U.S Tax Deadlines 2020 - 2021 Startup C-Corp

Oct. 15, 2020

Extension for corporate tax returns is due. (Form 1120)

Nov. 2, 2020

Claim R&D tax credits. (Form 941)

Jan. 31, 2021

1099 for contractors are due. (Form 1099 msc)

Mar. 1, 2021

Delaware franchise taxes returns and payments are due, minimum of $400.

Apr. 15, 2021

Corporate tax returns and payments are due. (Form 1120)