Property tax appeal guides for San Francisco homeowners — deadlines, evidence, and the assessment appeals process.
Danielle Cui · August 8, 2026
Everything a San Francisco homeowner needs to appeal an over-assessed property: the July 2 – September 15 deadline, the $120 filing fee, the evidence that wins, the hearing, and how much you can save.
Danielle Cui · August 8, 2026
September 15 or November 30? California's appeal deadline is not the same in every county. The filing windows for San Francisco, Alameda, Santa Clara, San Mateo, Contra Costa, Marin, Napa, Sonoma, and Solano.
Danielle Cui · August 8, 2026
SF condo values diverged sharply from single-family homes — but assessments don't follow automatically. Why condo owners are the most likely to be over-assessed, and how to pick comps within your own building.
Danielle Cui · August 8, 2026
San Francisco's secured property tax rate is 1.18268325% for FY 2025-26 — the 1% Prop 13 base plus voter-approved bonds. How to calculate your bill, and why the rate is the part you can't appeal.
Danielle Cui · August 8, 2026
SF secured property tax installments are delinquent after December 10 and April 10, with a 10% penalty each. The full calendar, what happens if you fall behind, and why you must keep paying during an appeal.
Danielle Cui · August 8, 2026
A supplemental bill isn't a mistake or a double charge — it's the catch-up between the seller's assessed value and yours. How it's calculated, when it's due, and the 60-day window to appeal it.
Danielle Cui · August 8, 2026
The homeowners' exemption takes $7,000 off your assessed value — about $80 a year. File once and it auto-renews. Its real value is that it's the qualifier for a burden-of-proof advantage in any appeal.
Danielle Cui · August 8, 2026
Where to find your SF assessed value, APN, and the property characteristics the Assessor has on file — and how to audit that record for the factual errors that win appeals outright.
Danielle Cui · August 8, 2026
A TIC building is one parcel with one tax bill, but each fractional interest is reassessed separately when it sells. What that means for your assessed value, your share of the bill, and your right to appeal.
Danielle Cui · January 21, 2026
Comparable sales are the heart of a San Francisco property tax appeal. Here's how to choose comps that the Assessment Appeals Board will respect — by location, type, size, age, condition, views, and floor.
Danielle Cui · January 8, 2026
When to file a San Francisco property tax appeal, the full timeline from assessment notice to hearing, what happens if you miss the window, and how to request a postponement.
Danielle Cui · December 18, 2025
A San Francisco homeowner's first-hand walkthrough of the Assessment Appeals Board hearing — how it works, how to present your comps, what to say (and what backfires), and what happens if you disagree.
Danielle Cui · December 3, 2025
When San Francisco home values fall, property tax bills often don't. Here's how Proposition 13 and Proposition 8 work, why assessments don't auto-adjust downward, and what to do about it.