Get in touch
Have a question about your results, your county, or how Overassessed works? We're happy to help.
Before you email
You might already have your answer:
Is my county supported?
Overassessed currently supports Alameda County. Enter your address on the homepage to check — if your county isn't live yet, you can join the waitlist.
How does the informal review process work?
Most California counties let you request an informal review directly with the assessor's office — no formal appeal needed. Our Filing Guide includes the exact steps for your county.
I bought a Data Package or Filing Guide and have a question about my results.
Email us at hello@overassessed.co with your property address and we'll take a look.
Haven't checked your property yet?
Check my property