Physical vs Economic Vacancy: What Landlords and Investors Need to Know
Physical occupancy vs economic occupancy are two distinct measures of property performance. Physical occupancy tracks whether units are occupied. Economic occupancy tracks whether the property is collecting its full gross potential rent after concessions, bad debt, and below-market leases.
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Use physical vacancy to understand unit availability and occupancy rate. Use economic vacancy to understand actual income loss relative to gross potential rent — a critical distinction for NOI and property valuation.
Physical vs economic vacancy analysis is most important when a property has high physical occupancy but significant concessions or collection losses reducing effective income.
Economic occupancy is the better metric for lenders, appraisers, and investors who care about cash flow, debt service coverage, and NOI-based valuation.
A property with 96% physical occupancy can still carry 20% economic vacancy if tenants are receiving free-rent concessions, paying below-market rates, or accumulating bad debt — making physical occupancy vs economic occupancy a critical distinction.
High physical, low economic occupancy
A 200-unit apartment building with 194 units occupied shows 97% physical occupancy. But if 30 tenants received one month of free rent, 10 units are below-market legacy leases, and $8,000 in rent is uncollected as bad debt, economic vacancy can be 18-22% even though the building looks nearly full. This is exactly why comparing physical occupancy vs economic occupancy is essential for accurate NOI underwriting.
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When should I use Physical vs Economic Vacancy?
Use physical vacancy to understand unit availability and occupancy rate. Use economic vacancy to understand actual income loss relative to gross potential rent — a critical distinction for NOI and property valuation.
Which calculator should I open next?
Start with Vacancy Rate Calculator, then use the related calculator workflow to validate the result from another angle.
Use this guide with the full Property Performance Calculators
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