Private Credit Fund Structure: A Practical Guide

How a private credit fund structure works: vehicle and domicile choice, leverage and withholding tax, open versus closed designs, and the operational risks.

Private credit has moved from a niche corner of alternatives to a core allocation for institutions and family offices alike. As banks retreated from parts of corporate lending, funds stepped in to provide direct loans, asset-backed finance, and bespoke capital to borrowers that the public markets do not reach. For managers, the opportunity is real; the structuring is unforgiving.

A private credit fund structure has to solve problems that an equity fund never confronts. Loans generate interest income that can attract withholding tax across borders. Leverage, used to enhance returns, introduces lender covenants and an extra layer of risk. Capital is deployed and recovered on the rhythm of loan drawdowns and repayments, which rarely matches the liquidity investors would like. And lending in a given country can itself be a regulated activity.

This guide explains how these vehicles are typically built and where the design choices carry the most weight.

Open-Ended or Closed-Ended

The first decision is the fund's life and liquidity, and it follows from the underlying loan book. A strategy built around long-dated, illiquid loans held to maturity points naturally toward a closed-ended structure: a limited partnership with a defined investment period, capital calls as loans are funded, and distributions as principal and interest are repaid over the fund's life.

A strategy investing in shorter-duration, more liquid or more diversified credit can support an open-ended or evergreen design, offering periodic subscriptions and limited redemptions. The danger here is the same liquidity mismatch that troubles any credit vehicle: a loan portfolio cannot be sold quickly at par to meet redemptions. Open-ended credit funds therefore lean heavily on gates, notice periods, redemption queues, and the ability to suspend, all of which must be built into the documents from the start rather than improvised under pressure.

Many managers run a hybrid: a closed-ended drawdown vehicle for the illiquid core, alongside separately managed accounts or co-investment sleeves for large investors who want bespoke exposure or different liquidity. The structure should follow the assets, never the marketing wish list.

Vehicle and Domicile

The limited partnership remains the workhorse of private credit, valued for its flexibility, its drawdown mechanics, and its tax transparency, so that income and gains flow through to investors who are taxed in their own hands. Cayman, Luxembourg, Ireland and the Crown Dependencies all host credit vehicles, with the right choice driven by the investor base and the markets being lent into.

For funds marketing to EU investors, Luxembourg and Ireland offer regulated and lightly regulated regimes and a route to passport marketing across the bloc under the relevant directive. For globally marketed funds with a non-EU base, Cayman structures are common. Crown Dependency vehicles serve particular investor bases well. The decision is rarely about the lowest cost; it is about credibility with the target investors and access to their jurisdictions.

A master-feeder arrangement is typical where one loan portfolio must serve different investor classes, with separate feeders managing the tax and regulatory profile of taxable, tax-exempt, and non-resident investors.

The Withholding Tax Problem

Lending across borders raises a problem equity funds largely avoid. Interest paid by a borrower to a lender in another country can attract withholding tax at source, eroding the very yield the fund exists to capture. Whether that tax applies, and at what rate, depends on the borrower's jurisdiction, the lender's jurisdiction, any applicable double-tax treaty, and frequently on specific exemptions for certain lenders or instruments.

This is why credit funds pay such close attention to where the lending entity sits. A platform may use intermediate holding or lending vehicles in jurisdictions with favourable treaty networks, provided there is genuine substance and the structure is not merely treaty shopping, which post-reform anti-abuse rules will not respect. Getting this wrong can quietly cost investors several points of return a year.

We treat the withholding analysis as a first-order design question, not an afterthought, because retrofitting a tax-efficient lending structure once loans are on the books is difficult and sometimes impossible.

Leverage and Its Consequences

Many private credit strategies use fund-level leverage, often a subscription line secured against investors' uncalled commitments, or asset-level borrowing secured against the loan portfolio, to enhance returns and manage cash flow between capital calls.

Leverage cuts both ways. It magnifies returns in good conditions and losses in bad, and it introduces a lender whose covenants now govern the fund. Borrowing-base tests, concentration limits, and loan-to-value triggers can force the fund to act, sometimes at the worst time, if the portfolio deteriorates. Subscription lines also affect how performance is reported, since they can flatter early returns by deferring the moment investors' capital is actually called.

Sound structures disclose leverage clearly, cap it within defined limits in the fund documents, and stress-test the portfolio against a downturn in which borrowers default and the financing lender tightens its terms simultaneously. Investors and regulators increasingly expect this transparency.

Regulation, Lending Licences and Substance

Lending is not always a free activity. In a number of jurisdictions, originating loans, particularly to consumers or small businesses, is a regulated activity requiring a licence. A credit fund that lends directly into such a market without the right permission risks unenforceable loans and regulatory sanction. Many funds address this by lending only to corporates, by using licensed origination partners, or by structuring participations rather than direct loans.

On top of this sits the standard architecture: authorisation or registration of the manager, economic substance where the fund and any lending vehicles are domiciled, anti-money-laundering and beneficial-ownership obligations, and automatic information exchange reporting. Because a credit fund both receives capital from investors and advances it to borrowers, it must satisfy these obligations on both sides.

Valuation and Operational Discipline

Illiquid loans do not have a market price, so valuation is a matter of judgement, and judgement invites both error and abuse. A credible private credit fund relies on a documented valuation policy, an independent administrator, robust audit, and ideally independent valuation input for harder positions. Lax valuation is how investors are misled about the true health of a loan book until defaults force the truth into the open.

Equally important is the operational machinery of lending: monitoring covenants, tracking drawdowns and repayments, managing defaults and workouts, and maintaining the security over assets. This is unglamorous work, and it is precisely where credit funds succeed or fail. A strong manager treats loan administration and workout capability as core competence, not back office.

How HPT Helps

We advise managers and allocators on building private credit vehicles that hold up to scrutiny: selecting the domicile and partnership structure, designing open or closed liquidity that matches the loan book, planning the withholding tax position of cross-border lending, framing leverage within sensible limits, addressing lending-licence and substance requirements, and coordinating the administrators, auditors and counsel who keep the platform sound.

If you are launching or investing in a private credit strategy, we would be glad to help you structure it to protect both yield and capital.