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Project 401(k) retirement savings with employer match and tax benefits.
FV = Σ (Contribution + Match) × (1+r)^remaining_years
$80K salary, 10% contribution with 5% match at 7% return for 30 years yields ~$1.2M.
Project your 401(k) growth with our detailed calculator, including employer match. See how your contributions can grow into a substantial nest egg for retirement.
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Maximize your retirement with employer matching and compound growth
A 401(k) is an employer-sponsored retirement savings plan that lets employees contribute a portion of their paycheck on a pre-tax basis. The name comes from Section 401(k) of the Internal Revenue Code, added by the Revenue Act of 1978. With a traditional 401(k), contributions reduce your taxable income today, and you pay taxes when you withdraw the funds in retirement.
One of the most powerful features is employer matching: many employers will match a percentage of what you contribute, effectively giving you free money. For example, if your employer matches 50% of contributions up to 6% of salary, contributing 6% earns an extra 3%—an instant 50% return before any investment gains.
Funds in a 401(k) grow tax-deferred, meaning you don't owe taxes on dividends, interest, or capital gains each year. Compound growth over decades makes this tax deferral enormously valuable. A dollar invested at 25 becomes roughly $15 by age 65 at a 7% annual return.
The plan is named for the IRS code section 401(k) of the 1978 Revenue Act, which was originally intended as a supplement to pension plans. Benefits consultant Ted Benna discovered in 1980 that it could be used as a primary retirement vehicle with employee salary deferrals—and the modern 401(k) era was born.
| Feature | Traditional 401(k) | Roth 401(k) | IRA (Traditional) |
|---|---|---|---|
| Tax Treatment | Pre-tax contributions; taxed on withdrawal | After-tax; tax-free withdrawals | Pre-tax (if eligible); taxed on withdrawal |
| 2024 Contribution Limit | $23,000 ($30,500 if 50+) | $23,000 ($30,500 if 50+) | $7,000 ($8,000 if 50+) |
| Employer Match | Yes — most common | Yes — some plans offer | No — individual account |
| Required Min. Distributions | Yes, starting age 73 | Yes, starting age 73 (pre-2024 rules) | Yes, starting age 73 |
| Income Limits | None to contribute | None to contribute | Deductibility phases out at higher incomes |
| Best For | Expect lower tax rate in retirement | Expect higher tax rate in retirement | No employer plan available; supplemental savings |
Congress adds Section 401(k) to the Internal Revenue Code as part of the Revenue Act of 1978, originally intended to govern deferred compensation plans for executives.
Benefits consultant Ted Benna convinces the IRS to clarify that regular employees can defer salary into 401(k) plans pre-tax — creating the modern retirement savings vehicle we know today.
Congress creates the SIMPLE 401(k) plan, designed for employers with 100 or fewer employees, reducing administrative burden while expanding retirement access.
The Economic Growth and Tax Relief Reconciliation Act dramatically increases 401(k) contribution limits and introduces catch-up contributions for workers aged 50 and over.
The Pension Protection Act makes automatic enrollment and auto-escalation features permanent, significantly boosting retirement savings participation rates nationwide.
SECURE 2.0 raises catch-up contribution limits for ages 50+ to $7,500, extends required minimum distribution age to 73, and adds emergency savings provisions.
Median 401(k) balance across Vanguard plans is $87,805. Average balance is $112,572. Only 14% of participants maximized contributions in 2022.
Read Report →Average 401(k) balance reached $118,600 in Q4 2023. The number of 401(k) millionaires hit a record 422,000, up 20% year-over-year.
Read Report →Only 42% of private-sector workers have access to a workplace retirement plan. Participation gaps are largest among part-time, low-income, and minority workers.
Visit EBRI →“I can't afford to contribute to a 401(k) right now”
Even 1% contributions get you employer match — that's an instant 50–100% return on your money before any investment gains.
“I'll start contributing when I earn more”
Every year you delay costs thousands in compound growth. Time in market beats timing the market — the best time to start is now.
“401(k) money is locked away until retirement”
Hardship withdrawals and 72(t) substantially equal periodic distributions are available; plan loans are allowed up to 50% of your vested balance (max $50,000).
“The stock market is too risky for retirement savings”
With 20–40 year horizons, short-term volatility smooths out. The S&P 500 has never produced a negative return over any rolling 20-year period in history.
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