The direct answer
Rent roll analysis goes beyond adding current rent. A strong review compares market rent with in-place rent, identifies delinquency and concessions, maps lease expirations, checks vacancy, and tests whether the schedule agrees with actual collections and the operating statement.
Compare in-place rent with market evidence
A gap between contractual rent and supportable market rent can represent upside or downside, but it is not automatically collectible. Renewal probability, local demand, unit condition and legal constraints can affect whether the gap can be realized.
To apply the approach to an editable scenario, use the Rental Property Calculator. For the neighboring question, explore Rent Estimate Calculator.
Identify income that is scheduled but not economic
Delinquencies, free-rent concessions, employee units, model units and chronic vacancy can reduce economic income even when the gross scheduled rent appears strong. Flag each item separately rather than combining every shortfall into one vacancy percentage.
Build a lease-expiration timeline
Group expirations by month, quarter or year to identify rollover concentration. Large clusters of expirations can create leasing costs, downtime and concessions that are invisible in a single current-month total.
Worked example
A property may show $50,000 of monthly in-place rent versus $54,000 of market rent, suggesting $4,000 of mark-to-market upside. If $3,000 is delinquent and several leases expire next month, the practical near-term upside is much less certain.
Common mistakes and limitations
Do not call the difference between market rent and in-place rent guaranteed revenue. Market evidence, lease terms and renewal outcomes still matter.
Scenario estimator based on user inputs. It is not an appraisal, lending decision, tax calculation or investment recommendation.
Frequently asked questions
What is the first thing to compare on a rent roll?
Start with in-place rent, market rent, occupancy, delinquency and lease expiration dates, then reconcile the totals to actual collections.
Can a rent roll show hidden risk even when occupancy is high?
Yes. Below-market rents, expiring leases, concessions and delinquency can create risk despite high physical occupancy.
Sources and further reading
The article’s examples are illustrative arithmetic. The references below provide context for operating, valuation or transaction concepts; they do not endorse the assumptions or the calculator.
- Office of the Comptroller of the Currency — Comptroller's Handbook — Commercial Real Estate LendingNOI, direct capitalization, cap-rate valuation and DCF concepts for commercial real estate.
- Appraisal Institute — Basic Formulas — Income CapitalizationIncome/cap-rate/value relationships, gross income multiplier and debt-coverage formula references.
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