Break-Even Calculator
Calculate your break-even occupancy rate and understand your property's safety margin.
How Many Empty Units Can You Survive?
Every rental property has a hidden threshold: the occupancy level at which income exactly covers expenses. Above it, you make money; below it, you write checks. Most landlords discover this number the hard way - during the vacancy that exposes it. This calculator finds it in advance by dividing your total monthly expenses by your maximum possible rental income, producing a break-even occupancy percentage and the minimum number of occupied units it represents.
Enter your unit count, average rent, and each monthly expense line - mortgage, property tax, insurance, maintenance, utilities, management, and anything else. Alongside the break-even point you get a plain-English risk rating and cash-flow projections at 100%, 90%, and 80% occupancy, so you can see exactly how much cushion the property carries at realistic vacancy levels.
Understanding Break-Even Analysis
Your break-even occupancy rate tells you what percentage of units must be rented to cover all expenses. A lower break-even point means more safety margin and less risk.
Property Details
Monthly Expenses
Only if you pay utilities
Break-Even Analysis
Key Metrics
Break-Even Point
Risk Assessment
Low Risk
Excellent safety margin
Why Break-Even Matters
Safety Margin
The lower your break-even point, the more room you have for vacancies, unexpected expenses, or market downturns.
Risk Management
Understanding your break-even helps you make informed decisions about rent pricing, expense reduction, and property improvements.
Investment Quality
Properties with break-even points below 75% are generally considered safer investments with better long-term potential.
Break-Even in Practice: A Fourplex Example
Picture a four-unit building where each unit rents for $1,500 - a maximum monthly income of $6,000. The monthly bills: $2,500 mortgage, $400 property tax, $150 insurance, $300 maintenance reserve, $200 owner-paid utilities, $300 property management, and $100 miscellaneous, for $3,950 in total expenses. Break-even occupancy is $3,950 divided by $6,000, or about 66% - in unit terms, three of the four units must stay rented. That is a moderate-risk profile: fully occupied, the building clears $2,050 a month, and even at 80% occupancy (three units in practice) it still covers itself with roughly $550 to spare.
Why the margin matters: real-world vacancy is not a steady average but a lumpy series of turnovers, make-ready weeks, and occasional non-payment. A property that breaks even at 66% absorbs a bad quarter without touching your reserves. The same building financed with a payment $1,100 higher would break even at 84% - meaning a single vacant unit plus one late payer puts you underwater. Same address, same tenants, radically different risk, purely because of the expense structure.
Frequently Asked Questions
What is a good break-even occupancy rate?
Below 60% is excellent - you could lose four units in ten and still cover every bill. Between 60% and 75% is a reasonable, financeable margin that most lenders and experienced investors are comfortable with. Above 85% is dangerous: one extended vacancy or a roof repair pushes you into negative territory. Many multifamily lenders specifically underwrite to a break-even occupancy below 85% when sizing loans.
How can I lower my break-even occupancy?
You have two levers: raise maximum income or cut fixed costs. On the income side, bring below-market units up to market rent at renewal and add income streams like pet rent, storage, or laundry. On the cost side, the mortgage is usually the biggest line - refinancing at a better rate or putting more down moves break-even more than trimming any other expense. Shopping insurance annually and protesting property tax assessments are the next most reliable wins.
Should I include vacancy and capital-expenditure reserves in the expense inputs?
Do not include a vacancy allowance - vacancy is exactly what break-even analysis measures, so baking it into expenses double-counts it. Do include a monthly reserve for maintenance and capital expenditures (roofs, HVAC, appliances), because those costs continue whether or not units are full. A common reserve is $100-200 per unit per month depending on property age.
Does break-even analysis work for a single-family rental?
Yes, but interpret it differently. With one unit, occupancy is binary - 100% or 0% - so a calculated break-even of 80% really means a vacant month costs you 80% of a month of rent in uncovered expenses. The practical use is sizing your cash reserve: at $2,000 rent and $1,700 in expenses, three months of vacancy burns about $5,100, so hold at least that much before counting the property as self-sustaining.