What is the difference between a rent roll and a T-12 statement?

A rent roll is a point-in-time snapshot of unit leases, tenant names, contractual rents, deposits, and balances owed. A T-12 (trailing twelve months) statement shows the historical operating income and expenses actually collected and spent over the preceding year.

What are the most common rent roll red flags?

Major red flags include: 1) Lease expiration clustering (multiple leases terminating simultaneously), 2) Wide loss-to-lease gaps with long-tenured residents resistant to market increases, 3) Chronic delinquency patterns, and 4) Non-arm's-length or employee-occupied units.

How to Read a Rent Roll and T-12 Like an Underwriter

Document Pair

Rent Roll + T-12

The Core Evidence Set

What It Proves

In-Place Rent

Not Asking Rent

Common Gap

Roll vs. Deposits

Rarely Checked

Watch For

Hidden Concessions

Inside Gross Rent

Two documents separate what a listing claims a property earns from what it actually earns: the rent roll and the trailing twelve-month operating statement, or T-12.

Both are provided by the seller. Neither is audited. And both are compiled by someone whose job, in that moment, is to make the deal look as good as possible — which is a very different job from telling a buyer the truth.

This is not a document to skim once and file away. It is the primary evidence in the case for or against the deal, and it needs to be read like evidence, not marketing.

Rent Roll Red Flags

FLAG 1

Lease Expiration Clustering

When a large share of leases expire inside the same two- or three-month window, the buyer inherits a concentrated re-leasing and vacancy event, not a stabilized income stream.

FLAG 2

Wide Loss-to-Lease Gaps

A large gap between current rent and market rent can mean upside from turnover — or it can mean long-tenured residents who will move rather than pay a market-rate reset.

FLAG 3

Chronic Delinquency Patterns

A rent roll where a meaningful share of units carry a persistent balance every month describes a collection and management problem, not a one-off.

FLAG 4

Non-Arm's-Length Occupants

Employee-occupied or related-party units listed at below-market or $0 rent distort what a new owner will actually collect.

The Reconciliation Checklist

1. Match Roll to Bank Deposits

Trace 3 recent months of bank deposits against rent roll collections.

2. Pull Signed Leases for Top Units

Confirm term, rent, and concessions match the summary roll.

3. Cross-Check Utility Bills

Compare invoices to the T-12 line to catch coming resets.

4. Rebuild NOI From Sources

Recompute net income independently with our Free NOI Calculator rather than trusting the summary tab.

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