401k Employer Match Explained: Do Not Leave Free Money on the Table

Published June 2026 · 4 min read

The most common 401k match formula is 50% of your contributions up to 6% of your salary. If you earn USD 80,000 and contribute 6% (USD 4,800), your employer adds USD 2,400 — that is a guaranteed, instant 50% return on your money before any market growth. Not contributing enough to get the full match is literally turning down free money.

How a Match Grows Over 25 Years

USD 80,000 salary, 10% contribution (USD 8,000), 50% match up to 6% (USD 2,400). Total annual addition: USD 10,400. At 7% return over 25 years: USD 658,000. Without the match: USD 505,000. The employer match alone adds USD 153,000 to your retirement — from money you would have left on the table. Use our 401k Calculator to model your own contributions and match.