A feeder fund is a pooled investment vehicle that collects money from investors and then invests that capital into a single larger fund, called the master fund, where one investment manager runs the entire portfolio. The arrangement is the standard structure for hedge funds and private equity: several feeder funds sit around a central master fund, each one built for a different type of investor, all of them owning slices of the same underlying portfolio. To invest in a feeder fund, you generally need to be an accredited investor at a minimum, which means a net worth above $1 million excluding your primary residence or annual income of at least $200,000. Larger funds require a higher bar called qualified purchaser status. The real reason funds bother maintaining multiple feeders is tax: U.S. taxable investors, foreign investors, and tax-exempt institutions each need a different tax treatment, and separate feeders let one manager serve all three without forcing them into the same regime.
How the Master-Feeder Structure Works
Picture a wheel. The master fund sits at the hub and holds the actual portfolio of securities, derivatives, or other assets. Each feeder fund is a spoke that collects capital from a specific group of investors and subscribes for interests in the master fund. When you invest through a feeder, your money flows into the master, where it pools with capital from every other feeder. The master issues ownership interests to each feeder in proportion to the capital it contributed.
All trading happens at the master fund level. The manager runs one strategy, executes trades through one set of brokerage accounts, and maintains one portfolio. Gains and losses flow back to each feeder based on its share of ownership in the master, and your feeder then allocates your slice of those results to your individual capital account. That consolidation is the whole point. Instead of running three or four identical portfolios with separate trading desks and custody arrangements, the manager runs one.
Why Funds Maintain Separate Feeders
The separation into multiple feeders has nothing to do with strategy. Every feeder invests in the same master fund and receives the same investment returns. The separation exists because different investor categories have incompatible tax needs.
An onshore feeder typically takes the form of a U.S. limited partnership or limited liability company. That pass-through structure means the fund itself doesn’t pay federal income tax. Profits and losses flow directly to each investor’s personal tax return through a Schedule K-1. U.S. taxable investors want exactly that: they can use fund losses to offset other income, and they receive capital gains at preferential rates.
An offshore feeder is usually organized as a corporation in a jurisdiction such as the Cayman Islands or Bermuda. It serves two groups. Foreign investors avoid filing U.S. tax returns and potentially triggering U.S. tax obligations they wouldn’t otherwise have. And tax-exempt U.S. institutions like pension funds, endowments, and foundations use the offshore corporate structure as a shield against Unrelated Business Taxable Income. Under the Internal Revenue Code, tax-exempt organizations owe tax on income from a trade or business unrelated to their exempt purpose, and many hedge fund strategies involving leverage or operating businesses generate exactly that kind of income.1Office of the Law Revision Counsel. 26 USC 512 – Unrelated Business Taxable Income By investing through an offshore corporation, the tax-exempt entity receives corporate dividends rather than pass-through trade-or-business income, which blocks the UBTI problem.
Who Can Invest in a Feeder Fund
Feeder funds and their master funds would technically qualify as investment companies under federal law. If they registered as such, they’d face the same rules as mutual funds: daily liquidity, strict leverage limits, diversification requirements, and detailed public disclosure. None of that is compatible with hedge fund strategies. So master-feeder structures almost always rely on one of two exemptions from the Investment Company Act of 1940, and the exemption a fund chooses determines who can get in.
The 3(c)(1) Exemption
Section 3(c)(1) exempts any fund whose securities are held by no more than 100 beneficial owners, provided the fund makes no public offering. This is the workhorse exemption for smaller funds. There’s a catch: under the look-through rule, a feeder that owns 10% or more of the master fund’s voting securities doesn’t count as one beneficial owner. The master fund must count each of the feeder’s underlying investors individually.2Office of the Law Revision Counsel. 15 USC 80a-3 – Definition of Investment Company Since feeders almost always own well over 10% of their master, the 100-person limit effectively caps the combined investor count across all feeders relying on 3(c)(1).
The 3(c)(7) Exemption
Section 3(c)(7) removes the 100-investor cap, but restricts ownership to qualified purchasers.2Office of the Law Revision Counsel. 15 USC 80a-3 – Definition of Investment Company Qualified purchaser is a much higher bar than accredited investor: individuals must own at least $5 million in investments, and institutional investors acting on a discretionary basis must own and invest at least $25 million.3Cornell Law School Legal Information Institute. Definition: Qualified Purchaser from 15 USC 80a-2(a)(51) Larger hedge funds and private equity funds almost always use 3(c)(7) because it lets them accept far more investors without triggering registration.
