WiseProp

Appeal deadline November 30, 2026 · Los Angeles County

Bought your home in 2021–2024? The county may be taxing you on a price it's no longer worth.

Free 10-second check against the county's own 2026 roll. We compare your assessed value with recent sales of similar homes in your zip and tell you plainly whether an appeal is worth your time.

No sign-up to see your result. Street address only — no unit or city.

1 in 4

of 2022–2024 buyers we sampled in the West Valley were assessed above comparable sales

~$1,600/yr

median estimated overpayment among flagged homes in that sample

$46

LA County filing fee. The appeal is free to request from the Assessor; the Board hearing takes ~10 minutes

How the check works

  1. Step 1

    We find your parcel

    Your address maps to the county's Assessor Identification Number and this year's assessed value.

  2. Step 2

    We pull recent comparable sales

    Under Prop 13 a sale resets a home's base value to its price, so parcels with a 2025–2026 base year are recent sales. Same zip, same type, similar size.

  3. Step 3

    We tell you the honest answer

    If the comps say you're assessed above market by more than 5% and $10,000, we flag it. If not, we say so — most long-time owners are fine.

If you are over-assessed

California lets you appeal a “decline in value” (Prop 8) once a year. LA County's window closes November 30, 2026. WiseProp builds the whole filing for you: the comparable-sales table with adjustments, a pre-filled BOE-305-AH form, a valuation argument, filing instructions, and a script for the hearing. You file it yourself; we never contact the county for you.