Tool

First Deal Screener (1% & 50% Rules)

Run any property through the two back-of-the-envelope rules investors use to kill bad deals fast — plus a rough cash-on-cash return.

Paste in a price, the rent you expect, and your own lender's payment estimate. The screener applies the 1% rule, the 50% rule, and a cash-on-cash estimate. It is a first filter, not a final answer — always re-run with real taxes and insurance.

How to read this tool

Adjust the inputs and the results update instantly. Every figure is an educational estimate — it does not reflect live interest rates, a payment quote, or a loan offer, and your real numbers will differ. Use it to build intuition, then verify with a licensed professional before you act.

This calculator is for educational estimates only. It does not display live rates or payment quotes and is not a loan offer. Verify all figures with a licensed professional.

Going the DSCR route?

When you're ready to compare investor-loan options, our data partner breaks down how DSCR loans actually qualify a rental using the property's own cash flow instead of your W-2.