The Biden administration finalized a new rule to ensure financial advisors, brokers, and insurance agents act as fiduciaries and put client interests ahead of their own. Under current rules, advisers can recommend higher-commission investments that may not be best for clients. It takes effect September 23rd and is estimated to impact around 5 million savers and boost retirement accounts by up to 20% over a lifetime. Critics warn it could make professional retirement assistance more expensive and difficult to access. Supporters say it protects investors from conflicts of interest and improper investment recommendations.