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IMPORTANT DEADLINE: Individuals and Corporations
INDIVIDUALS: Make a payment of your 2021 estimated tax if you’re not paying your income tax for the year through withholding (or won’t pay in enough tax that way). Use Form 1040-ES. This is the second installment date for estimated tax in 2020. For more information, see Pub. 505.
CORPORATIONS: For calendar year corporations, deposit the second installment of estimated income tax for 2021. A worksheet, Form 1120-W, is available to help you estimate your tax for the year.