Finance calculator
United States - Tax year 2026401(k) Contribution Calculator
Estimate 2026 401(k) employee contribution room, employer match, and projected retirement balance.
Formula
401(k) contribution and match estimate
401(k) plan rules vary by employer. This estimate excludes vesting, payroll timing, Roth versus traditional tax treatment, after-tax contributions, and plan-specific limits.
Employee contribution = min(salary x contribution %, 2026 elective limit); employer match = eligible contribution x match %
At 100,000 salary, 10% contribution, and a 50% match on the first 6%, employee contribution is 10,000 and estimated match is 3,000.
Sources and assumptions
US 401(k) contribution source notes
This profile covers a simplified 401(k) contribution and employer match estimate for 2026. It applies the IRS employee elective deferral limit, catch-up limits, and a user-entered match formula.
- Effective year
- Tax year 2026
- Last verified
- 2026-05-28
401(k) plan rules vary by employer. This estimate excludes vesting, payroll timing, Roth versus traditional tax treatment, after-tax contributions, and plan-specific limits.
Official and reference sources
Assumptions
- Employee contributions are limited by the 2026 elective deferral limit plus age-based catch-up when applicable.
- Employer match is estimated as match percentage times employee contributions up to the entered salary cap.
- The projection compounds yearly using the annual return entered by the user.
- The calculator does not reduce taxable income or paycheck amounts for payroll taxes.
Not included
- Plan-specific eligibility, vesting, true-up, Roth versus traditional tax treatment, after-tax contributions, nondiscrimination testing, and hardship or loan rules.
- Exact per-paycheck timing, payroll deductions, fees, market volatility, and employer annual addition limit administration.
- State tax, federal withholding, required minimum distributions, and early withdrawal penalties.
FAQs
Which 401(k) contribution limits are used?+
The calculator uses 2026 IRS employee elective deferral limits and age-based catch-up limits for planning.
Does this guarantee my employer match?+
No. Employer match formulas, vesting, eligibility, and true-up rules depend on your plan documents.
How does the 401(k) Contribution Calculator calculate the result?+
It uses the 401(k) contribution and match estimate: Employee contribution = min(salary x contribution %, 2026 elective limit); employer match = eligible contribution x match %. At 100,000 salary, 10% contribution, and a 50% match on the first 6%, employee contribution is 10,000 and estimated match is 3,000.
What information do I need to use the 401(k) Contribution Calculator?+
Estimate 2026 401(k) employee contribution room, employer match, and projected retirement balance.
How accurate is the 401(k) Contribution Calculator?+
401(k) Contribution Calculator applies the formula and assumptions shown on this page. Results may be rounded for readability, so verify changing rates, thresholds, medical guidance, or legal rules with the cited source or a qualified professional.
What should I check before using the 401(k) Contribution Calculator result?+
Check that the units, dates, rates, and assumptions match your situation. Change one input at a time to understand which values have the largest effect on the result.
Finance guide
How to use the 401(k) Contribution Calculator
Estimate 2026 401(k) employee contribution room, employer match, and projected retirement balance. The page also explains the 401(k) contribution and match estimate and shows a practical example: At 100,000 salary, 10% contribution, and a 50% match on the first 6%, employee contribution is 10,000 and estimated match is 3,000.
- 1
Enter your details
Enter the values for the 401(k) contribution calculator scenario you want to check.
- 2
Check the calculation
Review the result alongside the 401(k) contribution and match estimate: Employee contribution = min(salary x contribution %, 2026 elective limit); employer match = eligible contribution x match %.
- 3
Compare scenarios
Change one or more inputs to see how they affect the 401(k) Contribution Calculator result before you use the estimate.
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