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Evidence-led analysis, market context, and practical property tax appeal guidance.
California Property Tax Appeal Deadlines for 2026
Find the 2026 California regular assessment appeal deadline for your county, based on the State Board of Equalization’s certified filing-period letter.
By AppealSealproperty-tax-appealscaliforniadeadlines2026
The Data Is In: Property Tax Appeals Are Easier Than You Think. Here is the data
Deep dive analysis of California property tax appeals through 1,651 actual cases in San Mateo County (2023), revealing success rates, settlement patterns, and whether minimal-effort appeals actually work across the state
By Philippproperty-tax-appealscaliforniasan-mateo-countydata-analysishomeowners
How I Discovered Free Money and Built AppealSeal
The story of discovering California property tax appeals and helping thousands of homeowners get money back
By Philippproperty-tax-appealscaliforniahomeownersstory