Master-Feeder Structures: One Fund, Multiple Investor Classes

The domestic feeder is designed for U.S. .axable investors who need partnership tax treatment, meaning pass-through of income, gains, and losses directly to the investor for inclusion on their individual or entity tax returns reported on Schedule K-1.

The offshore feeder is designed for two distinct groups with different but compatible needs. Foreign investors who invest through an offshore feeder avoid having income from the master fund treated as effectively connected income, or ECI, which would subject them to U.S. .ederal income tax filing obligations and withholding. U.S. .ax-exempt investors including pension funds, endowments, and foundations invest through the offshore feeder because the offshore feeder can be structured as a corporation that pays entity-level tax on unrelated business taxable income, or UBTI, rather than passing UBTI through to the tax-exempt investor directly.

The master fund allocates income, gains, losses, and expenses to each feeder in proportion to its investment, and each feeder then allocates its share to its own investors according to the feeder's partnership or corporate structure. An attorney who handles private investment funds and master-feeder formation matters can structure the allocation mechanics to achieve the intended economic and tax result for each investor class.

The look-through rules under the Investment Company Act create complexity in master-feeder structures because they can cause investors in a feeder to be counted directly as investors in the master, potentially exceeding the applicable investor limits.

When a feeder fund relies on the 3(c)(1) exemption and invests more than 40 percent of its assets in another 3(c)(1) fund, the investing feeder's beneficial owners are looked through and counted directly against the master fund's 100-investor limit. This look-through can cause the master fund to exceed its investor limit if the feeder funds collectively have more than 100 beneficial owners. The standard solution is to have both the feeder funds and the master fund rely on 3(c)(7), which eliminates the investor count concern but restricts all participants to qualified purchasers.

Knowledgeable employees of the investment manager are permitted to invest in 3(c)(1) and 3(c)(7) funds without being counted toward the investor limits or being required to qualify as accredited investors or qualified purchasers, which gives the fund manager flexibility to include employee co-investment without disrupting the structure's compliance with the applicable exemption. An attorney who handles SEC compliance and fund formation matters can map the proposed investor roster against the applicable exemption limits before the offering documents are finalized.

The ERISA plan asset rules impose an additional layer of compliance complexity on master-feeder structures that accept capital from benefit plan investors. When benefit plan investors own 25 percent or more of any class of equity interests in a fund, the fund's assets are treated as ERISA plan assets, subjecting the fund manager to ERISA's fiduciary duties and prohibited transaction rules for all of the fund's investments. Most fund managers either limit benefit plan participation below 25 percent or qualify as a Qualified Professional Asset Manager to avoid plan asset treatment while accepting larger benefit plan allocations.

Tax-exempt investors including pension funds, endowments, and foundations are subject to unrelated business income tax on income from businesses unrelated to their exempt purpose, and investment income from a partnership that uses debt to generate returns is generally treated as UBTI under Internal Revenue Code § 512(b)(13).

When a tax-exempt investor invests directly in a domestic limited partnership that uses leverage, the leveraged investment income is UBTI flowing directly to the tax-exempt investor and taxable at the trust tax rate. Channeling the tax-exempt investment through an offshore feeder organized as a corporation interposes a corporate tax layer between the leveraged income and the tax-exempt investor. The offshore feeder pays entity-level corporate tax on its UBTI rather than passing it through, which is less tax-efficient than a direct investment for a fully taxable investor but significantly more efficient than paying UBTI at the trust rate for a tax-exempt investor.

The ERISA 25 percent plan asset test applies separately to each feeder class. If the offshore feeder's investor base includes benefit plan investors holding 25 percent or more of the feeder's interests, the offshore feeder's assets become ERISA plan assets regardless of the onshore feeder's benefit plan investor percentage. An attorney who handles private capital funds and ERISA investment fund matters can calculate the benefit plan percentage across each feeder class and advise on whether the fund manager needs to qualify as a QPAM or limit benefit plan participation.

