2026 401(k) Growth and Contribution Calculator

Project 401(k) growth with 2026 contribution limits, age-based catch-up rules, employer match and investment returns.

Reviewed by the Smart Finance Calculators Editorial TeamLast reviewed:

Contribution limits are year-based. 2026 employee deferral limit $24,500; age 50-59 catch-up +$8,000; enhanced age 60-63 catch-up +$11,250. Projections are estimates, not guaranteed returns.

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Values update automatically. Currency: USD.

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Beginning in 2026, certain higher-paid participants who make catch-up contributions may be required to make those catch-up contributions on a Roth basis. Eligibility depends on prior-year wages from the plan sponsor and the features of your employer's plan. This calculator does not determine that requirement.

Chart data: age 31, Balance 29000; age 32, Balance 38816; age 33, Balance 49508; age 34, Balance 61140; age 35, Balance 73781; age 36, Balance 87503; age 37, Balance 102385; age 38, Balance 118510; age 39, Balance 135967; age 40, Balance 154851; age 41, Balance 175265; age 42, Balance 197316; age 43, Balance 221120; age 44, Balance 246800; age 45, Balance 274489; age 46, Balance 304327; age 47, Balance 336465; age 48, Balance 371062; age 49, Balance 408290; age 50, Balance 448330; age 51, Balance 491379; age 52, Balance 537643; age 53, Balance 587344; age 54, Balance 640717; age 55, Balance 698017; age 56, Balance 759510; age 57, Balance 825484; age 58, Balance 896244; age 59, Balance 972117; age 60, Balance 1053450; age 61, Balance 1140614; age 62, Balance 1234005; age 63, Balance 1334043; age 64, Balance 1441179; age 65, Balance 1555891

AgeEmployeeEmployerBalance
31$5,600.00$2,100.00$29,000.00
32$5,768.00$2,163.00$38,816.00
33$5,941.04$2,227.89$49,507.97
34$6,119.27$2,294.73$61,139.99
35$6,302.85$2,363.57$73,780.50
36$6,491.93$2,434.48$87,502.65
37$6,686.69$2,507.51$102,384.52
38$6,887.29$2,582.74$118,509.54
39$7,093.91$2,660.22$135,966.79
40$7,306.73$2,740.02$154,851.39
41$7,525.93$2,822.22$175,264.88
42$7,751.71$2,906.89$197,315.70

What the 401(k) Growth calculator does

A 401(k) growth calculator projects the future value of an employer-sponsored retirement account, factoring in your employee traditional and Roth contributions, employer matching and profit-sharing, annual raises, fees and investment returns. It applies the correct IRS employee-deferral and catch-up limits for the year and your age.

How the calculation works

For the selected year and your age by year end, the tool applies the employee elective-deferral limit plus the age-based catch-up (standard for ages 50-59 and 64+, enhanced for ages 60-63). Employer match and profit-sharing are added but validated against the total defined-contribution plan limit. Each year the balance grows by your expected return net of fees.

Formula

Each year: Balance = Balance × (1 + return − fees) + employee deferral (capped at the age-based limit) + employer contributions (capped so the combined total stays within the plan limit).

What your results mean

In 2026 a participant under 50 can defer up to $24,500; ages 50-59 up to $32,500; ages 60-63 up to $35,750 (enhanced catch-up); age 64+ back to $32,500. Employer match and profit-sharing count toward the $72,000 total plan limit but not the employee-deferral limit.

Limitations: Contribution limits change yearly and are stored by year. Returns, raises, fees and continued employment are assumptions — projections are estimates, not guaranteed returns.

401(k) contribution limits by year

YearEmployee deferralAge 50-59 catch-upAge 60-63 catch-upTotal plan limit
2026$24,500$8,000$11,250$72,000
2025$23,500$7,500$11,250$70,000
2024$23,000$7,500$7,500$69,000
2023$22,500$7,500$7,500$66,000

2026 Roth catch-up notice

Beginning in 2026, certain higher-paid participants who make catch-up contributions may be required to make those catch-up contributions on a Roth basis. Eligibility depends on prior-year wages from the plan sponsor and the features of your employer's plan.

Sources and methodology

Figures are drawn from official Internal Revenue Service guidance and applied using progressive, year-based data configurations.

Last reviewed and verified: July 21, 2026 · Source: Internal Revenue Service

Tax laws and retirement contribution limits may change. Verify important decisions with current IRS guidance or a qualified tax or financial professional.

Frequently asked questions

For 2026 the standard employee elective-deferral limit is $24,500. Employer contributions are separate and do not count against this employee limit.

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Financial disclaimer: Results are estimates for educational purposes only and are not professional financial, tax, legal or investment advice. Figures may not reflect your exact situation. Consult a qualified professional before making financial decisions.