3.3 Waterfalls and incentive fee calculations

Credit managers are paid a management fee plus a performance fee, just like private equity managers. But the performance fee is often built differently. Many BDCs, and some private credit funds, pay an income incentive fee each quarter, calculated on the income the loans earn, alongside a separate fee on capital gains. Many private (non-BDC) credit funds instead use a whole-fund waterfall much like PE101 2.3's.

For fund accountants and BDC finance teams, the incentive fee is one of the most closely checked numbers each quarter; for auditors and LP-side analysts, it's one of the first to rebuild. This lesson works through the income fee step by step, then explains the capital gains fee and the waterfall. The terms used here are one common structure, not a standard: every fund's documents set their own.

The income incentive fee

The income incentive fee is paid on pre-incentive fee net investment income: the fund's interest and fee income (including OID accretion and PIK) less its expenses, interest on borrowing and the management fee, but before the incentive fee itself. It excludes realized and unrealized capital gains and losses.

The fee has three parts:

• Hurdle. The manager earns nothing unless income for the quarter exceeds a minimum return, commonly expressed as a percentage of NAV at the start of the quarter.
• Catch-up. Once income passes the hurdle, all (or most) of the next slice goes to the manager, until it has received its full percentage of the income.
• Incentive rate. Above the catch-up, the manager receives its percentage of all the income.

This mirrors the hurdle and catch-up in a PE waterfall (PE101 2.3), but it's measured on one quarter's income rather than on cumulative distributions, and it resets every quarter.

A worked example

The following example is illustrative. Kestrel Point Credit also manages a fictional BDC, Kestrel Point Capital Corporation, separate from Fund I. Suppose the BDC pays an income incentive fee on these terms:

Step 1: the hurdle. 1.5% × $300m = $4.5m. If pre-incentive fee NII is $4.5m or less, there's no fee.

Step 2: where the catch-up ends. With a full catch-up, the manager takes 100% of income above $4.5m until its fee equals 17.5% of total income. That happens when the fee (income − $4.5m) equals 17.5% × income, which gives:

End of catch-up = hurdle ÷ (1 − incentive rate) = $4.5m ÷ 0.825 = $5.4545m

At that point the fee is $5.4545m − $4.5m = $0.9545m, which is exactly 17.5% of $5.4545m.

Step 3: apply the right zone.

Three things to notice:

1. Inside the catch-up, investors are held at the hurdle. At $5.0m of income, investors keep exactly $4.5m; every extra dollar goes to the manager until the catch-up ends.
2. Above it, the fee is on all the income, not just the part above the hurdle. A common mistake is to calculate 17.5% × ($7.5m − $4.5m) = $0.525m, which ignores the catch-up.
3. The hurdle moves with NAV. Because it's a percentage of starting NAV, a fall in NAV lowers next quarter's hurdle. That's one reason getting NAV right (lesson 3.2) matters for fees too.

Pre-incentive fee NII includes non-cash income such as PIK and OID accretion, so a fee can be earned on income not yet received in cash. Some structures defer paying the part of the fee that relates to such income until the cash arrives. Some also add a total-return lookback, which can reduce the income fee when the fund has recent capital losses. Operations teams should build the calculation directly from the fund's own documents.

When reviewing a quarter's fee, auditors and LP-side analysts commonly check four things: that the hurdle uses the right starting NAV; that pre-incentive fee NII is net of the management fee and expenses but excludes gains and losses; that the catch-up has been applied, not skipped; and that the result agrees to the accrued incentive fee in NAV (lesson 3.2). A fee that looks out of line with prior quarters is usually explained by a one-off item, such as unamortized OID or a prepayment premium recognized on a repayment (lesson 2.1), which commonly counts as income for the fee.

Why capital gains are left out

The income fee deliberately ignores gains and losses on the loans themselves. There are two main reasons.

• Income and capital behave differently. Interest income is earned and largely received in cash each quarter. Gains and losses on loans, especially unrealized ones, depend on valuations (lesson 3.2) and can reverse. Paying a quarterly fee on them could reward the manager for marks that never become cash.
• Losses need to be netted. A lender's upside on any one loan is limited, while its downside can be large. So capital results are handled by a separate fee that nets gains against losses over time.

The trade-off is that, without a lookback, the income fee can still be earned in a quarter when the fund's loans are losing value. LP-side analysts often look at the incentive fee alongside the fund's total return for that reason.

The capital gains incentive fee

The second part, common in BDCs, is the capital gains incentive fee. It's commonly a percentage of cumulative realized capital gains, net of cumulative realized capital losses and unrealized capital depreciation, less any capital gains fees already paid. It's commonly calculated and paid annually.

In practice, for many credit funds, this fee is small or zero: loans are usually repaid at or near par, so realized gains are limited, and any unrealized depreciation reduces the amount on which the fee is calculated. In their financial statements, many BDCs also accrue a capital gains incentive fee as if unrealized gains were realized, even though it isn't payable yet; the accrued incentive fee in lesson 3.2's NAV could include such an amount. The exact definitions vary, so the fund's advisory agreement is the reference.

Whole-fund waterfalls in private credit funds

Many private (non-BDC) credit funds don't use an income fee at all. Instead, the GP receives carried interest through a whole-fund waterfall, the same structure PE101 2.3 worked through: LPs first receive their contributed capital, then a preferred return, then the GP receives a catch-up, and further distributions are split between LPs and the GP. Terms such as the carry rate and preferred return vary by fund.

The mechanics don't change, but credit funds put them to work differently:

• Frequent distributions. Because a credit fund distributes income regularly (lesson 3.1), the waterfall is run on each distribution using cumulative figures. In the early years, those income distributions commonly go to LPs, counting toward their return of capital and preferred return.
• Recycling. Principal that's recycled isn't distributed, so it doesn't pass through the waterfall until it's eventually paid out.
• Accrued carry in NAV. Between distributions, funds commonly accrue the carry that would be due if the fund were liquidated at NAV, which reduces LPs' capital accounts (lesson 3.2).

Whichever structure applies, the calculation is usually prepared by the fund administrator or finance team, reviewed by the manager, tested by auditors and often rebuilt by LPs.

Key terms

• Income incentive fee: A performance fee on a fund's income for the period, commonly with a hurdle and catch-up.
• Pre-incentive fee net investment income: Net investment income before deducting the incentive fee, excluding capital gains and losses.
• Hurdle: The minimum income, here a percentage of starting NAV, before any incentive fee is earned.
• Catch-up: The zone above the hurdle where all or most income goes to the manager until it has its full percentage.
• Total-return lookback: A feature in some structures that can reduce the income fee when the fund has capital losses.
• Capital gains incentive fee: A fee on cumulative realized gains, net of realized and unrealized losses.
• Whole-fund waterfall: A structure where LPs receive their capital and a preferred return before the GP receives carried interest.

Key takeaways

• Many BDCs pay a quarterly income incentive fee on pre-incentive fee NII, with a hurdle and catch-up; terms vary.
• With a $4.5m hurdle and 17.5% rate, the full catch-up ends at $5.4545m: $7.5m of income gives a $1.3125m fee, $5.0m gives $0.5m, and $4.0m gives nothing.
• Capital gains are excluded from the income fee and commonly covered by a separate, annual capital gains fee net of losses.
• Many private credit LP funds use a whole-fund waterfall instead, run on each regular distribution (PE101 2.3).