San Diego County Assessor/Recorder/County Clerk - Assessor Forms and Documents
The San Diego County Assessor/Recorder/County Clerk - Assessor is the assessor's office identified within San Diego County's combined Assessor/Recorder/County Clerk agency.
Forms listed here cover property-tax exemptions and assessment matters, including homeowner, veterans', religious, welfare, and other exemption claims; ownership changes and base-year-value transfers; and address or property-record updates. Other documents address vessels and aircraft, parcel changes, and property damaged by misfortune or calamity.
San Diego County Assessor/Recorder/County Clerk - Assessor forms
- BUSMF901 · CA-SDCA-R-CC-A · San Diego CountyForm BUSMF901, Agent Authorization Form – San Diego County, CA
The Agent Authorization Form (BUSMF901) is issued by the San Diego County Assessor/Recorder/Clerk's Business Division so a business can name an agent for its Business Property Statement. Fill out the form online on FillingPDF and download or print the completed PDF.
1 page - M-1 · CA-SDCA-R-CC-A · San Diego CountyForm M-1, Parcel Combination Request – San Diego County, CA
Form M-1, the Parcel Combination Request, is the San Diego County Assessor's form for asking to combine parcels. Fill it out online on FillingPDF and download or print the completed PDF.
1 page - M-4 · CA-SDCA-R-CC-A · San Diego CountyForm M-4, Parcel Segregation Request – San Diego County, CA
Form M-4, the Parcel Segregation Request, is the San Diego County Assessor's Office form that asks to segregate listed parcels. Fill out the fillable PDF online on FillingPDF and download or print the completed form.
1 page - MAF750B · CA-SDCA-R-CC-A · San Diego CountyForm MAF750B, Property Damaged by Misfortune or Calamity – San Diego County, CA
Form MAF750B is the questionnaire from the San Diego County Assessor/Recorder/County Clerk for a boat or aircraft damaged by misfortune or calamity, returned with Form MAF750A. Fill it out online on FillingPDF and download or print the PDF.
1 page - MAF904 · CA-SDCA-R-CC-A · San Diego CountyForm MAF904, Change of Address - Vessels & Aircraft – San Diego County, CA
Form MAF904, Change of Address - Vessels & Aircraft, is the San Diego County Assessor form for reporting a new mailing address for tax bills, a sale, loss or permanent removal. Fill it out online on FillingPDF and download or print the PDF.
1 page - MAF309 · CA-SDCA-R-CC-A · San Diego CountyMAF-309 Notification of Sale/Loss/Permanent Removal – San Diego County, CA
MAF-309 is the San Diego County Assessor's affidavit for reporting a boat or aircraft that was sold, donated, lost, stolen or permanently removed from California. Fill out the form online on FillingPDF and download or print the completed PDF.
1 page - MAF800 · CA-SDCA-R-CC-A · San Diego CountyMAF-800 Vessel/Aircraft Owner Information Report – San Diego County, CA
The MAF-800 Vessel/Aircraft Owner Information Report is the San Diego County Assessor's form for boat and aircraft owners to give the office their details. Fill it out online on FillingPDF and download or print the completed PDF.
1 page - MAF316 · CA-SDCA-R-CC-A · San Diego CountyMAF316 Commercial Fishing/Supplemental 4% Questionnaire – San Diego County, CA
MAF316 is the Commercial Fishing/Supplemental 4% Questionnaire from the San Diego County Assessor/Recorder/Clerk, Business Division, Marine & Aviation. Fill out the form online on FillingPDF and download or print the completed PDF.
2 pages - MAM-260-B · CA-SDCA-R-CC-A · San Diego CountyMAM-260-B Historical Aircraft Information – San Diego County, CA
MAM-260-B Historical Aircraft Information is the San Diego County Assessor's notice for owners whose aircraft may qualify for the 2026 Historical Aircraft Exemption. Fill out the form online on FillingPDF and download or print the completed PDF.
1 page - MAM-260-C · CA-SDCA-R-CC-A · San Diego CountyMAM-260-C Certifications of Attendance for Aircraft of Historical Significance – San Diego County, CA
MAM-260-C is the San Diego County Assessor/Recorder/County Clerk form on which event coordinators certify each display of an aircraft of historical significance. Fill it out online and download the PDF.
2 pages - CA-SDCA-R-CC-A · San Diego CountyNew Construction Exclusion from Supplemental Assessment (Builder’s Exclusion) – San Diego County, CA
The New Construction Exclusion from Supplemental Assessment (Builder’s Exclusion) is a claim form for the San Diego County Assessor. Fill out the form online on FillingPDF and download or print the completed PDF.
1 page - IX 02F · CA-SDCA-R-CC-A · San Diego CountyProperty Use Report – San Diego County, CA
The Property Use Report is a San Diego County Assessor form that exemption claimants return with their claim form to list other users of the property as of January 1, 2026. Fill it out online and download the PDF.
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About the San Diego County Assessor/Recorder/County Clerk - Assessor
Property-related forms make up a major theme in the current collection. Exemption documents cover different property and claimant categories, including homeowners, veterans, churches, colleges, cemeteries, religious organizations, public schools, and welfare-exemption claims. Related worksheets and supplemental affidavits address income reporting and housing details. Other assessment forms concern exclusions for specified new construction, such as solar energy, rainwater capture, seismic safety, and accessibility work, as well as base-year-value transfers connected to replacement residences, contaminated property, or public-entity acquisition.
A separate group covers ownership and account updates: preliminary change-of-ownership reporting, ownership statements after an owner's death, and address changes for real property, business personal property, vessels, and aircraft. Vessel and aircraft documents also include owner information, sale or loss notifications, and material concerning historical aircraft. Parcel combination and segregation requests and property-damage forms are additional distinct topics in the collection.
These examples describe forms currently listed with the San Diego County Assessor/Recorder/County Clerk - Assessor on FillingPDF, not necessarily every document issued by the agency. Form titles indicate their subjects but do not establish which document applies to a particular situation. Check the issuing agency's current instructions for eligibility, required supporting information, deadlines, fees, submission methods, and current versions before preparing or filing a form.