European vs American Distribution Waterfalls

A private equity fund makes ten investments over its life. The first three are home runs, sold early for big gains; the last few, sold years later, turn out to be losers that barely return capital. The general partner (GP) earns carried interest — typically 20% of profits — as compensation. The question a distribution waterfall answers is deceptively simple: when, exactly, does the GP get paid that 20%? On the early winners as they're sold, or only after the whole fund's results are in? That single design choice, called the waterfall's structure, changes who bears the risk if the later deals go badly.

Think of it like a restaurant that pays its chefs a bonus for every dish that gets a great review, versus one that pools all reviews for the whole night and only pays a bonus if the average review across every dish clears a bar. The first pays out early and fast; the second waits and nets everyone's performance together before anyone sees a bonus.

The two structures

An American (deal-by-deal) waterfall calculates carry investment by investment. Every time a portfolio company is sold at a profit, the GP can receive its carry slice on that deal immediately, as long as that specific deal cleared its hurdle rate. Limited partners (LPs) get their capital back and preferred return on that deal first, then the GP takes its cut on the profit above the hurdle.

A European (whole-fund) waterfall doesn't let the GP take a dollar of carry until the fund as a whole has returned all LP capital across every deal — winners and losers together — plus the preferred return on the whole amount. Only after that full return-of-capital-plus-hurdle hump is cleared does carry start flowing, and it's computed on the fund's aggregate profit, not deal by deal.

$$\text{Carry paid (American)} = \sum_{i} 0.20 \times \max(0, \text{Profit}_i - \text{Hurdle}_i),$$ $$\text{Carry paid (European)} = 0.20 \times \max\!\left(0, \sum_i \text{Profit}_i - \text{Hurdle on total capital}\right).$$

In words: American sums up carry deal by deal, paying on winners regardless of what the rest of the portfolio later does. European sums profits first, across the whole fund, and only pays carry on what's left after every deal — including future losers not yet realized — is netted against the winners.

A worked comparison

A fund calls $100m from LPs across four deals of $25m each, with an 8% preferred return (hurdle) and 20% carry, ignoring the catch-up provision for simplicity.

Year 1: Deal A is sold for $60m, a $35m profit against its $25m cost. Under an American waterfall, the GP can take carry now: return $25m of capital plus $2m hurdle (8% of $25m) to LPs, and split the remaining $35 - 2 = 33$ (in millions) as $20\% \times 33 \approx 6.6$, i.e. $6.6m, to the GP, right away, with three deals still unresolved.

Year 4: Deals B and C are sold profitably, for $40m combined profit. Deal D, however, fails and returns only $10m against its $25m cost — a $15m loss. Under American, the GP already collected $6.6m of carry on Deal A in year 1 and takes further carry on B and C's profits in year 4, deal by deal, without Deal D's loss ever being netted against those payouts, because it happened after the fact.

Under a European waterfall, none of that carry is paid until the end. Aggregate profit across all four deals is $35 + 40 - 15 = 60$ (in millions), i.e. $60m, against $100m of total capital, well above the $8m aggregate hurdle, so carry is $20\% \times (60 - 8) \approx 10.4$, i.e. $10.4m total — paid once, at the end, computed on the net result including Deal D's loss. The GP under American structure walked away with money on Deal A alone that a European structure would have partly clawed back against Deal D's loss.

European: carry withheld until the fund closes out no carry paid on any single deal carry paid once, on the netted total

Where this actually bites

American waterfalls need a clawback provision as a safety valve — if a fund's early carry payments end up exceeding what the aggregate result justifies, the GP is contractually obligated to return the excess at the end. That clawback is a promise, not a mechanism that automatically enforces itself, and disputes over it are a recurring source of GP-LP litigation. LPs generally prefer European structures precisely because they remove the need to trust a clawback years down the line; GPs prefer American structures because carry paid early, even if later partly clawed back, still has time value the GP keeps.