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1% Rule Calculator

A fast first filter for rentals: monthly rent should be at least 1% of what you pay for the property, including repairs.

How the 1% rule works

Monthly rent ÷ (Purchase price + Repairs) ≥ 1%

The rule is a screening tool. It lets you sort through dozens of listings in minutes and spend real analysis time only on those that come close.

Example

A house costs $180,000 and needs $15,000 of work, so the all-in cost is $195,000. It would need to rent for $1,950 a month to pass. At $1,800 the ratio is 0.92%: close, and worth a full cash flow analysis.

Limits of the rule

The 1% rule ignores taxes, insurance and interest rates, which vary a lot between markets. A property in a high-tax state can pass the rule and still lose money; one in a low-tax area can miss it and cash flow fine. Always follow up with a cash flow calculation.

Common questions

Is the 1% rule still realistic?

In many expensive metros it's rare. Investors there often accept 0.7–0.8% and rely on appreciation, while many Midwest and Southern markets still offer 1% deals.

Should repairs be included?

Yes. Your real cost is the price plus what it takes to make the property rentable.

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The DealSheet investor toolkit: flip, BRRRR and rental templates you can save and share.

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