Preview with confidence

Current evidence with explicit boundaries.

01

No account or payment

Generate the current-year preview without creating an account or entering a payment method.

02

No notice required

We start with a clearly labeled provisional assessment estimate so you can review current comparison evidence immediately.

03

Missing evidence stays missing

If the model cannot form a supported comparison set, it says so instead of inventing a range or savings estimate.

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What the preview includes

A decision now—and an evidence file for later.

01

A current answer

See whether the 2026 assessment appears above the range supported by comparable homes.

02

The exact homes

Review the specific nearby properties selected for similarity, timing, size, and other recorded facts.

03

A clear assessment

Get a plain-language conclusion, the evidence behind it, and the most important limitations.

04

A report to keep

Save a time-stamped PDF when you file so the original comparison set is ready when a hearing is scheduled.

Why one report is free

Same product experience. Different data year.

Feature2025 report2026 report
Best forLearning or a pending 2025 hearingDeciding whether to appeal now
DataHistorical public rollFresh current-year evidence
Comparison homesIncludedIncluded
Downloadable reportIncludedIncluded
PriceFreeFree preview
Built for a long process

Use it when you decide. Keep it until you are heard.

  1. Now
    Check the 2026 evidence

    Use the report to decide whether the potential difference justifies the City filing fee and your time.

  2. By September 15
    File with the City if you choose

    A regular-roll appeal is your filing, not ours. Confirm the deadline and current rules with San Francisco.

  3. Later
    Open the saved PDF for hearing prep

    Verify sale facts and property differences, then organize the comparison homes you plan to rely on.

Review San Francisco’s official 2026 filing guidance ↗
Try it now

Generate the 2026 report on your own home.

Start with your address. The preview will use a provisional assessment estimate and clearly label it in the report.

Check my 2026 assessment

Appeal Prepper is a self-service evidence product. It does not file or represent an appeal, guarantee a reduction, or provide an appraisal, legal advice, or tax advice.