Cash Flow Shortfall

A cash flow shortfall happens when a property's collected income can't cover its operating expenses and debt service. The negative difference is the check you write to keep the property running.

shortfall = total_outflows - collected_income   (when outflows are larger)

Temporary vs structural

A temporary shortfall (a vacancy, a lease-up period, a big repair month) is a reserves problem: predictable, plannable, survivable. A structural shortfall, where the property's income simply can't support its financing and operations, is a deal problem that reserves only postpone.

Knowing which one you're looking at is the point of running the number: it tells you how much cash reserve to hold, whether the loan terms fit the property's income, and whether you'd be buying an investment or an obligation.

Where you'll see it in Rescover

Analyses project total shortfall (before and after tax) across your hold period, so a deal that needs feeding shows its appetite up front, while it's still a decision instead of a surprise.