Resource
Equity waterfall model guide
A practitioner guide to modelling distribution waterfalls — American versus European structures, hurdles, catch-up provisions and clawback — written for teams whose models will be read by limited partners and their advisers.
Written by CA Pranay Bhansali, Founder & Principal, Volaxi — Chartered Accountant (ICAI), former senior buy-side research analyst.
Last reviewed September 2026 · LinkedIn
The guide in summary
| Topic | What it covers |
|---|---|
| Mechanics | The waterfall allocates proceeds; the operating case produces them. |
| Structures | American pays carry per deal; European defers it to the whole fund. |
| Tiers | Return of capital, preferred return, catch-up, then the carry split. |
| Hurdles | Preference compounds on unreturned capital at the agreement's frequency. |
| Catch-up | The catch-up is where carried interest actually materialises. |
| Modelling | Track balances per tier per period; keep distribution logic separate. |
| Reviewing | Test tier sequence, compounding basis and clawback completeness. |
01
What an equity waterfall actually allocates
An equity waterfall is the contractual order in which investment proceeds are distributed between investors and the sponsor. It converts a headline return into actual cash entitlements for each party, and small differences in its mechanics routinely move carried interest by more than the underlying operating case does.
A waterfall model tests the distribution terms, not the business. The operating case produces exit proceeds; the waterfall decides who receives them, in what sequence, and under which conditions. Treating the two as one model is the most common source of errors found in review.
02
American versus European waterfalls
The structural choice determines when carry is paid and what risk the sponsor bears on later underperformance.
Under an American (deal-by-deal) waterfall, carry is calculated and paid as each investment realises, subject to any escrow and clawback. Under a European (whole-fund) waterfall, all contributed capital and the preferred return on it must be returned before any carry is paid. The European structure defers carry and protects investors against early winners masking later losses; the American structure accelerates sponsor economics and places clawback risk on the sponsor.
American / deal-by-deal
Carry tested per realisation. Faster sponsor distributions, mitigated by escrow accounts and clawback obligations.
European / whole-fund
Carry tested on the fund as a whole. Investors receive capital and preferred return across all deals before carry begins.
Hybrid
Deal-by-deal carry with a whole-fund true-up, NAV-based test or partial escrow. Common in continuation and structured secondaries.
03
The standard distribution tiers
Most waterfalls follow a four-tier sequence. Each tier must be modelled with its own compounding, allocation and state, because the tier boundaries are where distributions switch character.
Return of capital
All contributed capital — or, under an American structure, capital attributable to the realised deal — is returned first.
Preferred return
A compounded hurdle, typically 8%, accrues on unreturned capital until the preference is fully paid.
Catch-up
The sponsor receives most or all of distributions until it has caught up to its carry percentage of profits paid to date. The catch-up is where carry actually materialises.
Carried interest split
Remaining profits split at the agreed ratio, commonly 80/20, until proceeds are exhausted.
04
Hurdle rates and compounding
The preferred return accrues on unreturned capital, not on committed capital, and compounds at the frequency stated in the limited partnership agreement. A model that compounds annually when the agreement specifies quarterly will understate the preference and overstate carry.
Where multiple hurdles exist — for example a second carry rate above a higher IRR — each hurdle requires its own IRR or money-multiple test applied to cumulative distributions, and the tiers interact: clearing a higher hurdle can restate the split on all profits, not only the excess.
05
Catch-up provisions and carry timing
A 100% catch-up pays the sponsor all distributions after the preference until the sponsor holds its full carry percentage of total profits. A partial catch-up — for example 80% — reaches the same equilibrium more slowly. With no catch-up, carry accrues only above the hurdle, which materially reduces sponsor economics at moderate returns.
Timing matters as much as the split. Under a European structure the catch-up can only occur once the whole fund has cleared capital plus preference; under an American structure it can occur on the first profitable exit, which is precisely why escrow and clawback exist.
06
Building the waterfall in a model
Build the waterfall as a closed sequence of columns: opening unreturned capital, contributions, preferred accrual, distributions applied tier by tier, and closing balances. Each tier calculation should reference only the tier above it and the cumulative position, so the sequence can be audited line by line.
State tracking
Carry unreturned capital, accrued preference and cumulative distributions as explicit balances per period — never derive them from totals alone.
IRR-based hurdles
Use a solve or staged logic that finds the distribution at which the investor IRR crosses each hurdle, with a fallback when the IRR does not converge.
Clawback test
Run a final true-up comparing carry paid to carry entitled at the whole-fund level, and hold the difference as a liability or escrow release.
Separate from operations
Feed the waterfall from exit proceeds and contribution schedules; keep operating assumptions upstream so the distribution logic can be reviewed independently.
07
Reviewing a waterfall model
A reviewer should be able to change the exit proceeds and see each tier respond in contractual order. Before a waterfall model is relied on, test the mechanics rather than the narrative.
Tier sequence
Are capital, preference, catch-up and carry applied strictly in the order the agreement specifies?
Compounding basis
Does the preferred return compound at the stated frequency on unreturned capital only?
Hurdle interaction
Do higher carry tiers restate prior splits where the agreement requires it, rather than applying only to the excess?
Clawback completeness
Does the model compare cumulative carry paid against whole-fund entitlement at the end, not only per deal?
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