Waterfall Analysis
What is a waterfall analysis?
A waterfall analysis is a financial model that maps how proceeds from a company sale or liquidation event flow through the cap table, respecting the priority order set by each share class's liquidation preferences. It shows, at any given exit price, exactly how much each shareholder receives after all claims are satisfied in sequence.
How do exit proceeds flow through the cap table waterfall?
| Layer | Who gets paid and in what order |
|---|---|
| 1. Debt and creditors | Venture debt holders, bank debt, outstanding liabilities paid first |
| 2. Liquidation preferences | Preferred shareholders receive preferences in reverse seniority (latest round first) |
| 3. Participating preferred (if applicable) | Participating preferred holders receive preference AND then share in remainder alongside common |
| 4. Common shareholders | Founders, employees with vested options, and converted preferred receive residual proceeds |
Why should founders run a waterfall model before signing a term sheet?
The same company with a $15M exit can produce radically different outcomes for founders depending on the preference stack structure. A company with $3M seed at 1x non-participating and $8M Series A at 1x participating preferred that sells for $15M distributes very differently from one with $3M seed and $8M Series A at 1x non-participating. The waterfall model is the only way to quantify this before signing.
How does the preference stack affect waterfall outcomes at different exit prices?
The preference stack is the ordering of liquidation preferences across investor classes. In a standard waterfall, Series B investors receive their preference first, then Series A, then Seed, and finally common shareholders (founders and employees) receive what remains. At a $10M exit with $15M in total preferences, common shareholders receive nothing. At a $20M exit with the same $15M preference stack, common shareholders split $5M pro-rata. At a $50M exit, all preferred converts to common (if non-participating) and the split is purely by ownership percentage. Understanding how exit price maps to founder proceeds requires modelling the waterfall at 5 to 10 different exit scenarios, not just the most likely or most optimistic one.
What inputs does a waterfall model require and how is it built?
A waterfall model requires: (1) the fully diluted cap table showing each shareholder's share count and share class, (2) the liquidation preference for each preferred class (typically 1x the invested amount), (3) the participation rights for each class (participating or non-participating), (4) the anti-dilution conversion ratios if applicable, and (5) a range of exit prices. The model then calculates, for each exit price, how much goes to each class in order of seniority, whether participation rights apply, and at what price each preferred class converts to common. Founders preparing for any acquisition discussion or investor negotiation should maintain a live waterfall model. Most cap table tools (Carta, Pulley) include waterfall modelling features. The NVCA model documents provide the standard economic terms that feed into any waterfall calculation.
What do founders get wrong with waterfall analysis?
The most common mistake is not running the waterfall until an acquisition offer is on the table. By then, the terms are fixed and the only variable is the exit price. Founders who run waterfall scenarios throughout the fundraising process can make better decisions: they know which round structures preserve common shareholder economics, which preference stacks create a dead zone (where exit proceeds between $X and $Y all go to preferred), and what exit price is required for employees to receive meaningful value on their options.
A second error is not accounting for transaction costs and escrow holdbacks when modelling the waterfall. In a $20M acquisition, $1.5M to $2M may be held in escrow for 12 to 24 months as an indemnification reserve, and $500,000 to $1M may go to legal fees and advisor commissions. The amount available for distribution through the waterfall is $16.5M to $18M, not $20M. Founders who model on the gross headline price overestimate what common shareholders actually receive.
Third: not updating the waterfall model when SAFEs or convertible notes convert. Bridge rounds, seed extensions, and SAFEs all convert into shares (at a discount or cap) when a priced round closes. Each conversion changes the fully diluted share count and the preference stack. Founders who model the waterfall using pre-conversion cap table data will have significantly inaccurate results.
How it works in practice
Case example: $20M acquisition, two scenarios compared
Scenario A (1x non-participating throughout): Seed investor ($1M at 1x non-participating, 10% ownership). Series A investor ($4M at 1x non-participating, 30% ownership). Founders: 60% common. Exit price: $20M.
Waterfall A: Seed preference: $1M. Series A preference: $4M. Remaining: $15M distributed pro-rata. Founders (60%): $9M + 0 = $9M. Total proceeds to founders: $9M.
Scenario B (Series A at 1x participating): Same structure but Series A has participating preferred. Waterfall B: Series A preference: $4M. Remaining $16M distributed: Seed gets 10% ($1.6M), Series A gets 30% ($4.8M) on top of preference, Founders get 60% ($9.6M). But seed also gets their $1M preference. Total to founders: $9.6M, only marginally better. At a $10M exit, founders get almost nothing under Scenario B.
Frequently asked questions
When should a startup model a waterfall analysis?
Before signing any term sheet, and again before any secondary sale, acquisition conversation, or wind-down. Founders who model the waterfall at term sheet stage can negotiate from an informed position rather than discovering the economic reality at closing.
Who builds the waterfall model?
Typically the fractional CFO or startup counsel, in collaboration with the founder. It requires the full cap table, all share class terms and conversion ratios, liquidation preference amounts and structure, and the current 409A valuation.
What is a participation cap and how does it appear in the waterfall?
A participation cap limits how much a participating preferred holder can receive in total, for example, 3x their investment. Once the cap is reached, the preferred converts to common for the remainder. The cap changes the shape of the waterfall at higher exit prices, often making a $30M+ exit better for founders than it first appears.
Does venture debt appear in the waterfall?
Yes. Outstanding venture debt principal and accrued interest must be repaid before any equity distributions. A company with $3M in outstanding venture debt at acquisition has $3M less to distribute to shareholders before the liquidation preference stack even begins.
How does a carve-out affect the waterfall analysis?
A carve-out sets aside a pool of proceeds for employees or founders before the standard waterfall distribution begins. If a $20M exit has a $1.5M carve-out, the waterfall runs on $18.5M rather than $20M, reducing what each preferred class receives. Preferred shareholders with large liquidation preferences may resist carve-outs precisely because they reduce the preferred recovery. Modelling the waterfall with and without a carve-out is essential when structuring any below-preference acquisition.
Related glossary terms
- Down Round, a new financing that reshapes the preference stack and changes the waterfall distribution at every exit price
- Drag Along Rights, compels all shareholders to participate in the sale whose proceeds the waterfall distributes
- Pre-Money Valuation, sets the share price that determines each investor's preference amount in the waterfall
Explore related Fintera content
- How to Prepare Financials for a Series A Raise, the full data room and diligence process where liquidation preference terms are reviewed
- Interim CFO vs Fractional CFO vs Contract CFO, which finance leadership model is appropriate when waterfall analysis and exit modelling are needed
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