Corporations use Form 1120-W to: Estimate their tax liability. Figure the amount of their estimated tax payments. Current Revision Form 1120-W PDF Instructions for Form 1120-W (Print Version PDF) Recent Developments Taxpayer Relief for Certain Tax-Related Deadlines Due To Coronavirus Pandemic -- 14-APR-2020 Tax Reform Guidance for 1120 filers -- 09-APR-2018 Other Items You May Find Useful All Form 1120-W Revisions About Publication 542, Corporations Publication 966, Electronic Federal Tax Payment System (EFTPS) PDF Other Current Products Related Items About Form 1120, U.S. Corporation Income Tax Return About Form 1120-C, U.S. Income Tax Return for Cooperative Associations About Form 1120-F, U.S. Income Tax Return of a Foreign Corporation About Form 1120-FSC, U.S. Income Tax Return of a Foreign Sales Corporation About Form 1120-H, U.S. Income Tax Return for Homeowners Associations About Form 1120-L, U.S. Life Insurance Company Income Tax Return About Form 1120-ND, Return for Nuclear Decommissioning Funds and Certain Related Persons
