Break-Even Ratio Calculator

The break-even ratio tells you how much can go wrong before a deal stops covering its bills, and this free calculator shows you exactly where that line is. Enter your expenses, debt service, and gross income, and you get the ratio.

I think of break-even as the deal's margin of safety. It answers a question every lender and every careful investor asks: how far can income fall before I am writing checks to keep the property afloat? Here is the tool, then how to read it.

Break-even ratio, in one line: it is operating expenses plus debt service, divided by gross operating income. An 85% break-even ratio means you need 85% of your income just to cover costs.

Why it matters: the lower the ratio, the more cushion you have. It effectively tells you the occupancy you need to avoid feeding the property out of pocket.

The Break-Even Ratio Formula

The formula is break-even ratio = (operating expenses + debt service) ÷ gross operating income. If your operating expenses and loan payment together come to $170,000 and your gross operating income is $200,000, your break-even ratio is 85%. That means you can lose up to 15% of your income before the property stops covering itself.

Read as an occupancy figure, that 85% is roughly the occupancy you must maintain to break even. The lower the ratio, the more vacancy or rent loss the deal can absorb before it turns into a cash drain.

How to Use the Break-Even Ratio

I use the break-even ratio as a stress test. A deal with an 80% break-even ratio can weather a downturn far better than one at 95%, where even a couple of vacancies push you into the red. Lenders watch it for the same reason. If your break-even ratio is uncomfortably high, the fixes are the usual levers: grow income, cut expenses, or take on less debt. It pairs naturally with the debt service coverage ratio as a picture of downside risk.

Watch: How I Analyze ANY Commercial Property in Under 5 Minutes

Break-Even Ratio FAQ

How do you calculate the break-even ratio?

Add operating expenses and debt service, then divide by gross operating income. If costs total $170,000 and gross income is $200,000, the break-even ratio is 85%.

What is a good break-even ratio?

Lower is safer. Many investors and lenders like to see a break-even ratio at or below roughly 85%, which leaves a cushion of income before the property fails to cover its costs.

What does the break-even ratio tell you?

It tells you roughly the occupancy or share of income you need just to cover operating expenses and debt service, so it is a direct measure of a deal's margin of safety.

How is break-even ratio different from DSCR?

DSCR measures how many times income covers the loan payment. Break-even ratio measures how much of your income is consumed by all costs, including operating expenses, so it captures total downside risk.

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Use it alongside the DSCR calculator to gauge downside risk, or see all the commercial calculators.