1% Rule Calculator – Quick Rental Property Check

Free 1% Rule Calculator for Rental Properties

Quickly screen a deal: enter the purchase price and monthly rent to see if it passes the 1% rule. Get an instant pass/fail plus helpful context for next steps.

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1% Rule Calculator

Enter the purchase price and monthly rent. The 1% rule says monthly rent should be about 1% of the purchase price.

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What is the 1% Rule?

A quick screening rule of thumb: a rental often looks attractive if the monthly rent is around 1% of the purchase price. For a $300,000 property, you'd want about $3,000/month in rent to "pass." It's a starting point—not a substitute for full analysis.

Why it matters

  • Speeds up initial deal screening
  • Compares properties across markets
  • Helps avoid negative cash flow traps

What to check next

  • Taxes, insurance, HOA, maintenance
  • Vacancy and property management
  • Financing terms and reserves

FAQ

Is the 1% rule realistic in 2025?

It depends on market and property type. Some cash‑flow markets still hit 1%+, while coastal and high‑appreciation areas often don't. Use it as a filter—then run full numbers.

Do I count rehab or closing costs?

For a more conservative screen, include rehab in your effective purchase price and re‑check the 1% ratio after ARV and stabilized rent.

What's a good next calculator?

After this quick check, use a full cash‑flow calculator for taxes, insurance, cap‑ex, management, and mortgage terms.

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