REIT structure should maintain the following on an ongoing basis:
- Annual investor count verification: Confirm 100+ shareholders at the REIT level
- Five-and-fifty compliance monitoring: Review fully diluted ownership quarterly; flag related-party relationships
- Distribution compliance: Ensure 90%+ of taxable income is distributed annually
- Asset test monitoring: Confirm 75%+ of assets remain real estate-related; flag preferred equity, mezzanine, and hybrid positions for separate review
- Prohibited transaction tracking: Log all dispositions; review against safe harbor thresholds before year-end
- State licensing review: Verify sub-REIT has required licenses for states where it will directly originate or hold loans
- Annual audit consolidation: Prepare consolidated financial statements including the sub-REIT
- Tax return filing: File separate tax return for the REIT subsidiary
How Geraci LLP Can Help
Geraci LLP has structured fund-level REIT elections and sub-REIT architectures for private lending clients across the country, working through the full range of qualification requirements, prohibited transaction analysis, licensing considerations, and investor communication needs that these engagements involve. Our attorneys work alongside fund managers’ tax and accounting teams to build structures that deliver the intended benefits while maintaining the flexibility fund managers need as market conditions evolve.
To discuss whether a REIT election makes strategic sense for your fund, contact Geraci LLP at (949) 403-3488 or visit our offices at 90 Discovery, Irvine, CA 92618. Our team is available to walk through your specific fund structure and provide a frank assessment of costs, benefits, and implementation requirements.
