Annual rental income after vacancy and operating expenses, before the mortgage payment.
NOI divided by price — the standard way to compare properties regardless of financing.
Annual cash flow after the mortgage, divided by the actual cash you put in.
NOI divided by the annual mortgage payment; most lenders want at least 1.20–1.25.
Price divided by annual gross rent — a quick screening number that ignores expenses.
Monthly rent at or above 1% of the purchase price is a decent early signal — a filter, not a decision.
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