Gather all of your tax records. Since most tax documents are not mailed anymore, please make sure to contact your employer/brokerage/government on how to obtain the information necessary to file your 2020 tax return.
Most income is taxable so taxpayers should gather the necessary income documents including, but not limited to:
W-2 for wage income
1099 from banks/brokerage
1099-NEC (previously form 1099 MISC) for contracting work