California’s tax system is one of the most complicated in the country. We provide fast access to forms from 2010–2025, plus guides and checklists to help you file correctly and avoid penalties.
Form 100 (2022) helps corporations report taxable income, tax payments, and franchise tax obligations in California.
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A complete Form 100 (2021) guide for filing California corporation franchise tax returns, including deadlines, rules, penalties, and required schedules.
FILLABLE FORMSCalifornia corporations use Form 100 (2020) to file franchise or income tax. Learn about filing rules, deadlines, and key compliance steps.
FILLABLE FORMSUnderstand Form 100 (2019) for California Corporation Franchise filing: key rules, steps, deadlines, and common issues for the 2019 tax year.
FILLABLE FORMSIRS Form 100 (2018) filing rules for corporations; California franchise tax, deadlines, and key requirements.
FILLABLE FORMSForm 100 (2016) explains California franchise and income taxes for corporations, including due dates, filing rules, penalties, and exemptions.
FILLABLE FORMSForm 100 (2015) helps corporations report franchise or income tax to the California Franchise Tax Board. File it on time to avoid penalties.
FILLABLE FORMSCorporations in California use Form 100 (2012) to file franchise or income tax returns and pay the required taxes to the Franchise Tax Board. IRS Form 100 (2012):
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