If your home is worth less than the county's assessed value, California law lets you lower your tax bill. Checking is free, and your taxes can only go down, never up.
We pull your parcel and assessed value straight from county records.
Recent sales of homes like yours, screened against the county's evidence rules.
| Subj | Sale 1 | Sale 2 | |
| Living area | 2,368 | 2,104 | 2,682 |
| Beds / baths | 5/3 | 4/3 | 4/3 |
| Size adj | - | +11% | -10% |
| Adjusted | - | $1.69M | $1.89M |
We file it and track it to the county, then watch for the decision.
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When your home's value drops below its assessment, the county must lower it: free, and your right by law. But the rules are buried in a 25-page state manual, so most owners never claim it. We handle all of it, by the state's official Publication 30.
Yes. California Revenue and Taxation Code section 51 requires the Assessor to temporarily lower your assessed value when it exceeds your home's market value on January 1. Every county runs a free review process for this. We prepare the county's own form with evidence that follows the state's published rules, and you sign it.
We look at every recent, arm's-length sale of a similar home in your own city, not a neighboring town, since a county appraiser treats a different city as a different market. We adjust each of those sales to your home for the differences that matter: living-area size, bedrooms, bathrooms, age, and lot. Your opinion of value is the median of the adjusted sales, so no single unusual sale can swing it. The three sales we put on your form are the strongest and most similar of them, the ones an appraiser is least likely to challenge.
California assessors weigh residential evidence by State Board of Equalization Publication 30, the official guide for these reviews. It calls recent, arm's-length sales of similar homes the most reliable evidence, adjusted for real differences and dated near January 1. That is exactly what we build: same-city sales within the valuation window the law requires, each adjusted to your home for size, bedrooms, bathrooms, age, and lot, presented on the state's own comparison work sheet so the appraiser can check every figure. We deliberately do not adjust for things public records cannot confirm, such as condition or view, because an unsupported adjustment invites a challenge.
You get a complete, ready-to-file package, not just a number. It is the county's own review form, filled in, plus a professional comparable-sales work sheet in the format the state's appraisers use. The work sheet places your home next to the comparable sales, side by side, and shows line by line how each sale was adjusted to yours for size, bedrooms, bathrooms, age, and lot. It is the kind of exhibit a private appraiser or tax agent would charge hundreds of dollars to prepare. You review it, sign once, and we send it to the county. In counties that use an online portal, we hand you the same package to upload in about two minutes.
Nothing. The county's review itself is a free service the state provides, and SavePropTax is free during our pilot.
No. There is no fee, no penalty, and no risk in asking: the review can lower your assessed value or leave it unchanged. A decline-in-value review cannot raise your Prop 13 base value, and next year's assessment is set the same way whether or not you file.
Nothing changes: your taxes stay exactly as they are. You can also escalate to a formal appeal with the county's appeals board until November 30, and we will guide you through that too.
A decline-in-value review is an informal request, not an appeal. You give the Assessor your opinion of value and comparable sales, and a county appraiser reviews it on paper. There is no hearing and nothing to attend. A formal appeal is a separate, later step that only comes up if the Assessor's review does not lower your value and you disagree with that result. That one goes to the county's Assessment Appeals Board and can involve a hearing. Most homeowners never need it, and we will walk you through it if you do.
Your details are used once to prepare your form and are not sold or shared. Your signed form goes to the County Assessor and to you, nobody else.
Still have a question? Email support@saveproptax.com.