Accredited Investor and Qualified Purchaser Thresholds
Under Regulation D, a natural person qualifies as an accredited investor with a net worth above $1 million excluding a primary residence, or with individual income above $200,000 in each of the two most recent years and a reasonable expectation of the same in the current year. Joint income with a spouse of $300,000 meets the test as well.4eCFR. 17 CFR Part 230 – Regulation D Various entity types also qualify, including banks, insurance companies, registered investment companies, employee benefit plans with assets over $5 million, and certain trusts.
For qualified purchaser status, the word “investments” matters. Primary residences, personal property, and business assets used in operations generally don’t count. The SEC defines investments to include securities, real estate held for investment, commodity contracts, and similar financial assets.
A 3(c)(1) fund can accept accredited investors who aren’t qualified purchasers, but it’s capped at 100. A 3(c)(7) fund can accept thousands of investors, but every one must clear the qualified purchaser threshold.
How Funds Verify Your Status
Verification depends on which Regulation D rule the fund uses. Under Rule 506(b), the more common approach, funds can rely on investor self-certification through a subscription agreement and investor questionnaire. Funds relying on Rule 506(c), which permits general advertising, must take reasonable steps to independently verify accredited investor status, typically by reviewing tax returns, bank statements, or a written confirmation from an attorney or CPA.5U.S. Securities and Exchange Commission. General Solicitation – Rule 506(c) Either way, expect to provide government-issued identification, your Social Security number or employer identification number, a physical address, and representations about your net worth and income. Funds also run anti-money-laundering screening and verify beneficial ownership of any entities investing through the fund.
Fees You’ll Pay
The traditional hedge fund fee model charges a management fee of roughly 1% to 2% of assets under management plus a performance allocation of around 20% of profits. This “2 and 20” structure has been under pressure for years, and many funds now offer reduced rates, sliding scales, or multi-year performance measurement periods. The basic framework still persists across most master-feeder structures.
The management fee is typically calculated at the feeder level because different feeders may have negotiated different rates. A large institutional investor committing $50 million might pay 1% while a smaller investor pays 1.5%, and separate feeders make that accounting cleaner. Performance fees usually apply only to gains above a high-water mark: if the fund loses money one year, the manager doesn’t collect performance fees the following year until the fund has recovered past its previous peak. That prevents a manager from earning performance fees on the same gains twice.
Operating costs split between the two levels of the structure. At the master fund level, trading commissions, prime brokerage fees, custodial charges, and audit expenses are allocated across all feeders in proportion to each feeder’s share of total assets. If your feeder holds 40% of the master fund’s capital, it absorbs 40% of those costs. At the feeder fund level, legal fees, tax preparation, regulatory filings, and entity maintenance are paid separately, so the cost of maintaining an offshore Cayman entity doesn’t fall on onshore domestic investors. Tax preparation for a single feeder entity can run $20,000 to $50,000 annually given the complexity of partnership allocations and international reporting.
Some funds also pay placement agent fees when they hire a third party to market the fund, typically 2% to 2.5% of the capital raised. Whether those fees are absorbed by the manager or allocated to the fund depends on the offering documents, so read the private placement memorandum carefully.
How Hard It Is to Get Your Money Out
Feeder funds are nothing like mutual funds when it comes to redemptions. Mutual funds offer daily redemptions at net asset value. Feeder funds impose a series of restrictions designed to protect the portfolio from sudden outflows that could force the manager to sell positions at the worst possible time.
Lock-Up Periods
Most hedge fund feeders require an initial lock-up during which you cannot withdraw capital at all. Most funds set the lock-up somewhere between three months and one year, though funds pursuing less liquid strategies may lock capital for two to three years. After the lock-up expires, redemption windows are typically quarterly or semiannual, and you’ll need to submit a redemption notice weeks or months in advance. Miss the deadline and some funds automatically lock you in for another full cycle.
