Tax Information

1040 form

The deadline for filing tax returns for the year 2017 is Tuesday April 17, 2018.

Please note that due to flooding, the California Franchise Tax Board at 121 Spear Street is temporarily closed. The closest field office is located at 1515 Clay Street in Oakland, near the 12th Street BART station.

Which Form Do I Use?


  • IRS Publication 17 for preparing 2017 tax returns has information on who should file and which forms to use.

State of California

  • The Franchise Tax Board has information for determining which state tax form to file.

Assistance with Filing Returns

Free Online Filing


State of California

  • The Franchise Tax Board offers two free e-file programs, if you meet certain qualifications: Ready Return and CalFile.

Filing by Snail Mail


  • Mailing addresses for filing federal 1040 returns during 2018 may be found here.

State of California

  • State tax forms for California and tax-related correspondence are sent to Sacramento, but depending on your needs, have various post office box numbers and zip codes. All 540 forms have mailing addresses on them.

revised 1/10/2018

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