THIS ASSESSMENT REDUCTION FILING SERVICE IS NOT ASSOCIATED WITH ANY GOVERNMENT AGENCY. IF YOU DISAGREE WITH THE ASSESSED VALUE OF YOUR PROPERTY, YOU HAVE THE RIGHT TO AN INFORMAL ASSESSMENT REVIEW, AT NO COST, BY CONTACTING THE ASSESSOR’S OFFICE DIRECTLY. IF YOU AND THE ASSESSOR CANNOT AGREE TO THE VALUE OF THE PROPERTY OR IF YOU DO NOT WISH TO CONTACT THE ASSESSOR YOU CAN OBTAIN AND FILE AN APPLICATION FOR CHANGED ASSESSMENT WITH THE COUNTY BOARD OF EQUALIZATION OR ASSESSMENT APPEALS BOARD ON YOUR OWN BEHALF. AN APPEALS BOARD HAS THE AUTHORITY TO RAISE PROPERTY VALUES (BUT IN NO CASE HIGHER THAN THE PROPOSITION 13 PROTECTED VALUE) AS WELL AS TO LOWER PROPERTY VALUES.
ValuviaValuvia
Check

Should I review my property assessment?

Compare the assessed value with available market evidence. The free result is preliminary and does not predict a county decision.

Free preliminary checkNo account required

Free preliminary check

No account, no address needed yet — just your county and assessed value.

$
$

When is a closer review worthwhile?

A review may be useful when credible January 1 evidence indicates the assessed value is above market value. The county decides the result; filing rules, fees, and deadlines vary.

Consider reviewing if:

  • Recent comparable sales support a lower January 1 value
  • The county record contains a material property error
  • Documented condition differences affect market value
  • The applicable county filing period is still open

A filing may be less useful if:

  • The assessed value is already below supported market value
  • The applicable deadline has passed
  • Available evidence is too weak or too remote from the valuation date

A formal appeals board may lower, leave unchanged, or raise a value subject to California law and Proposition 13 limits. Confirm the current county instructions before filing.

Review your property first

Eligible Riverside, Los Angeles, and San Diego County owners may choose the free Prop 8 Informal Request Package or the $45 Formal Appeal Package.

Check My Property

Common questions

What does Valuvia provide?

Valuvia prepares owner-filed property-assessment review documents and supporting evidence. Valuvia is not a county agency, law firm, tax adviser, appraiser, or filing representative.

Which packages are available?

Eligible Riverside, Los Angeles, and San Diego County homeowners may choose the free Prop 8 Informal Request Package (Riverside and Los Angeles informal packets today) or the $45 Formal Appeal Package.

When do I pay Valuvia?

Not before filing. First, download the county form, review, sign, and file it yourself. Upload the county filing receipt; after Valuvia verifies it, pay to unlock the remaining documents.

Does the county charge a filing fee?

Informal assessor review is available directly from the county at no cost. Formal appeals may require a separate county fee. Check the current official county instructions before filing.

Does Valuvia file for me?

No. You review, sign, and file online or by paper mail. Online filing usually gives faster confirmation; mail is simpler but slower and can be delayed or lost.

What filing proof should I upload?

Upload the county receipt or confirmation showing the request or application was filed. A postal receipt alone proves mailing, not county filing.

Is an informal Prop 8 request the same as a formal appeal?

No. The assessor handles an informal request; the county assessment appeals office handles a formal appeal. An informal request generally does not preserve the formal deadline.

Is a reduction guaranteed?

No. The county decides. A formal appeals board may lower, leave unchanged, or raise a value subject to California law and Proposition 13 limits. Estimated savings is the best possible figure from the numbers shown, not a guaranteed result. Valuvia is not responsible for the county’s decision or for tax you still owe.

How do I reach a person?

Call Valuvia Customer Care at (888) 805-7076, email support@valuvia.net, or use Send a support email on this page. Ask Val is AI-assisted and cannot make account, payment, refund, or filing decisions.

Which counties does Valuvia support?

Paid packages are available for eligible residential properties in Riverside, Los Angeles, and San Diego Counties. Informal Prop. 8 packets are currently published for Riverside and Los Angeles. San Diego paid service is the Formal Appeal Package.

Can I correct an error?

Yes. Contact Customer Care promptly with the order number, corrected fact, and supporting record. Do not file or rely on information you know is inaccurate.

How do refunds work?

Formal Appeal ($45): within six months of the Valuvia charge, if the county does not reduce the assessment or the appeal is unsuccessful, you may request a refund of that fee with the county decision letter or other official evidence. Prop. 8 Informal: the package is free, so there is no fee to refund. County fees are never refunded by Valuvia.