Gates and Suspensions
Even after your lock-up expires, the fund may limit how much capital can leave at once. A gate provision caps total redemptions in any given period, often at 10% to 25% of the fund’s net asset value. If requests exceed the gate, each request is fulfilled proportionally and the rest rolls to the next redemption date. In extreme market conditions, managers can suspend redemptions entirely, freezing investor capital until conditions stabilize. The legal authority for these restrictions comes from the fund’s offering documents, not from any regulatory mandate, so the specific terms vary from fund to fund.
Side Pockets
When a master fund holds an asset that becomes illiquid or hard to value, the manager may move it into a side pocket: a segregated account separated from the main portfolio. Side pockets prevent redeeming investors from cashing out at an artificially high value while sticking remaining investors with the illiquid position. Capital allocated to a side pocket stays locked until the asset is eventually sold or written off.
Capital Call Defaults in Private Equity Feeders
Private equity feeder funds work differently. Instead of investing a lump sum upfront, you commit a total amount and the fund draws it down over time through capital calls. Failing to meet a capital call triggers severe consequences laid out in the limited partnership agreement. Penalties can include interest charges at punitive rates, forfeiture of voting rights, forced sale of your partnership interest at a steep discount (sometimes 50% off), or a reduction of your capital account by as much as 50% to 100%. Missing a capital call can mean losing most or all of the money you already invested, not just the amount you failed to contribute.
Tax Risks for U.S. Investors in Offshore Feeders
U.S. taxable investors almost always belong in the onshore feeder, but occasionally a U.S. person ends up with exposure to an offshore feeder structured as a foreign corporation. When that happens, the offshore entity is likely classified as a Passive Foreign Investment Company under the Internal Revenue Code, which carries harsh tax consequences.
The default tax treatment for PFIC shareholders is the excess distribution method. When you receive a distribution or sell your shares, the IRS spreads the gain across all years you held the investment and taxes each year’s portion at ordinary income rates (up to 37%) plus an interest charge for the theoretical benefit of deferring the tax. Two elections can improve the outcome. A Qualified Electing Fund election lets you report your share of the fund’s earnings annually, with capital gains taxed at preferential rates rather than ordinary income rates. A mark-to-market election requires you to recognize gains and losses each year as ordinary income and eliminates the interest charge. Both are made on Form 8621, filed with your tax return.
U.S. persons holding PFIC interests must file Form 8621 annually when they receive distributions, sell shares, or hold PFICs with a combined value exceeding $25,000 ($50,000 for married filing jointly). Penalties for failing to file can reach $10,000 per form per year, and the IRS can keep the statute of limitations open indefinitely on unfiled forms. Any U.S. taxpayer considering an offshore feeder should talk to a tax adviser before committing capital.
What to Check Before You Invest
The master-feeder structure concentrates all trading authority and asset custody in the master fund, which means due diligence needs to focus there, not on the feeder that happens to be your entry point. The Madoff fraud, in which multiple feeder funds channeled billions of dollars into a Ponzi scheme, is the standard cautionary example: unrealistically smooth returns, a small and obscure audit firm, no independent prime broker or custodian, and trading volumes that couldn’t be verified in the market.
Focus on the structural safeguards at the master fund level:
- Independent service providers. The master fund should use a reputable, independent prime broker, custodian, auditor, and administrator. If the same entity manages money and holds custody, that’s the biggest single red flag in alternative investments.
- Audited financial statements from a recognized accounting firm. If the auditor is small and unknown, ask why.
- Adviser registration. Investment advisers managing private funds with $150 million or more in U.S. assets must register with the SEC and file Form ADV, which is publicly available and discloses business practices, conflicts of interest, and disciplinary history. Advisers below that threshold may still file as exempt reporting advisers. Check the filing either way.6U.S. Securities and Exchange Commission. Form ADV – Uniform Application for Investment Adviser Registration
- Offering documents. Read the private placement memorandum, the limited partnership agreement, and the subscription documents before committing. They’re dense, but they contain the fee structure, withdrawal restrictions, and the manager’s broad discretionary authority over your capital.
Feeder funds operate outside the protections that public mutual fund investors take for granted: no daily pricing, no guaranteed redemptions, no SEC registration, and no limit on leverage. That tradeoff gives skilled managers room to pursue strategies unavailable in registered funds, but it puts the burden of due diligence squarely on you. The subscription questionnaire isn’t a legal formality. It exists because these structures assume every investor walking in understands exactly what they’re giving up in exchange for access.