Money Tools

Rent Roll Calculator

Estimate gross and occupied rental income from unit count, average monthly rent, and occupancy assumptions.

Updated April 17, 2026
Free online tool
Planning and research use

Why this page exists

Rental-property planning gets easier when unit count, average rent, and occupancy are turned into a simple rent-roll estimate instead of being reviewed as separate assumptions. This calculator helps visitors estimate gross scheduled rent, occupied monthly rent, and annual occupied rent from a basic rent-roll setup.

Interactive tool

Run the estimate

Enter your numbers and read the result first, then use the sections below to understand what affects the outcome.

Calculator

Rent roll calculator

Estimate scheduled and occupied rental income from unit count, average rent, and occupancy assumptions.

Result

$12,276

Estimated scheduled and occupied rental income from units, average rent, and occupancy rate.

Occupied monthly rent estimate$12,276

Gross scheduled monthly rent$13,200

Annual occupied rent estimate$147,312

Units used8

Average rent used$1,650

Occupancy rate used93.0%

8 units at $1,650 each produces about $13,200 of gross scheduled monthly rent.
93.0% occupancy points to about $12,276 of occupied monthly rent and $147,312 per year.
Use this as a simple rent-roll estimate only, then refine it with concessions, delinquency, lease timing, and unit-specific rents if needed.

This is a simple rent-roll estimate only. Real collections can differ because of concessions, delinquency, bad debt, lease timing, and unit mix.

Planning note

Last updated April 17, 2026. Use this tool to compare scenarios and plan ahead, then confirm important details with the lender, employer, insurer, contractor, or other qualified provider involved in the final decision.

How it works

What the calculator is doing

Enter the number of units, the average monthly rent per unit, and the occupancy rate you want to use.

The calculator estimates gross scheduled monthly rent first, then applies occupancy to estimate collected or occupied rent.

It shows the occupied monthly and annual income estimates alongside the unit count, average rent, and occupancy used.

Understanding your result

This is a simple rent-roll estimate only. It can help with quick planning and comparison, but concessions, delinquency, unit mix, turnover, and unpaid rent can all change real collections.

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Examples

Ways people use this tool

Example scenarios help turn a quick estimate into a more useful comparison or planning step.

Estimate occupied rent from an average rent assumption

A rent-roll estimate can help turn unit count and average rent into a more useful monthly income planning number.

Compare different occupancy assumptions

Changing occupancy can show how sensitive projected rental income is to a few vacant units or slower lease-up.

Use it with valuation and cash-flow tools

Rent-roll estimates often make more sense when reviewed beside vacancy, cash-flow, and rental-yield tools.

When to use it

Good times to run this calculator

Use this when you want a quick gross-rent and occupied-rent estimate from a basic unit-and-rent setup.

It is especially useful when you need a first-pass rental-income figure before building a fuller cash-flow model.

Assumptions and limitations

The estimate assumes the average rent and occupancy rate entered are reasonable stand-ins for the property or portfolio being reviewed.

It does not model unit-by-unit rent variation, delinquencies, concessions, move-outs, or collection loss beyond the occupancy assumption.

Common mistakes

Avoid the usual input mistakes

Using a high occupancy rate without checking the local leasing reality can make the occupied-rent estimate look more reliable than it is.

Treating occupied rent like net cash flow can hide operating expenses, taxes, insurance, maintenance, and financing costs that still matter.

Practical tips

Run one version with optimistic occupancy and another with a more conservative occupancy rate so you can see how much the income estimate moves.

Use the rent-roll result beside vacancy, cap-rate, and property cash-flow tools if you want the income estimate to flow into a bigger property decision.

Worked example

Walk through a realistic scenario

A worked example shows how the estimate behaves when the inputs resemble a real planning decision.

Estimate occupied rent from a simple rent roll

An owner is evaluating 8 units at an average rent of $1,650 per month with an assumed occupancy rate of 93%.

1. Enter the number of units, average monthly rent, and occupancy rate.

2. Calculate gross scheduled monthly rent from units multiplied by average rent.

3. Apply occupancy to estimate monthly and annual occupied rent.

Takeaway: The result gives a cleaner rental-income estimate than looking only at unit count and average rent separately.

FAQ

Common questions

What does this calculator assume about rent across units?

It assumes the same average monthly rent per unit across the unit count entered, which keeps the estimate simple for planning.

What does occupied monthly rent mean here?

It is the gross scheduled monthly rent multiplied by the occupancy rate entered, so it is a simple occupied-rent estimate rather than a full collections forecast.

Does this include bad debt or concessions?

No. This is a simple rent-roll estimate and does not separately model delinquency, concessions, or collection loss.

Related tools

Keep comparing

Rental-yield, gross-rent-multiplier, cash-on-cash, and vacancy tools help show whether the rent-roll estimate supports the broader rental-property analysis.

Property cash-flow and cap-rate tools can add context when the rent-roll estimate is only the income side of a larger property review.

Money ToolsUpdated April 16, 2026