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The WaterfallOne Blog

Short reads on waterfall math, spreadsheet problems, and distribution operations for real estate GPs.

4 min read Spreadsheet Pitfalls

5 Waterfall Mistakes Hiding in Your Spreadsheet

The five most common Excel errors that cause waterfall miscalculations, and how to catch them before your auditor does.

4 min read Operations

What Happens When an LP Questions Your Distribution Math

At some point, an LP will ask how their distribution was calculated. The problem isn't the question. It's how long it takes you to answer.

3 min read Spreadsheet Pitfalls

Why Your Excel Waterfall Breaks at 10+ Investors

Excel waterfalls work fine for 3 investors. At 10 or more, rounding errors compound and allocations stop tying out.

VERIFIED
2 min read Audit & Compliance

What Auditors Actually Want from Your Distribution Records

Fund auditors don't want your spreadsheet. They want locked records, clear allocation logic, and a reconstructable trail.

2 min read Operations

The Hidden Costs of Manual Waterfall Calculations

Manual waterfall calculations cost more than time. They cost confidence, LP trust, and the risk that a past distribution was wrong.

Yr 1 Yr 2 Yr 3 Yr 4 Simple Compound gap
2 min read Waterfall Math

Simple vs Compound Preferred Return: How the Math Works

Simple vs compound preferred return changes LP payouts. Here's the math with real numbers so you can check your own model.

ROC Pref Catch-Up Promote
4 min read Waterfall Math

How GP Catch-Up Works in Real Estate Waterfalls

GP catch-up is one of the most misunderstood waterfall mechanics. See how it works with two common structures and real numbers.

Deal 1 Deal 2 Deal 3 Promote Clawback
3 min read Waterfall Math

Clawback Provisions: When LPs Take Back GP Distributions

Clawback provisions let LPs reclaim GP distributions when final fund returns fall short. Here's how they work and why tracking matters.

Close LP A LP B (mid) Dist. LP A pref accrual LP B accrual
2 min read Operations

What Happens to Your Waterfall When an Investor Joins Mid-Fund

New LPs joining mid-fund change pref accrual timing, capital account basis, and tier thresholds for everyone.

IRR 12.8% XIRR 14.1% 13% Hurdle illustrative
3 min read Waterfall Math

XIRR vs IRR: Why the Formula You Choose Changes Your Waterfall

IRR and XIRR can return different results on the same cash flows. When your waterfall has IRR hurdles, the formula matters.

Standard LP A: 8% pref LP B: 7% pref LP C: 15% promote MFN cascades
4 min read Operations

How Side Letters Change LP Allocation Math

Side letters create LP-specific waterfall terms that override the standard LPA. Here's how they affect allocation calculations.

Q1 Q2 Q3 Q4 True-Up delta
2 min read Operations

Year-End Distribution True-Up: What Controllers Actually Do

Year-end true-ups reconcile quarterly estimates against actual performance. Here's what the process looks like for controllers.