Home Forums Tax Californian Tax Return Due Date (San Diego Country) This topic has [5] replies, 0 voices, and was last updated 3 years ago by Hi. Now Editing “Californian Tax Return Due Date (San Diego Country)” Name * Password * Email Topic Title (Maximum Length 80) Federal Tax Return과 State Tax Return Due Date가 10월 16일까지라는 게 사실인가요? San Diego County에 살고 있습니다. I agree to the terms of service Update List