1% Rule Calculator

Free 1% rule calculator. Instantly screen whether a rental's monthly rent hits 1% of the purchase price — the classic cash-flow filter.

Below 1%0.80%

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What is 1% Rule?

The 1% rule is the fastest first-pass screen in rental investing: monthly rent should be at least 1% of the total purchase price (including rehab). A $200,000 property should rent for about $2,000/month.

It won't tell you if a deal is good — but it tells you in seconds whether a deal is worth a closer look, which saves hours across a pile of listings.

Formula

1% rule: Monthly rent ÷ Purchase price ≥ 1% (0.01).

How to read it

  • Hitting 1%+ suggests a property has a real shot at cash flow; well under 1% usually means an appreciation play, not cash flow.
  • Pricey coastal metros rarely hit 1%; Midwest and Southern cash-flow markets often exceed it.
  • Passing the 1% rule is necessary, not sufficient — always follow with cash-on-cash and DSCR.

Frequently asked questions

Is the 1% rule still realistic?
In many expensive metros, no — few properties hit it. But in cash-flow markets it's alive and well, and it remains a useful quick filter everywhere for ranking which deals deserve a full analysis.
What's the difference between the 1% and 2% rule?
The 2% rule is a stricter version (rent ≥ 2% of price) that's very hard to hit in today's market — usually only in low-price, higher-risk areas. Most investors screen at 1%.