
San Luis Obispo County Property Tax Appeal Filing Guide
3 Steps to File Your Protest
Follow this proven process to successfully challenge your San Luis Obispo County property assessment

Gather Your Evidence
Collect comprehensive documentation that proves your property is overassessed compared to similar properties in your area.

Mail Your Petition
Complete your BOE-305-AH petition form, include a $30 check payable to San Luis Obispo County, and mail to the San Luis Obispo County Value Adjustment Board before the November 30, 2025 deadline.

Attend Your Hearing
Present your case professionally to the Assessment Appeals Board at your scheduled hearing date and time (hearings begin in your county in October).
Complete Filing Guide
Follow these detailed steps to successfully file your property tax protest with San Luis Obispo County. Each step includes specific requirements and deadlines you must meet.
Gather Your Evidence
Our Competitive Market Analysis will provide a strong foundation for your appeal, but you can absolutely supplement it for an even stronger case with:
- Professional appraisal if available (must be current within 12 months)
- High-quality photos showing property damage, wear, or condition issues
- Documentation of factors that reduce property value (flood damage, structural problems, etc.)
- Bills for recent repair work done to fix issues that were present on the assessment date
Mail Your Petition
Complete your BOE-305-AH petition form and mail it with supporting documents and payment to the San Luis Obispo County Value Adjustment Board before the November 30, 2025 deadline.
- Download and complete the BOE-305-AH form with accurate property information
- Include a check for $30 payable to "San Luis Obispo County"
- Print and include all supporting evidence (photos, comparable sales, appraisals)
- Use certified mail with return receipt requested for proof of delivery
- Keep copies of all documents for your records
Click to see an example of a completed form. Please note, this example is NOT your county's form; do not use it! You must download and complete the correct form using the "Download County Form" button on the right.
Mail your completed petition to:
Attend Your Hearing
Present your case professionally to the Assessment Appeals Board or special magistrate during the hearing period.
- The county will determine if a hearing is required, sometimes cases can be resolved informally via email.
- You'll receive notice of your hearing date and time by mail or email. Hearings generally will occur via phone or zoom, but can be in person depending on the county.
- Present your evidence clearly and concisely (usually 10-15 minutes)
- Be prepared to answer questions about your property and evidence
- Bring multiple copies of all documentation for the board
- Stay respectful and factual in your presentation. County officials want to hear your case fairly.
Receive Your Decision
The board will share their decision in the weeks after your hearing is completed.
- Decisions arrives by mail or email, typically within a few weeks of the hearing
- If successful, you will receive a reduction! What happens next depends on whether your bill was due before your appeal result or after
- If you have not paid your bill yet, it will reflect a reduction once it arrives
- If your bill was already paid, you will receive a partial refund, plus interest
- If your bill is paid in installments, the subsequent payment(s) will be lowered or waived completely, depending on the amount of your reduction
- If denied, you have the right to appeal to circuit court within 30 days
- Keep all documentation for future reference and potential appeals
- Refunds are typically processed within several days after a favorable decision
Don't Miss Your Chance to Save
With the November 30, 2025 deadline approaching, now is the time to act. Mail your petition todayor get professional help to maximize your chances of success.
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"Estimated savings of $1,200 in Del Mar. Took 15 minutes."Sarah, San Diego
"County lowered my value 13%. Filing was painless."John, Los Angeles