Answered: 401(k) vs. Roth IRA? Use Both If You Can Published on Sep. 24, 2018 in Answered: 401(k) vs. Roth IRA? Use Both If You CanFull resolution (1068 × 711) ← Previous PHOTO: Beige Renegade If you’re eligible to invest in a 401(k) and an IRA, go for it. Here’s why. No related posts found.