Find homes with hidden assumable loan savings.
Save hundreds of dollars a month, and get more home for your money by taking over someone else’s 4%, 3%, or even 2.5% mortgage.
Assumable loans (the kind you can take over) are out there, and RetroRate helps you find these hidden gems from Redfin, Zillow, and Realtor.com!
How it Works
1. Install in Seconds
It takes just a few clicks to add to your Chrome browser and it’s 100% free.
2. Browse like normal
Browse Redfin, Zillow, and Realtor.com and VHS will automatically highlight hidden assumable loan savings on listing detail pages.
3. We do the heavy lifting
Find your dream home, and RetroRate will help you and your agent secure the loan when you're ready.
* not affiliated or endorsed by Redfin, Zillow or Realtor.com.
Real Time
Loan Savings
See monthly savings with an assumable loan against a 30-yr fixed. Calculate downpayment instantly.
RetroMatch™ scores give an at-a-glance sense of your savings.
Expand
Your Search
Get more home for your money and find deals you haven’t considered.
Find nearby homes with a better rate.
RetroRate is currently available in ten states: AZ, CA, CO, FL, GA, ID, LA, NC, OR, and TX, with more coming soon!
Our dedicated Concierge Team works with your agent and lender to handle the transaction.
100% hassle free, keeping you in the loop every step of the way!
Serious about finding the home of your dreams?
Copyright: © 2023-present Assumable Technologies Inc., dba RetroRate. All rights reserved. Updated July 2025: By searching, you agree to the Terms of Use and Privacy Policy.
RetroRate and all RetroRate variants, and the Treehouse logo, are trademarks of Assumable Technologies Inc., registered or pending in the USPTO.
RetroRate is a licensed real estate brokerage in the State of Colorado. License #EC.100109448
Fine Print
CONTACT
416 13th Street, Unit 200A
San Diego, CA 92104
LEGAL
FOLLOW US
We typically use 7% as the prevailing “prime” rate in our calculations. Sample assumable calculations shown on RetroRate are created using interest rates from several years ago. Estimated monthly payments only indicate P&I and do not include taxes & insurance which will make them higher.
RetroRate Concierge works with buyers, sellers, and their agents to provide as smooth assumption experience as possible. RetroRate does not originate loans, determine or extend credit, or engage in lending or brokering. The original lender or servicer who holds the mortgage handles qualification and approvals of new buyers and makes the final decision to extend credit.