
TaxDrop currently serves Texas only. We're not taking San Francisco County appeals yet. Join the waitlist and we'll let you know when we launch in California.
✔ Free county guide - how a San Francisco County appeal works
✔ Join the waitlist - no payment and no filing. We'll just tell you when TaxDrop opens here.
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TaxDrop currently serves Texas only. We're not taking San Francisco County appeals yet. Join the waitlist and we'll let you know when we launch in California.
✔ Free county guide - how a San Francisco County appeal works
✔ Join the waitlist - no payment and no filing. We'll just tell you when TaxDrop opens here.
TaxDrop currently serves Texas only. Join the waitlist and we'll email you when we launch here.

TaxDrop currently serves property owners in Texas only. We aren't filing appeals or selling filing packets in California right now. If you'd like to hear when we launch in San Francisco County, join the waitlist. Joining doesn't sign you up for a service or file anything for you.
In the meantime, here's general information about how a property tax appeal works in San Francisco County. Check the county's official site for current deadlines and fees.
If you just opened your San Francisco County property tax bill and felt that familiar punch to the gut, you’re not alone.
The appeals process exists for a reason, but it’s designed to intimidate regular homeowners. You need comparable sales data, property condition reports, and knowledge of assessment methodology. Most people take one look at the paperwork and give up. That’s exactly what the system counts on – your frustration and lack of time working in their favor.

San Francisco County’s unique market creates perfect conditions for assessment errors. Tech booms and busts create wild valuation swings that assessors struggle to track accurately. Properties near transit lines get blanket increases without considering individual factors. Older homes in gentrifying areas like the Outer Sunset or Visitacion Valley often get assessed based on newer construction nearby, ignoring needed repairs or outdated systems.
The Assessor’s Office also relies heavily on automated valuation models that miss crucial details. Your home might need a new roof, have foundation issues, or lack the upgrades of comparable sales – but the computer doesn’t know that. These oversights add up to real money coming out of your pocket unnecessarily.
TaxDrop currently operates in Texas. See our Texas property tax guide.
Step 1: Review Your Assessment
Receive Assessed Value Notice by July 1 showing property valuation.
Step 2: File Your Appeal
Submit Assessment Appeal Application with supporting evidence between July 2 – September 15.
Step 3: Application Review
Clerk reviews application and schedules hearing (60-90 days after filing).
Step 4: Hearing Preparation
Gather comparable sales data, appraisals, and documentation.
Step 5: Appeals Board Hearing
Present case to Board panel (typically 4-9 months after filing).
Step 6: Decision & Adjustment
Board issues written decision; if successful, assessed value reduced and tax refund issued (30-60 days after hearing).
Filing Deadlines:
Required Documents:
Where to Submit:
San Francisco County Assessment Appeals Board, 1 Dr Carlton B Goodlett Pl, San Francisco, CA 94102
Official resources:
The deadline to file a property tax appeal in San Francisco County is September 15th, with the filing period opening July 2nd each year. This 75-day window could save homeowners thousands annually by challenging overassessed property values. Missing this deadline means waiting until the next tax year to appeal your assessment. TaxDrop is not available in San Francisco yet; join the waitlist to hear when it launches.
Not yet. TaxDrop currently serves Texas only. Join the waitlist on this page and we'll let you know when we launch in California.
Any property owner in San Francisco County can file a property tax appeal, including homeowners, landlords, commercial property owners, and business owners who own real estate. You must own the property as of January 1st of the tax year being appealed. Both residential properties in San Francisco and commercial properties throughout the county are eligible for assessment appeals. Check the Assessment Appeals Board rules to confirm your property type qualifies.
Professional property tax appeal services in San Francisco County achieve 75-85% success rates compared to 40-50% for self-filed appeals, making professional help worthwhile for most homeowners. Professionals understand local assessment practices, have access to comparable sales data, and know how to present evidence effectively. The time investment for DIY appeals often exceeds 20-30 hours of research and preparation. TaxDrop does not offer appeal service in San Francisco yet; join the waitlist to hear when it does.