SavePropTax

Free check of whether a California home qualifies for a Proposition 8 decline-in-value property tax reduction. Returns a status (qualifies, fair_assessment, not_enough_data, not_residential, window_closed, county_not_served, already_filed, address_not_found, needs_more_info, busy), the current assessment, our opinion of value from recent comparable sales, and the estimated annual savings. When the property qualifies, the result includes a continueToken for start_filing. Checking is free and can only ever lower a tax bill, never raise it.

{
  "type": "object",
  "properties": {
    "address": {
      "type": "string",
      "description": "Street address including the city, for example \"3746 Norris Canyon Rd, San Ramon\""
    },
    "unit": {
      "type": "string",
      "description": "Unit number for multi-unit buildings, for example \"Unit 12\""
    }
  },
  "required": [
    "address"
  ]
}

Start a county filing for a property that qualified in check_property_tax_savings. Prepares the county's own review form and emails a signing link to the OWNER'S email address. The link is never returned here: the owner personally reviews, signs, and pays a flat $29 before anything is filed. Requires the continueToken from a qualifying check (valid 24 hours).

{
  "type": "object",
  "properties": {
    "continueToken": {
      "type": "string",
      "description": "The continueToken from a qualifying check_property_tax_savings result"
    },
    "ownerName": {
      "type": "string",
      "description": "Owner name or names exactly as they appear on title"
    },
    "ownerPhone": {
      "type": "string",
      "description": "Owner daytime phone with area code"
    },
    "ownerEmail": {
      "type": "string",
      "description": "Owner email; the signing link is delivered there"
    }
  },
  "required": [
    "continueToken",
    "ownerName",
    "ownerPhone",
    "ownerEmail"
  ]
}

Coarse status of a filing by document id: awaiting_signature, awaiting_payment, filed, delivered, or unknown. Returns no personal information, addresses, or amounts.

{
  "type": "object",
  "properties": {
    "docId": {
      "type": "string",
      "description": "The docId returned by start_filing"
    }
  },
  "required": [
    "docId"
  ]
}