Break Even Rent Calculator

Break-even rent is the minimum monthly rent you must collect to cover every dollar of property expense, with zero cash flow either way. Knowing this number before you purchase a rental property is essential: if market rents in the area are below your break-even, the property will lose money every month regardless of appreciation.

Core formula:

Break-Even Rent = Total Monthly Expenses / (1 − Vacancy Rate − Management Fee Rate)

Variable definitions:

• Total Monthly Expenses: the sum of all fixed monthly property costs (see below)
• Vacancy Rate: the percentage of months where the property sits empty (typically 5–10%)
• Management Fee Rate: the property manager’s monthly charge as a % of rent (typically 8–12%); enter 0 if self-managing
• The denominator: adjusts for the fact that not all potential rent is actually collected; vacancy and management fees reduce effective income

Monthly expense breakdown:

Worked example: Monthly costs: Mortgage $1,400, taxes $250, insurance $100, maintenance reserve $150 = $1,900/month Vacancy rate: 7%. Management fee: 10%.

Break-even rent = $1,900 / (1 − 0.07 − 0.10) = $1,900 / 0.83 = $2,289/month

If comparable properties in the area rent for $1,950/month, you are $339 short of break-even on the asking rent. The actual cash loss is smaller than that, and it is worth seeing why: at $1,950 you only ever collect 83% of it, so $1,618.50 comes in against $1,900 of expenses, a loss of $281.50/month or about $3,378/year.

The gap between $339 and $281.50 is the vacancy and management you no longer pay on rent you never charged. Subtracting market rent straight from break-even rent overstates the damage by roughly a fifth, which is an easy mistake to make and a good way to talk yourself out of a deal that is merely bad rather than terrible.

Interpreting the result:

• Market rent > break-even: Positive cash flow, the property can sustain itself
• Market rent = break-even: Zero cash flow, any vacancy or unexpected repair creates a loss
• Market rent < break-even: Negative cash flow, property depends entirely on appreciation to justify ownership

Improving break-even without raising rent:

• Increase down payment to reduce mortgage (most effective)
• Refinance at a lower rate
• Self-manage to eliminate the 8–12% management fee
• Appeal property tax assessment if overvalued
• Shop insurance annually for better rates

Cash-on-cash return (bonus metric): Cash-on-Cash Return = Annual Cash Flow / Total Cash Invested × 100 A healthy rental property typically targets 6–10% cash-on-cash return.