401k Contribution Calculator — How Much Should You Contribute?

Calculate optimal 401k contributions to maximize employer match. See how different contribution levels affect your retirement savings.

The 2026 401k contribution limit is $23500 ($31000 for those 50+). The most critical first step is contributing enough to capture the full employer match — this is literally free money with an immediate 50-100% return. A typical 50% match on the first 6% of salary means you must contribute at least 6% to get the full match.

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401(k) / Retirement Calculator

Corpus
$1.47M
You Put In
$230,000
Monthly Income (4%)
$4,909

Key Information

ParameterDetails
2026 Employee Limit$23500
Catch-Up (50+)$7500 additional
Typical Employer Match50% of first 6%
Match Value (at $80K salary)$2400/year in free money

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Frequently Asked Questions

How much should I contribute to 401k?

At minimum contribute enough to get the full employer match. For a 50% match on 6%: contribute 6% of salary. On an $80000 salary that is $4800/year and employer adds $2400 free. Beyond the match aim for 15% of income for retirement savings including employer contributions.

Should I max out 401k?

If you can afford it yes. Contributing $23500/year at 8% returns from age 30 to 65 grows to approximately $6.7 million. Even if you cannot max out increasing contributions by 1% each year (from 6% to 15% over 9 years) significantly improves retirement outcomes with minimal lifestyle impact.

Traditional vs Roth 401k?

Traditional: tax deduction now taxed in retirement. Roth: no deduction now tax-free in retirement. Choose Roth if you expect higher tax rates in retirement (younger workers early career). Choose Traditional if you are in peak earning years (35-55) and expect lower retirement income. Many advisors recommend splitting between both.

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Last updated: March 2026