Section 3(c)(5)(C) of the Investment Company Act exempts private mortgage funds from SEC registration as investment companies, provided the fund holds at least 55% of its assets in qualifying real estate interests and at least 80% in real-estate-related interests. Funds that satisfy this two-tier test operate under Regulation D rather than the 1940 Act registration and reporting framework.

What §3(c)(5)(C) Covers

Section 3(c)(5)(C) carves out entities that are primarily engaged in the business of purchasing or otherwise acquiring mortgages and other liens on and interests in real estate. A private mortgage fund that qualifies avoids SEC registration as an investment company and the full 1940 Act operational and reporting regime. Instead, the fund raises capital through a Regulation D offering — Rule 506(b) or Rule 506(c) under Securities Act §4(a)(2) — and governs itself through its own offering documents, operating agreement, and subservicing arrangements.

The exemption carries no cap on fund size and no ceiling on beneficial owners, which is the primary structural advantage over §3(c)(1).

The Two-Tier Asset Test

The SEC enforces §3(c)(5)(C) through a two-tier asset test applied to the fund’s balance sheet on each measurement date.

• Tier 1 — Qualifying Interests (55% floor): At least 55% of the fund’s total assets must consist of qualifying interests in real estate — whole mortgage loans, fee interests in real property, and other interests the SEC has classified as qualifying through its no-action letter framework.
• Tier 2 — Real-Estate-Related Interests (80% floor): At least 80% of total assets must consist of real-estate-related interests — the Tier 1 qualifying interests plus mezzanine loans, B-notes, agency mortgage-backed securities, and other SEC-recognized instruments.
• Residual Bucket (20%): The remaining 20% of assets can be held in miscellaneous non-real-estate investments such as cash or Treasuries.

Both thresholds are tested on the actual balance sheet, asset by asset. Neither is self-certifying.

Qualifying Interests in Real Estate

Three asset categories count toward the 55% qualifying-interest floor.

1. Whole mortgage loans. First-position notes fully secured by real estate — the core instrument for most private mortgage funds. The loan must be fully secured by the underlying collateral at the time of classification.
2. Fee interests in real estate. Direct ownership of real property held under the fund’s title. REO acquired through foreclosure qualifies here once title transfers to the fund.
3. Other SEC-classified qualifying interests. Fully secured installment land contracts and certain pre-1995 B-pieces that satisfy the criteria in applicable SEC no-action letters qualify here. The defining characteristic is that the instrument functions as the economic equivalent of a whole mortgage loan against the underlying real estate collateral.

Real-Estate-Related Interests

The 80% floor captures a broader set of instruments that fall short of qualifying-interest status.

• Mezzanine loans and B-notes. Subordinate-position interests in real-estate-secured lending count toward the 80% floor but not the 55% qualifying-interest floor. That distinction shapes portfolio construction for every fund that holds subordinate debt.
• Equity interests in real-estate operating companies. REITs and similar real-estate-focused entities fall into this category.
• Agency mortgage-backed securities. Fannie Mae, Freddie Mac, and Ginnie Mae pass-through securities are real-estate-related interests — not qualifying interests. Misclassifying them into the 55% bucket is one of the most common compliance errors fund managers make.
• Other SEC-recognized interests. The SEC has expanded this category through its no-action letter process. Classification must track the applicable no-action position. Internal classification alone is not sufficient.

The SEC No-Action Letter Framework

The SEC develops and refines §3(c)(5)(C) classification standards through no-action letters issued by the Division of Investment Management — not through formal rulemaking.

The 1996 American Home Finance no-action letter established the foundational framework for the whole-mortgage-loan classification and the 55% qualifying-interest floor. Subsequent letters addressed mezzanine loans, B-notes, and agency MBS. Fund managers and their counsel must map each portfolio asset to the applicable no-action position before locking in a classification. An asset classified on internal judgment alone rather than a recognized SEC position is a documented compliance exposure.

