Other services take a cut of your savings.
We charge $45. Once.
Most property tax appeal companies charge 25–35% of whatever you save — hundreds of dollars, every year. Overassessed gives you professional-grade comparable sales analysis, step-by-step filing instructions, and a complete evidence packet for a flat $45. You keep every dollar you save.
If you save $2,208/year
$2,208
you keep
$2,163
you keep
$2,108
you keep
$2,059
you keep
$1,546
you keep
Ownwell fee calculated at 30% (typical CA rate). Actual savings vary by property.
$45 once, not 30% of your savings every year
Full-service companies like Ownwell charge 25–35% of whatever you save — and they charge it every year. On a $2,208 reduction, that’s $552–$773 going to the service, not to you. Overassessed charges $45 once — about 2% of what the average homeowner saves in the first year. After that, every dollar is yours.
Built for California, not stretched across 50 states
California’s property tax system is different. Prop 13 caps your annual increases at 2%. Prop 8 lets you request a temporary reduction when market values drop below your assessed value. National tools treat every state the same. Overassessed is built around how California counties actually assess property, what the assessor’s office expects to see, and the specific forms and deadlines for your county.
You file it. It’s easier than you think.
All California counties have an informal review process — you contact the assessor’s office with your evidence, and a certified appraiser reviews your case. No hearing. No courtroom. No lawyer. Our Filing Guide gives you the comparable sales data, the evidence packet, and the exact steps for your county. The filing itself takes about 10–15 minutes. The hard part was the research — and we already did that.
Everything you need to file your appeal
Start with a free check. When you're ready, get everything you need to file.
FREE CHECK
Free check
Instant qualification check
- Assessed value lookup
- Market value estimate
- Savings estimate
$45
Complete Filing Guide
Everything you need to file your appeal today
File your appeal in about 10 minutes
- Comparable sales ranked by strength for your case
- Dollar-for-dollar adjustments for each comparable
- Copy-and-paste filing instructions
- Ready-to-submit value narrative
- Talking points if the assessor pushes back
- PDF evidence packet with neighborhood map
At average savings of $2,208/year, the Filing Guide pays for itself in about 8 days.
Prefer to review the data on your own? The Comparable Sales Report is available for $8.
Common questions
You absolutely can — and we encourage it. All California counties offer an informal review process where you contact the assessor’s office with comparable sales data and a certified appraiser reviews your case. It’s free and it works. The hard part is gathering the right comps, understanding Prop 8 vs. Prop 13, and knowing what numbers the assessor actually looks at. Overassessed does that research for you instantly. Think of us as the preparation step — whether you go informal or formal.
Convenience has a price. On a typical $2,208 annual savings, Ownwell charges $552–$773. Every year. They also auto-enroll you annually — you have to actively cancel to stop paying. Overassessed costs $45 once, and you keep every dollar you save. The filing process in most California counties takes about 10–15 minutes using our step-by-step guide. That’s a $500+ difference for 15 minutes of effort.
AppealSeal is California-specific at $100 but doesn’t include a personalized case analysis or a cover letter. Overassessed is California-specific at $45, includes everything from comparable sales to a filing guide with a full case analysis and evidence packet — the most affordable and most complete option available.
No. California’s appeal process is designed for homeowners to handle themselves. The California Board of Equalization confirms you can represent yourself at any hearing. Most residential appeals are resolved through informal review or by mail — no courtroom, no confrontation. You submit evidence, the county reviews it, and you get a decision.
Check your property — it takes 10 seconds
No account. No commitment. Just your address and an honest answer about whether you're overpaying.
Property data from county records via BatchData. Updated daily.