Tax-exempt corporations, tax-exempt trusts, and domestic private foundations use this form to figure their organization’s estimated tax liability. Current Revision Form 990-W Recent Developments 2017 Fiscal Tax Year Filers Must Use Blended Corporate Tax Rates -- 17-APR-2018 Other Items You May Find Useful All Form 990-W Revisions Electronic Federal Tax Payment System (EFTPS) Other Current Products Related Items About Form 990-PF, Return of Private Foundation or Section 4947(a)(1) Nonexempt Charitable Trust Treated as a Private Foundation About Form 990-T, Exempt Organization Business Income Tax Return (and proxy tax under section 6033(e)) About Schedule I (Form 1041), Alternative Minimum Tax - Estates and Trusts About Form 4626, Alternative Minimum Tax - Corporations
