FinCompute

401k Contribution Calculator

Simulate how your 401(k) retirement balance grows with salary deferrals and employer matching contributions.

Last updated: July 2026

Salary & Deferral Settings

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Growth & Match Assumptions

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* **Employer Match**: The percentage of your contribution the employer matches (e.g., 50% match means they add $0.50 for every $1.00 you contribute).
* **Matching Limit**: The maximum salary percentage the employer will match (e.g., up to 6% of your salary).

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Projected 401k

$784,100

Company Match

$114,100

Pre-tax Tax Savings

$45,600

401k Growth Composition

401k Year-by-Year Schedule

Detailed compound projection listing salary increases, employee deposits, employer matching, and tax savings.

Maximizing Your Workplace 401(k) Plan

A 401(k) is one of the most powerful wealth-building tools available to employees, offering automated investing, tax advantages, and employer matching contributions.

The Power of the Employer Match

An employer match is essentially free compensation. If an employer matches 50% of contributions up to 6% of salary, contributing 6% yields an immediate, guaranteed 50% return on your invested dollars before market growth even occurs.

Compound 401(k) Growth

FV = PV*(1+r)^t + PMT * [((1+r)^t - 1) / r]

Combines your starting balance growth with the future value of recurring monthly contributions and employer matches over your career horizon.

401(k) Optimization Rules

  • Capture the Full Match FirstNever contribute less than the exact threshold required to capture 100% of your company's matching dollars.
  • Inspect Investment OptionsReview the internal expense ratios of funds in your 401(k) menu and prioritize low-cost broad-market index funds.
  • Utilize Auto-EscalationEnable automatic 1% annual contribution increases aligned with annual merit raises to painlessly reach IRS contribution maximums.

Frequently Asked Questions

What is an employer 401(k) match?

An employer match is money your employer contributes to your 401(k) account based on your own contributions (e.g. matching 50% of contributions up to 6% of your salary). It is effectively an instant return on your savings.

What are the 401(k) contribution limits for 2024?

For 2024, the employee contribution limit is $23,000 for those under 50. Individuals aged 50 and older can contribute an additional $7,500 catch-up contribution for a total of $30,500.

What is the difference between Traditional 401(k) and Roth 401(k)?

Traditional 401(k) contributions are pre-tax and reduce your current taxable income, with withdrawals taxed in retirement. Roth 401(k) contributions are post-tax, but all qualified growth and withdrawals are completely tax-free.

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