Once the easy tax returns for 2020 are complete by May 2021, tax practitioners face a whole new, more difficult, challenge: how to apply new tax rules to minimize or eliminate altogether the tax liability of individuals and businesses with complex income tax returns for 2020. The purpose of this program is to discuss and analyze provisions applicable to 2020 income tax returns that help tax practitioners reduce a client’s tax liability. Of particular importance is how the American Rescue Plan Act of 2021 impacts 2020 income tax returns. Practitioners should also be aware of the implications of IRS Notice 2021-20, because it sets forth rules for 2020 relating to the Employee Retention Tax Credit, the PPP loan program, and the interaction of the two provisions.