Testing Cadence and Documentation

The standard compliance practice is a quarterly §3(c)(5)(C) asset test against the fund’s balance sheet.

Each test cycle requires a loan-by-loan and investment-by-investment classification inventory with written documentation of the classification rationale for every asset. The quarterly documentation package supports the annual audit and is reviewed by SEC counsel on at minimum an annual basis. A fund that drops below the 55% or 80% floor on a measurement date has a compliance event — not a cure-period safe harbor — and must activate a corrective-action plan immediately.

§3(c)(5)(C) vs. §3(c)(1) and §3(c)(7)

The Investment Company Act provides three primary exemption paths for a private mortgage fund, each with different trade-offs on investor count, investor type, and asset discipline.

A fund growing toward the 100-investor cap under §3(c)(1) faces a structural decision: raise the investor qualification bar to §3(c)(7)’s qualified-purchaser standard or build the portfolio to satisfy §3(c)(5)(C)’s asset test. See §3(c)(5)(C) vs. §3(c)(1) for Mortgage Funds for the full comparison.

State-Level Overlays

The §3(c)(5)(C) exemption removes the fund from federal investment company registration — it does not preempt state securities regulation or state lending licensing.

Funds raising capital through a Regulation D Rule 506 offering benefit from NSMIA preemption of state securities registration but must file Form D with the SEC within 15 days of the first sale and submit notice filings in each state where the offering is made. California adds two additional layers: the Department of Financial Protection and Innovation administers CFL and CRMLA licensing for lending operations, and the Department of Real Estate governs arrangements under California’s §10238 multi-lender framework. See California Section 10238 Multi-Lender Loan Rules for the full breakdown.

Common §3(c)(5)(C) Compliance Pitfalls

Five recurring errors put a fund’s exemption at risk.

1. Misclassifying B-notes and mezzanine loans as qualifying interests. The SEC no-action framework places B-notes and mezzanine loans in the real-estate-related category, not the qualifying-interest bucket. Counting them toward the 55% floor overstates compliance with the qualifying-interest threshold.
2. Treating agency MBS as qualifying interests. Fannie Mae, Freddie Mac, and Ginnie Mae pass-through securities support the 80% real-estate-related floor — they do not count toward the 55% qualifying-interest floor.
3. Letting cash and Treasuries overflow the 20% residual bucket. Excess cash or Treasury positions beyond the 20% residual allowance push the real-estate-related percentage below the 80% floor, often without the manager realizing it until the quarterly test is run.
4. Insufficient documentation on asset classification. Sending a summary percentage to the auditor without a loan-by-loan classification narrative leaves the fund without a defensible record if the SEC challenges any classification.
5. No defined cure-period protocol. A fund that hits a test failure without a written corrective-action plan — specifying the acquisition, divestiture, or reclassification steps and the cure timeline — carries an open compliance exposure. Standard practice is a 30- to 60-day cure window defined in advance with SEC counsel.

Expert Take

The §3(c)(5)(C) exemption is not self-executing. The asset test demands quarterly discipline, documented classification rationales tied to specific SEC no-action positions, and a written cure protocol established before any test failure occurs. Funds that treat the exemption as a one-time structuring decision rather than an ongoing compliance posture are the ones that generate SEC inquiry letters.

Frequently Asked Questions

What does §3(c)(5)(C) exempt the fund from?

Section 3(c)(5)(C) removes the fund from SEC registration as an investment company under the Investment Company Act of 1940. The fund avoids Form N-1A or N-2 registration, the 1940 Act’s operational restrictions, and the ongoing reporting obligations that apply to registered investment companies. The fund raises capital under Regulation D and governs itself through its own offering documents, operating agreement, and subservicing arrangements.

What is the two-tier asset test?

The two-tier test requires at least 55% of the fund’s total assets in qualifying interests in real estate — whole mortgage loans, fee interests in real property, and other SEC-classified qualifying interests — and at least 80% of total assets in real-estate-related interests, which adds mezzanine loans, B-notes, agency MBS, and other SEC-recognized real-estate instruments on top of the qualifying interests. The remaining 20% of assets can be non-real-estate holdings. The fund tests compliance quarterly against its actual balance sheet.

