401(k) Savings for Millennials: See If You're on Track and How To Boost Your Retirement Fund

Peter Gratton

Mon, May 18, 2026 at 4:37 PM EDT 4 min read

Key Takeaways

• The average millennial holds about $83,700 in a 401(k), according to Fidelity.

• Contribution rates are climbing, but many millennials are still making up ground lost to early-career setbacks.

Millennials are closing the retirement-savings gap with older generations, but the headline averages mask how far behind many still are.

Fidelity puts the average millennial 401(k) at about $83,700, and older millennials who've stayed in the same plan for at least five years have an average balance of more than $300,000. Millennials include those born between 1981 and 1996.

Counting the employer match, millennials in Fidelity plans now save about 13.5% of their pay. That's within reach of the 15% rate advisors recommend, but still trailing Gen X (above 15%) and Boomers (above 17%).

Advisor Insight

For most Americans saving for retirement, a 401(k) is a key part of their planning. What you put in, and how long you leave it there, will largely determine when you can stop working someday.

How Your 401(k) Compares to Other Millennials

The oldest millennials are pushing 45; the youngest are not yet 30. Older millennials saving steadily are doing markedly better. Fidelity's data shows millennials who've stayed in the same 401(k) for at least five years have balances well above the $83,700 generation-wide average.

Particularly notable is where those retirement savings contributions are going. More than 70% have all their 401(k) money in a single target-date fund, a higher share than any older generation. These funds automatically shift what's in them as investors advance toward retirement, with more invested in stocks early on, then a switch to bonds and other assets with less risk as they get older.

Fidelity's data lines up with other recent studies. Empower's January 2026 snapshot shows savers in their 30s hold an average of $212,000, but a median of just $79,000. For those in their 40s, the spread is wider: an average of $410,000 against a median balance of $157,000. A small group of high savers is pulling the averages up.

Why Many Millennials Are Playing Catch-Up

Timing worked against many millennials from the start. The oldest millennials reached the job market in the early 2000s, then ran into the Great Recession, when joblessness among young workers climbed to roughly 15%.

Those who kept their jobs didn't escape unscathed as wage growth stayed sluggish for years. That left many with more pressing needs than a retirement decades off.

Millennials also started their careers with significant amounts of student debt, and many spent their early earning years paying that debt down rather than funding a 401(k). According to Experian, millennials had an average student loan balance of $33,000 in 2025.