FYI: Reaching the maximum limit for 401(k) contributions (which is $19,000 in 2019 and an additional $6,000 for those 50 and older) is not an easy feat, and only a fraction of investors actually accomplish it. Only 13% of participants maxed out their 401(k) in 2017 (when the limit was $18,000), according to a 2018 Vanguard report about its investors. What’s more, these investors had higher incomes, were older and had longer tenure at their employers. Comparatively, 9.1% of workers whose 401(k) plans are managed by Fidelity Investments reached the cap, up slightly from 9% at the end of 2017 and 8.1% at the end of 2013. Boomers were most likely to max out their 401(k) plans, followed by Generation X, and lastly millennials.