The Consolidated Appropriations Act, 2021 (CAA) (P.L. 116-260), which runs 5,593 pages, funds the government for its fiscal year ending Sept. 30, 2021, and makes major tax changes for businesses. The CAA also makes changes in the Paycheck Protection Program and other financial assistance options which have tax implications. The following is a brief roundup of these key changes. Most of the changes are effective after 2020, but some of them affect 2020 income tax returns.