Money Tools

Vacancy Loss Calculator

Estimate monthly and annual rental income lost to vacancy from scheduled rent and a vacancy-rate assumption.

Updated April 16, 2026
Free online tool
Planning and research use

Why this page exists

Rental-property planning gets easier when a vacancy-rate assumption is translated into a concrete income-loss estimate instead of being left as an abstract percentage. This calculator helps visitors estimate monthly and annual vacancy loss from scheduled rent, vacancy rate, and optional unit count.

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

Vacancy loss calculator

Estimate monthly and annual rental income lost to vacancy.

Result

$111

Estimated monthly and annual vacancy loss from scheduled rent multiplied by the vacancy rate entered.

Estimated monthly vacancy loss$111

Estimated annual vacancy loss$1,332

Scheduled rent used$1,850

Vacancy rate used6.0%

$1,850 of scheduled monthly rent at 6.0% points to about $111 of monthly vacancy loss.
Across 12 months, that comes to roughly $1,332 of annual vacancy loss in this simple planning view.
Use the units field if you want the vacancy estimate to reflect more than one unit with the same scheduled rent.

This is a planning estimate only. Real vacancy loss depends on lease timing, concessions, turnover, unpaid rent, and how many units are actually vacant during the period.

Planning note

Last updated April 16, 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 scheduled monthly rent, vacancy rate, and optional unit count.

The calculator scales the scheduled rent to the units entered.

It applies the vacancy rate to estimate monthly vacancy loss and annualizes the result for a yearly view.

Understanding your result

This is a simple vacancy-loss estimate only. It is useful for property screening and budgeting, but actual vacancy loss can move with turnover, concessions, bad debt, seasonality, and leasing speed.

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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.

Stress-test a rental-property income plan

Vacancy loss can show how much rental income may be unavailable even when the list rent looks attractive.

Compare a conservative and optimistic vacancy assumption

Running two different vacancy-rate inputs can show how sensitive rental income is to occupancy assumptions.

Scale the estimate across multiple units

Adding a unit count can help turn one rent input into a broader property-level vacancy-loss estimate.

When to use it

Good times to run this calculator

Use this when you want a quick income-loss estimate before reviewing a rental property or updating a property budget.

It is especially useful when you need to translate a vacancy percentage into a dollar amount that is easier to compare with expenses and mortgage costs.

Assumptions and limitations

The estimate assumes the scheduled rent and vacancy-rate inputs describe the same period and property setup.

It does not capture bad debt, concessions, leasing fees, or unusual turnover patterns that may raise the real income drag.

Common mistakes

Avoid the usual input mistakes

Treating full scheduled rent as guaranteed income can make a property look stronger than it may perform in practice.

Using a low vacancy assumption without checking the market can understate the real income risk materially.

Practical tips

Run one case with a normal market assumption and another with a slightly worse case if you want a more resilient rental plan.

Use the result beside rental-yield and cash-flow tools so the vacancy impact shows up in the broader property picture.

Worked example

Walk through a realistic scenario

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

Estimate vacancy loss on one rental unit

A unit rents for $1,850 per month and the planning vacancy rate is 6%.

1. Enter the monthly scheduled rent and vacancy-rate assumption.

2. Multiply scheduled rent by the vacancy percentage.

3. Read the monthly result and annualize it for a yearly estimate.

Takeaway: The result turns vacancy from a percentage into a concrete planning cost that is easier to compare against the rest of the property budget.

FAQ

Common questions

How is vacancy loss calculated here?

The calculator multiplies scheduled rent by the vacancy-rate percentage entered and can scale the result by unit count.

Why show both monthly and annual vacancy loss?

Because some property decisions are reviewed month to month, while underwriting and screening often need a yearly view.

Does this include bad debt or nonpayment?

No. This tool only estimates vacancy loss from rent and vacancy-rate assumptions, not other collection problems.

Related tools

Keep comparing

Yield, cash-flow, and cap-rate tools help show how vacancy loss changes the broader property return picture.

Budget tools can help if the vacancy estimate is being used inside a larger household or property-planning review.

Money ToolsUpdated April 16, 2026