Glossary
Capital Expenditure Reserve (Replacement Reserve)
A capital expenditure reserve, or replacement reserve, is an amount set aside regularly to pay for future replacement of building components and equipment, such as roofs, HVAC systems, parking lots and appliances. Underwriters deduct it from NOI to reach net cash flow, and lenders often require it to be funded monthly into an escrow.
Formula
Example
A 200-unit apartment property is underwritten with a reserve of $300 per unit per year, or $60,000. NOI before reserves is $1,500,000, so underwritten net cash flow is $1,440,000. At a required 1.25x DSCR, maximum annual debt service falls from $1,200,000 ($1,500,000 / 1.25) to $1,152,000 ($1,440,000 / 1.25), reducing the supportable loan.
How it is used in underwriting
Reserves exist because capital costs are lumpy: a property may spend little for several years and then need a new roof. Treating capital spending as zero in good years overstates sustainable cash flow. Underwriters base reserves on property age, condition and the findings of a property condition report, which estimates the remaining useful life and replacement cost of major components. Lenders may require an upfront deposit for immediate repairs plus ongoing monthly deposits. For valuation, appraisers and buyers often deduct reserves before applying a cap rate, though conventions vary by market and property type.
A common mistake is comparing NOI after reserves with NOI before reserves, especially when applying market cap rates. Another is using a generic reserve for an older property that needs major work, rather than funding a specific capital plan. In commercial properties, separate reserves for tenant improvements and leasing commissions are typically required in addition to replacement reserves. For operating businesses, the analogous concept is maintenance capital expenditure, which underwriters deduct from EBITDA to estimate free cash flow. Distinguishing maintenance spending from growth spending is a key judgment in both cases.
Typical benchmarks
Lenders commonly underwrite multifamily replacement reserves of roughly $250 to $350 per unit per year, often more for older properties, and commercial reserves on a per square foot basis informed by a property condition report.
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Frequently asked questions
Are replacement reserves included in NOI?
Practice varies. Many investors and appraisers calculate NOI before reserves, while lenders typically deduct reserves to arrive at underwritten net cash flow used for DSCR and loan sizing. Always confirm which convention is being used, especially when comparing NOI or applying a market cap rate.
How much should be set aside for capital reserves?
The right amount depends on property type, age and condition. Lenders often use minimum per unit or per square foot amounts and adjust based on a property condition report. Older buildings with major systems near the end of their useful lives generally need higher reserves or a specific capital plan.
What is the difference between capex and repairs and maintenance?
Repairs and maintenance are routine costs to keep a property operating, such as fixing a leak, and are operating expenses. Capital expenditures replace or improve major components with multi-year lives, such as a new roof or HVAC system, and are typically funded from reserves rather than included in operating expenses.
Related terms
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