Last updated: August 2026
Operating yield and buyer cash flow answer different questions.
Operating Earnings Yield, labeled CAP Rate for income real estate, compares operating income with asking price before financing. Buyer cash flow shows what remains after operating expenses, debt service, and modeled tax assumptions.
One business, two different questions
A fictional business has $180,000 of annual operating earnings and a $900,000 asking price, so Operating Earnings Yield is 20.0% before financing. The buyer contributes $300,000 and the loan payment is $7,600 per month.
After the $7,600 monthly debt payment, before-estimated-tax buyer cash flow is $7,400 per month. The 20.0% operating yield answers how much operating income the asking price buys; $7,400 answers how much monthly cash remains before the modeled tax estimate under this buyer's financing.
What operating yield measures
Operating Earnings Yield is annual operating earnings divided by asking price. Income real estate uses the familiar CAP Rate label and NOI as the earnings term. The metric separates operating performance from the buyer's financing choices.
A buyer's review also includes debt service, cash contribution, estimated tax, additional purchase cash, and cash flow before and after estimated tax.
What cash flow measures
Before-estimated-tax cash flow starts with operating earnings and subtracts debt service. The modeled tax estimate is floored at zero, and NIAT shows the after-estimated-tax result.
A positive operating yield can still lead to an exact target miss if debt service is high, expenses are understated, or the buyer's required cash-flow threshold is not met.
Why the two metrics can disagree
Two buyers can look at the same opportunity and see the same operating yield but different cash-flow results. The difference comes from financing terms, entered cash contribution, tax assumptions, and each buyer's exact targets.
First-pass review should keep before-financing yield, Actual DSCR, and buyer cash flow distinct. The same operating earnings can support one buyer's loan structure and miss another buyer's coverage target.