Operating reserve

An operating reserve is cash held back so a rental can keep paying its obligations when timing does not cooperate. It can cover a temporary rent shortfall, an insurance deductible, an urgent service call, or a tax or utility bill that arrives before expected receipts. The reserve is liquidity, not an expense: moving money into a separate savings account changes where the cash sits, but does not by itself mean the property incurred a cost.

It is broader and more accessible than a capital-expenditure reserve earmarked for a known roof, HVAC replacement, or other long-lived project. It is also different from lender escrow and tenant security deposits. Escrow is controlled for designated bills, while refundable deposits may be restricted or held for tenants under applicable law. Neither should be counted as free owner cash merely because it appears in the same bank balance.

There is no universal reserve amount that fits every landlord. A useful target depends on property age, deductibles, recurring bills, tenant concentration, seasonal costs, access to credit, and how quickly an owner could contribute more cash. Build the target from an expense calendar and plausible disruptions, then document which obligations the reserve is meant to cover instead of copying a fixed number from another property.

Revisit the reserve after withdrawals, acquisitions, insurance changes, major lease expirations, or a sustained change in expenses. Keeping it visible in cash planning prevents an owner draw or renovation payment from consuming money that the property needs for the next operating cycle.