Master-Feeder Structure: Pooling Onshore and Offshore Capital

Key Takeaways

• A master-feeder structure uses one master fund to hold the portfolio and two or more feeder funds through which investors actually subscribe.
• The typical setup pairs an onshore feeder for US taxable investors with an offshore feeder for non-US and US tax-exempt investors.
• Running a single master book gives every feeder the same gross return, eliminates tracking error between the funds, and captures economies of scale.
• Feeders differ only in their legal and tax wrapper; the investment strategy and the positions are identical across all of them.

What It Is

A master fund is the entity that holds the positions and executes every trade. It has no direct investors of its own. A feeder fund is an entry vehicle that raises capital from a defined group of investors and invests that capital entirely into the master.

The classic arrangement has two feeders. The onshore feeder is usually a US limited partnership (often Delaware) for US taxable investors. The offshore feeder is usually a Cayman Islands or British Virgin Islands corporation for non-US investors and US tax-exempt institutions such as pensions, endowments, and foundations. The master itself is typically an offshore entity that elects to be treated as a partnership for US tax purposes.

The Intuition

Two investor groups want opposite legal wrappers. US taxable investors want a partnership so gains, losses, and income flow through to them without an extra layer of entity tax. Non-US and tax-exempt investors want a foreign corporation that "blocks" US tax exposure, avoids US filing obligations, and shields tax-exempt investors from unrelated business taxable income (UBTI) generated by leverage.

A manager could satisfy both groups by running two full portfolios, but that doubles trading, creates tracking error between the two, and wastes scale. The master-feeder structure solves this by keeping one portfolio in the master and letting each feeder plug into it with the wrapper its investors need.

How It Works

Each feeder owns an interest in the master proportional to the capital it contributes. The master trades one book. At period end, the master's profit and loss is allocated pro rata to the feeders by ownership share, so every feeder earns the same gross percentage return.

Because the master is treated as a partnership for US tax, the onshore feeder receives pass-through treatment and reports its share of income to its partners. The offshore feeder, a corporation, absorbs its share inside the corporate wrapper, insulating its investors. Management and performance fees are charged at either the master or the feeder level, and the prime brokerage and custody relationships sit at the master, where the assets actually are.

Worked Example

A fund launches with an onshore feeder holding $300 million and an offshore feeder holding $200 million. Both invest into the master, so the master's assets are $500 million. Ownership is 60% onshore and 40% offshore.

The master returns 15% gross for the year, a $75 million gain. Allocated pro rata:

• Onshore feeder: 60% of $75M = $45M (which is 15% of its $300M).
• Offshore feeder: 40% of $75M = $30M (which is 15% of its $200M).

Both feeders earn exactly 15% gross, confirming there is no tracking error. Now apply a 2% management fee and a 20% performance fee (charged on profit net of the management fee):

• Onshore: management fee 2% of $300M = $6M. Net profit $45M - $6M = $39M. Performance fee 20% x $39M = $7.8M. Investors keep $39M - $7.8M = $31.2M.
• Offshore: management fee 2% of $200M = $4M. Net profit $30M - $4M = $26M. Performance fee 20% x $26M = $5.2M. Investors keep $26M - $5.2M = $20.8M.

The fee math is proportional and identical in percentage terms; only the tax treatment of that $31.2M and $20.8M differs by feeder.

Common Mistakes

1. Confusing it with a fund-of-funds. A fund-of-funds allocates to many outside managers. A master-feeder is one manager's single portfolio accessed through different entry funds.
2. Thinking investors subscribe to the master. Investors subscribe to a feeder. The master has no direct investors of its own.
3. Assuming perfectly identical net returns. Feeders share gross return, but fee timing, feeder-level currency hedging, and different subscription dates can cause small divergences.
4. Routing tax-exempt investors onshore. US pensions and endowments usually invest through the offshore feeder to block UBTI from leverage, not through the onshore partnership.
5. Treating "offshore" as a different strategy. The offshore feeder is a tax and regulatory wrapper, not a separate or riskier portfolio.

Frequently Asked Questions

Q: What is a master-feeder structure? It is a fund arrangement where one master fund holds and trades the portfolio while two or more feeder funds raise capital and invest it into the master. Investors buy into a feeder chosen for their tax status, and all feeders share the master's single book of positions.

Q: Why do hedge funds use a master-feeder structure instead of running separate funds? It lets one portfolio serve both US taxable investors and non-US or tax-exempt investors. Running a single master book removes tracking error between the funds, cuts duplicate trading and operating costs, and gives every feeder the same gross return.

Q: Who invests in the onshore versus the offshore feeder? US taxable investors typically use the onshore feeder, a US partnership offering pass-through treatment. Non-US investors and US tax-exempt institutions typically use the offshore feeder, a foreign corporation that blocks US tax exposure and UBTI.

Q: Is the master fund onshore or offshore? The master is usually organized offshore but elects to be treated as a partnership for US tax so the onshore feeder retains pass-through treatment. Its legal home is separate from where its investors reside.

Q: Do investors pay tax twice in this structure? No. The design specifically avoids double taxation. The onshore partnership passes income through to US investors, and the offshore corporate feeder shields its investors from a US entity-level layer, so each group is taxed once under its own regime.

Sources

1. Investopedia. "Master-Feeder Structure." https://www.investopedia.com/terms/m/masterfeeder.asp
2. Investopedia. "Feeder Fund." https://www.investopedia.com/terms/f/feederfund.asp
3. SEC / Investor.gov. "Hedge Funds." https://www.investor.gov/introduction-investing/investing-basics/investment-products/hedge-funds
4. Investopedia. "Unrelated Business Taxable Income (UBTI)." https://www.investopedia.com/terms/u/ubti.asp

Disclaimer

This article is educational content only and is not financial advice. Nothing here is a recommendation to buy, sell, or hold any security. Consult a licensed advisor before making investment decisions.