The IRS has finalized new regulations affecting retirement accounts and cryptocurrency tax reporting. Beneficiaries of retirement account owners who died after starting to take distributions must continue taking the distributions annually. Additionally, the IRS has raised the age at which workers must start taking funds out of their qualified retirement accounts. The agency has also issued final rules on inheriting IRAs, requiring beneficiaries to withdraw the funds within 10 years and take a minimum amount each year. Furthermore, the IRS has formalized cryptocurrency tax reporting regulations, with KPMG assisting US crypto firms in upholding these standards. These changes come at a time when the IRS faces challenges to its regulatory authority and scrutiny over its ability to craft regulations against tax avoidance maneuvers by multinational corporations. The Loper Bright and Corner Post cases highlight potential retroactive review of decades of tax guidance, posing significant challenges for the IRS.