We are a dual-income couple in our mid-50s with over $2 million in our 401(k)s. Should we “sacrifice” the pre-tax benefit and switch to Roth contributions at work? -Wendy Like most tax-related questions, the answer is “it depends.” Based on your situation, switching contributions to a Roth 401(k) could make sense for a few key reasons, including tax diversity and tax-free growth. However, there may be additional factors that make sticking with a traditional 401(k) and opening a Roth IRA on the side more de ...