Rent Roll Calculator

Background.

Rent Roll Calculator is a checking tool for people trying to summarize occupied lease rent, concessions, recurring other income and physical occupancy from a current unit list. A rent roll is a unit-by-unit snapshot of leases and occupancy, not a stabilized market-rent forecast. That definition leads directly to the displayed relationship: “net scheduled monthly income = occupied lease rent − concessions + recurring other income; physical occupancy = occupied units ÷ total rentable units.”

The editable entries are occupied units on the rent roll, total rentable units, monthly scheduled rent from occupied leases, monthly concessions, monthly recurring other income. Use values from the document or measurement that governs this rent roll question; the defaults are only the worked fixture below. The main trap is specific to rent roll: vacant-unit market rent, bad debt, collection loss, expenses and net operating income are intentionally not imputed.

Freddie Mac, Modeling Multifamily Potential Rental Income; current rent roll, concessions and vacancy treatment documents the convention or governing rule used here. The rent roll output is a transparent scenario under those facts: it does not manufacture an unentered market price, professional determination, carrier quote, legal eligibility finding or locally adopted code value.

What is rent roll calculator?

Rent Roll is the relationship behind this decision: a rent roll is a unit-by-unit snapshot of leases and occupancy, not a stabilized market-rent forecast. On this page it means net scheduled monthly income = occupied lease rent − concessions + recurring other income; physical occupancy = occupied units ÷ total rentable units. Vacant-unit market rent, bad debt, collection loss, expenses and net operating income are intentionally not imputed; that is the line between the reported quantity and a broader real estate analysis.

How to use this calculator.

1. 01Confirm that “net scheduled monthly income = occupied lease rent − concessions + recurring other income; physical occupancy = occupied units ÷ total rentable units” matches the rent roll convention you need.
2. 02Replace the fixture values for occupied units on the rent roll, total rentable units, monthly scheduled rent from occupied leases, monthly concessions, monthly recurring other income with dated values from the governing record.
3. 03Keep all currencies, measurement units and time periods on the same basis before calculating.
4. 04Read net scheduled monthly income together with this boundary: Vacant-unit market rent, bad debt, collection loss, expenses and net operating income are intentionally not imputed.

The formula.

The calculation uses net scheduled monthly income = occupied lease rent − concessions + recurring other income; physical occupancy = occupied units ÷ total rentable units. In this rent roll model, the entered terms are occupied units on the rent roll, total rentable units, monthly scheduled rent from occupied leases, monthly concessions, monthly recurring other income. A rent roll is a unit-by-unit snapshot of leases and occupancy, not a stabilized market-rent forecast, which is why the relationship is presented under this name rather than as a universal alternative. Vacant-unit market rent, bad debt, collection loss, expenses and net operating income are intentionally not imputed. Calculations keep full decimal precision through the relationship and round only the returned display values.

A worked example.

Frequently asked questions.

References& sources.

1. [1]Freddie Mac, Modeling Multifamily Potential Rental Income; current rent roll, concessions and vacancy treatment. Retrieved 2026-08-07. access: open unless marked otherwise.
2. [2]HUD financial reporting guidance; gross potential rent and vacancy loss. Retrieved 2026-08-07. access: open unless marked otherwise.
3. [3]U.S. Internal Revenue Service. Publication 527, Residential Rental Property. Retrieved 2026-08-07. independence: primary; access: open.