San Diego tax calculators
Buyers, owners and sellers in San Diego County pick a calculator by the type of bill.
San Diego property tax calculator
Owners and buyers see the yearly bill, both installments and a monthly set-aside, using the San Diego County average rate or the rate on the bill.
Supplemental property tax calculator
New San Diego County owners estimate the separate bill after closing, including the second bill after a January to May sale.
San Diego sales tax calculator
Sellers and shoppers add tax to a price, or take it out of a receipt, at the rate for any of the county's 18 cities or unincorporated areas.
Tax rates and official sources
- Property tax. Owners start from the County Auditor's 2025-26 average of 1.16729% and compare cities under San Diego property tax rate.
- Sales tax. Sellers pick from California Department of Tax and Fee Administration (CDTFA) rates operative October 1, 2026, for all 18 cities and the areas outside any city.
- Supplemental tax. The State Board of Equalization publishes the share of the year billed for each month.