Two Deals. Same IRR. Very Different Ways to Make (Lose) Money Set a 15% IRR hurdle, and something predictable happens. Many deals clear it. We filter out lower IRRs and call it discipline. In reality, that screen favors deals where assumptions can be stretched without being obvious. Sponsors hit the number by adjusting four main levers: rent growth, expense cuts, exit cap rates, or debt terms. The question is not whether it underwrites. The question is whether it survives when timing slips. Before I open a full model, I run a 30-second screen. The income-to-appreciation ratio. Here is how to calculate it. Split the total return into two sources: Cash flow collected during the hold Appreciation realized at exit. Example: 8% annual cash-on-cash for four years = 32% from operations 2.0x equity multiple = 100% total return (Assuming steady cash flow on initial equity.) The remaining 68% depends on appreciation. 32% income / 68% appreciation That tells you what the deal is actually betting on. Long-term institutional data shows a durable pattern. Across decades, stabilized real estate returns are driven mostly by income, not exits. When a deal flips that profile and relies heavily on appreciation, it is no longer about execution. It is about the capital market's behavior. That can work. It just carries a different failure mode. Income buys time. Appreciation demands timing. Strategy vs Reality Core strategies skew income-heavy. Value-add often lands closer to balanced. Opportunistic deals accept appreciation dependence because risk is explicit. Trouble shows up when the math does not match the label. A value-add deal showing a 15/85 split is not being driven by operations. A “core” deal leaning on appreciation usually means price or leverage did the work. The Screen That Comes First Before rent comps, before T-12s, before debt terms, I calculate the split. If appreciation dominates, I ask three questions: What is the exit cap assumption? Does it compress? If so, why does it compress? If the answers are fuzzy, next deal. IRR tells you the destination. This ratio tells you the dependency. Two deals can show the same IRR. One survives delays. One needs everything to go right. That difference matters more than the number on the cover page.