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Don't Make This 401(k) Mistake in 2026

It's a mistake that could cost you over time.

By Maurie Backman Jan 29, 2026 at 10:36AM EST

Key Points

  • The way you invest your 401(k) could help determine how much money you retire with.
  • If you don't choose investments for your 401(k), your money will probably land in a target date fund.
  • These funds have several drawbacks you should know about.

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