A rent estimate that is $200 too high turns a cash-flowing deal into a monthly loss. Listing agents quote the optimistic number; you need the one the data supports.
Paste the address. The verdict shows rent estimates from each source, side by side, free.
Free verdict. No signup. No card.
Sample verdict. Yours runs on the address you enter.
RentCast and Zillow rent estimates for the exact address. When they disagree by more than 15%, the verdict flags it.
In-range sources are averaged; an outlier is dropped. If no source has rent for the address, the field reads unavailable.
The rent feeds the long-term rental snapshot so you see what it supports after taxes, vacancy and the mortgage.
What Early Users Are Saying
“I used to spend 45 minutes per property on a spreadsheet. DealGapIQ gives me a better answer in under a minute. The Deal Gap concept alone changed how I evaluate deals.”
Michael R.
Portfolio investor · 12 properties
“The Income Value calculation is something I’ve never seen anywhere else. Knowing exactly where breakeven sits — before I even tour a property — saves me from chasing bad deals.”
Tamara L.
BRRRR investor · Denver, CO
“I was skeptical of another calculator tool. But seeing the actual assumptions behind the numbers — and being able to change them — that’s what convinced me to pay for Pro.”
James K.
CPA & buy-and-hold investor
