A 58-year-old engineer in Palo Alto, married filing jointly, earns $750,000 a year, has already stuffed $4 million into 401(k)s and IRAs, and parks another $1.2 million in a brokerage account that holds a single S&P 500 fund. The 401(k) is maxed. The mega backdoor Roth is maxed. The next tax dollar saved has to ... The $40,000 Tax Move That Comes After Your 401(k) Hits Its Limit


