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401(k) Calculator

Match, IRS Limits, Catch-Up & Retirement Income

Inputs

Profile & Pay

YEARS
YEARS
$
$
%
%

Contributions & Match

%
% / yr
%
%
%
2026 limit preview

This year: $11,400 employee deferral vs $24,500 limit. Remaining room: $13,100.

Growth & Income Assumptions

%
%

IRS Limits & Plan Caps

$
$
$
$
$

Results

Projected 401(k) Balance

$3,238,139

30 years · age 65 · real value: $1,543,759

Monthly Retirement Income

$10,794

Annual estimate: $129,526

Income Replacement

57.9%

Final salary: $223,874

Current Year Limit

$24,500

Max-out monthly: $2,042

Current Match

$2,850

Vested match total: $135,590

Balance Timeline

Balance Timeline: Nominal: $3.2M, Inflation Adjusted: $1.5M$0$810k$1.6M$2.4M$3.2M354147535965
  • Nominal
  • Inflation Adjusted

Balance Sources

$85k
$804k
$136k
$2.21M
Start
Employee
Employer
Earnings

Contribution Plan

Current Year Employee Deferral
$11,400
Current Year Employer Match
$2,850
Remaining Employee Limit Room
$13,100
Effective Current Contribution
12.0%
Monthly Amount to Max Out
$2,042
Years Capped by Limit
21
Catch-Up Years Used
10
Super Catch-Up Years Used
4

Source Totals

Starting Balance
$85,000
Employee Contributions
+$803,818
Vested Employer Match
+$135,590
Unvested Match Excluded
$0
Investment Earnings
+$2,213,732
Final Balance
$3,238,139
Inflation-Adjusted Balance
$1,543,759
Annual Income Estimate
$129,526
Retirement planning

Model the 401(k) levers that actually change the outcome

A 401(k) projection is strongest when it separates employee deferrals, employer match, IRS caps, catch-up rules, inflation, and compounding. The IRS lists two separate contribution limits: employee elective deferrals and the overall annual additions limit in its 401(k) contribution guide.

"The match is the obvious win, but the hidden lever is increasing your own contribution rate before salary growth and compounding do the heavy lifting."

Start with the cap

For 2026, the IRS announced a $24,500 employee limit, $8,000 age-50 catch-up, and $11,250 enhanced catch-up for ages 60-63. Adjust the fields if your plan or tax year differs.

Capture the match

The employer match can be modeled as a match percentage up to a salary percentage, with vesting applied before it reaches the final balance.

Compare real dollars

Use the inflation-adjusted line to sanity-check purchasing power. For a second opinion on compounding mechanics, compare with Investor.gov's compound interest calculator.

Planning model, not tax advice

IRS limits, catch-up rules, Roth catch-up rules, employer vesting, plan eligibility, and payroll timing can vary. Confirm final contribution decisions with your plan administrator or tax professional.

Frequently Asked Questions

  • It projects salary, employee deferrals, employer match, monthly compounding, inflation, and a retirement-income estimate. The contribution caps use the IRS 2026 limits described in IRS retirement plan limits.
  • The default employee elective deferral limit is $24,500. The age 50+ catch-up is $8,000, and the age 60-63 enhanced catch-up is $11,250, per the IRS 2026 announcement.
  • Employer match does not reduce the employee elective deferral limit. It does count toward the overall annual additions limit, while catch-up contributions are treated separately.
  • Nominal dollars show account value, but inflation-adjusted dollars estimate future purchasing power. Use the inflation field to compare both versions.
  • No. The withdrawal-rate estimate is a planning shortcut, not advice. Actual sustainable income depends on market returns, taxes, fees, plan rules, and retirement timing.