PFIC rules under Internal Revenue Code §§ 1291 through 1298 create a separate trap for U.S. .axable investors who invest in offshore feeder funds organized as corporations. A U.S. .nvestor who holds an interest in a Passive Foreign Investment Company faces punitive tax treatment on excess distributions and dispositions unless a QEF election or mark-to-market election is made. Offshore feeders organized as corporations for UBTI blocking purposes may be PFICs with respect to their U.S. .axable investors, and domestic feeder fund structures are typically used to avoid this result for U.S. .axable participants.

Master-feeder structures generate a specific set of structural, tax, and regulatory questions that fund managers and institutional investors encounter when building or evaluating a fund architecture for the first time. The questions that most reliably come up at that stage are answered here.

A master-feeder structure consists of a master fund that holds the investment portfolio and executes all trading, and one or more feeder funds that raise capital from specific investor classes and invest all proceeds into the master fund. The domestic feeder accepts U.S. .axable investors and is typically organized as a Delaware limited partnership. The offshore feeder accepts foreign investors and U.S. .ax-exempt investors and is typically organized in the Cayman Islands. All investment returns flow from the master fund through the feeders to the individual investors, preserving the tax character of income at each level.

U.S. .ax-exempt investors including pension funds and endowments are subject to unrelated business income tax on income from leveraged investments in partnerships. Investing through an offshore feeder organized as a Cayman corporation interposes a corporate tax layer that absorbs the UBTI at the entity level rather than passing it through to the tax-exempt investor. The offshore feeder pays corporate tax on its UBTI while the tax-exempt investor receives only the after-tax distribution, which is treated as qualifying investment income rather than UBTI. This structure is significantly more favorable than direct participation in a domestic leveraged partnership.

The two primary exemptions are Section 3(c)(1), which limits beneficial ownership to 100 investors with no restriction on investor qualification, and Section 3(c)(7), which permits an unlimited number of investors but restricts participation to qualified purchasers with at least $5 million in investments for individuals and $25 million for institutions. Most institutional funds use 3(c)(7) to avoid the investor count limit. Look-through rules require that a master fund using 3(c)(1) count the investors in any 3(c)(1) feeder toward its own 100-investor limit, making 3(c)(7) the preferred choice when the combined investor base across all feeders would approach or exceed 100 beneficial owners.

The ERISA plan asset rules treat a fund's assets as ERISA plan assets when benefit plan investors own 25 percent or more of any class of equity interests in the fund, subjecting the fund manager to ERISA's fiduciary duties and prohibited transaction rules for all fund investments. The 25 percent test applies separately to each feeder class. A fund manager who wants to accept significant pension fund allocations without plan asset treatment must either limit benefit plan participation below 25 percent in each feeder or qualify as a Qualified Professional Asset Manager, which permits plan asset treatment with compliance obligations under ERISA rather than the fiduciary restrictions that would otherwise apply.

FATCA requires offshore feeder funds to register as Foreign Financial Institutions with the IRS, collect documentation of each investor's identity and tax status, and report U.S. .ccount holders to the IRS or to their local tax authority under an intergovernmental agreement. An offshore feeder that fails to comply with FATCA faces 30 percent withholding on withholdable payments including U.S.-source income and gross proceeds from the sale of U.S. .ecurities. Offshore feeders organized in Cayman Islands typically comply through the Cayman FATCA intergovernmental agreement framework, which requires the feeder to register, collect investor documentation, and report to the Cayman Tax Information Authority rather than directly to the IRS.

A parallel fund structure uses separate funds that invest side by side in the same transactions rather than pooling capital through a master entity. It is more appropriate than a master-feeder when the fund's strategy involves illiquid assets where different investor classes need different liquidity terms, when regulatory requirements differ materially between investor classes in ways the feeder structure cannot accommodate, or when the fund invests in jurisdictions where a master partnership creates unintended tax nexus for foreign investors. An attorney who handles asset management and fund formation matters can evaluate which structure better fits the fund's investment strategy, target investor base, and regulatory profile before commitments are accepted.