The 2026 401(k) limit is $24,500 — but the real advantage goes to those who start now, not those who max out
JW
Jordan Winters
SECURE 2.0 IRS guidance · Apr 10, 2026
Source: The Digital Ledger Data Terminal
A 40-year-old who contributes $24,500 this year and earns a 10% average annual return would have more than $265,000 from that single contribution by age 65. That number does not include any employer match, additional contributions, or tax savings — just one year of maxing out, compounded over 25 years.
The IRS raised the 2026 401(k) contribution limit to $24,500, up from $23,500 in 2025. Workers aged 50 and older can contribute an additional $8,000 in catch-up contributions, and those aged 60 to 63 can contribute up to $11,250 in catch-up contributions. Traditional 401(k) contributions reduce taxable income in the year they are made, effectively subsidizing part of the contribution through tax deferral.
Only 14% of 401(k) participants maxed out their contributions in 2024, according to a Vanguard report. The average combined savings rate, including employer contributions, was around 12% in 2024. Contributing $24,500 annually requires setting aside approximately $2,042 per month, which is unaffordable for many households facing rent, student loans, childcare, and rising living costs.
A 25-year-old who saves $400 per month — less than $5,000 annually — could accumulate over $2.1 million by age 65 with a 10% average annual return. The math still works at lower contribution levels, provided there is time and consistency. Starting early and staying consistent matters more than hitting the IRS ceiling every year.
Contributing at least enough to capture the full employer match ensures workers do not leave compensation on the table. Increasing contribution rates with each raise prevents lifestyle inflation from absorbing additional income. Eligible workers can shelter up to $35,750 in 2026 through the combination of the standard and enhanced catch-up limits.
