401(k) deferral
$19,500
$19,500 401(k) · $6,000 IRA · $6,500 age-50+ catch-up.
By Sammy S. · Founder · AuthorUpdated for 2021
401(k) deferral
$19,500
50+ catch-up
$6,500
IRA limit
$6,000
§415(c) combined
$58,000
Employee deferral and IRA limits unchanged; §415(c) rose to $58,000.
Versus 2020: 401(k) deferral $19,500 → $19,500; IRA $6,000 → $6,000. Compare 2020 vs 2021
Education
Elective deferrals could total up to $19,500 ($26,000 at age 50+). Employer match sat on top of that until the combined §415(c) cap of $58,000.
You could still contribute up to $6,000 ($7,000 at 50+) across Traditional and Roth IRAs combined—separate from the 401(k) deferral limit—subject to earned income and phaseout rules for that year.
Plans generally could not count compensation above $290,000 when computing contributions under §401(a)(17). That matters for highly paid employees and owner plans even when the elective-deferral limit is the headline number.
SIMPLE elective room was $13,500 (+$3,000 at 50+). If your employer offered a SIMPLE instead of a regular 401(k), use those lower caps—not the §402(g) figure above.
These 2021 figures are historical IRS reference amounts. Live calculators use current limits.