Glossary · Income and the rent roll

Rent roll

A rent roll is the unit-by-unit or tenant-by-tenant schedule of who occupies a property, what they pay, and when their lease ends. It is the primary evidence behind every revenue assumption in an underwriting model.

Updated August 6, 2026 · All terms

How it works

A multifamily rent roll lists unit number, floor plan, square footage, occupancy status, contract rent, any concession or discount, move-in date, lease expiration and often the balance owed. A commercial rent roll lists tenant, suite, area, base rent, escalation schedule, recovery structure, commencement and expiration, options and any free rent remaining. In both cases the file is a snapshot on one date, which is what makes it evidence rather than a projection.

Read it for the four things a summary page cannot show you. The unit mix and its rent spread tells you whether an average rent is representative or is being pulled by a handful of units. The expiration schedule tells you how much of the loss to lease is actually reachable in the next twelve months and whether a dangerous share of the income rolls in one quarter. The concession column tells you what it currently costs to fill a unit. The balance column tells you whether a tenant is paying at all.

The rent roll and the trailing statement should reconcile, and when they do not, the difference is the finding. Annualise the current rent roll and compare it to the trailing twelve months of collected rent. A rent roll materially above trailing collections means either rents were pushed very recently or the roll includes units that are not paying.

Worked example

Reconciling the rent roll to collections

Illustrative. Current rent roll annualised against the last twelve months of collected rent.

Occupied units x contract rent x 12$4,528,000
Trailing twelve months rent collected$4,281,000
Difference5.8%$247,000
Explained by rents raised in the last six months$168,000
Explained by concessions not shown on the roll$41,000
Unexplained$38,000

Most of the gap has a legitimate cause. The residual is what to ask about, and on this property it turned out to be four units carried as occupied that were more than sixty days delinquent.

Conventions worth knowing

  • Ask for the rent roll as of the same date as the trailing statement. Two different dates make the reconciliation meaningless.
  • A native spreadsheet export is worth asking for. A rent roll delivered as a flattened image is harder to check, and the checking is the point.

The common mistake

Averaging the rent roll instead of reading it

Collapsing the file to a single average rent throws away every piece of information it contains. A $1,845 average can be 220 units at $1,845 or it can be 140 renovated units at $2,030 and 80 unrenovated units at $1,521, which is a completely different deal with a completely different renovation budget and a completely different achievable rent. Build the unit mix first, then the expiration schedule, then the average. The average is an output of the analysis, not an input to it.

Related terms

Every figure, traced to its source

Altyst computes these in exact decimal arithmetic, not with a language model, and clicking any number shows the formula behind it.