Are mezzanine loans qualifying interests?

Mezzanine loans and B-notes are real-estate-related interests — not qualifying interests — under the SEC’s no-action letter framework. They count toward the 80% floor but not the 55% qualifying-interest floor. A fund with a heavy mezzanine and B-note book must satisfy the 55% qualifying-interest floor entirely through whole mortgage loans and fee interests in real property.

How often does the fund run the test?

The standard compliance practice is a quarterly test against the fund’s balance sheet, with a loan-by-loan and investment-by-investment classification inventory and written documentation of the classification rationale for each asset. The annual audit cycle incorporates the quarterly documentation as supporting evidence, and SEC counsel reviews the full testing framework at minimum annually.

What happens if the fund fails the test?

A test failure — dropping below the 55% qualifying-interest floor or the 80% real-estate-related floor — is a compliance event that requires immediate corrective action. Standard remedies include acquiring additional whole mortgage loans, divesting non-qualifying assets, or reclassifying assets in line with the SEC’s no-action framework. Most funds establish a 30- to 60-day cure window in writing with SEC counsel before any failure occurs.

How does §3(c)(5)(C) differ from §3(c)(1)?

Section 3(c)(1) limits the fund to 100 beneficial owners and imposes no asset-class requirements. Section 3(c)(5)(C) removes the 100-investor ceiling entirely — subject to the Regulation D offering framework — but requires the fund to satisfy the 55%/80% two-tier asset test on a continuous basis. A fund approaching the 100-investor cap must decide whether to adopt §3(c)(5)(C)’s asset discipline or shift to §3(c)(7)’s qualified-purchaser standard. See §3(c)(5)(C) vs. §3(c)(1) for Mortgage Funds for a detailed comparison.

Does §3(c)(5)(C) preempt state securities registration?

The §3(c)(5)(C) exemption removes federal investment company registration requirements — it does not preempt state securities law. Funds using Regulation D Rule 506 benefit from NSMIA preemption of state registration requirements but must file Form D with the SEC and submit state notice filings in each state where the offering is made. State lending licensing requirements apply independently.

Working With a Fund Subservicer

Mortgage fund subservicing sits at the intersection of the §3(c)(5)(C) compliance framework, the Regulation D offering structure, and the operational requirements of a master-subservicer arrangement. Note Servicing Center provides fund subservicing for private mortgage note portfolios — including audit-rights support, SOC reporting, and investor-level reporting that satisfies the documentation standards the quarterly asset test requires.

Related Resources

• §3(c)(5)(C) vs. §3(c)(1) for Mortgage Funds
• §3(c)(5)(C) Questions Fund Managers Ask
• 5 Common Pitfalls in Managing a Fund as a Private Lender
• Advantages of a Mortgage Pool
• California Section 10238 Multi-Lender Loan Rules
• §10238 Multi-Lender vs. §25102(f) Private Offering

This article is educational and does not constitute legal advice. The §3(c)(5)(C) exemption involves asset-classification determinations that depend on specific SEC no-action positions and each fund’s individual portfolio composition. Consult qualified SEC counsel on the application of the exemption to any private mortgage fund.

Sources

• Investment Company Act §3(c)(5)(C) — Real Estate Exception. Securities and Exchange Commission.
• SEC Division of Investment Management — No-Action Letters. Securities and Exchange Commission.
• Securities Act Regulation D — Rules 506(b) and 506(c). Securities and Exchange Commission.
• Investment Company Act §3(c)(1) and §3(c)(7). Securities and Exchange Commission.
• National Securities Markets Improvement Act of 1996 — NSMIA preemption. U.S. Congress.
• SEC Form D — Notice of Exempt Offering of Securities. Securities and Exchange Commission.
• SEC No-Action Letter — American Home Finance Corporation (1996). Securities and Exchange Commission.