Your 401(k) is likely the most powerful wealth-building tool available to you — yet most Americans don't know how much they should actually contribute. The short answer: at least enough to get your full employer match, ideally 15% of gross income, and more if you can. Here's how to figure out the right number for your situation.
Step 1: Get the Full Employer Match (The Absolute Minimum)
If your employer matches 401(k) contributions, contributing below the match threshold is literally turning down free money. Common match formulas:
- 50% match up to 6%: You contribute 6%, employer adds 3% (most common)
- 100% match up to 3%: You contribute 3%, employer adds 3%
- 100% match up to 6%: You contribute 6%, employer adds 6% (generous)
- Dollar-for-dollar up to 4%: You contribute 4%, employer adds 4%
On a $75,000 salary with a 50%-match-up-to-6% plan, contributing 6% means:
- Your contribution: $4,500/year ($375/month, $173/paycheck bi-weekly)
- Employer match: $2,250/year
- Total: $6,750/year — including $2,250 in free money
Step 2: Aim for 15% (The Expert Recommendation)
Most financial advisors — including Fidelity, Vanguard, and T. Rowe Price — recommend saving 15% of gross income for retirement (including employer match). Here's what that looks like at different salary levels:
| Gross Salary | 15% Contribution | Per Paycheck (bi-weekly) | Tax Savings (24% bracket) |
|---|---|---|---|
| $50,000 | $7,500/year | $288 | $1,800/year |
| $75,000 | $11,250/year | $433 | $2,700/year |
| $100,000 | $15,000/year | $577 | $3,600/year |
| $125,000 | $18,750/year | $721 | $4,500/year |
| $150,000 | $22,500/year | $865 | $5,400/year |
Notice the tax savings column — because traditional 401(k) contributions are pre-tax, a $288/paycheck contribution only reduces your take-home by about $219. The government is effectively subsidizing your retirement savings.
2026 Contribution Limits
- Under 50: $23,500/year maximum employee contribution
- 50 and older: $31,000/year ($23,500 + $7,500 catch-up)
- Total limit (employee + employer): $70,000/year
Can't Do 15%? Here's How to Get There
If 15% feels impossible right now — that's okay. The key is to start where you can and increase gradually:
- Start at your match percentage (usually 3–6%)
- Increase by 1% every 6 months or with every raise
- Use auto-escalation if your plan offers it — your rate automatically increases each year
- Direct windfalls to your 401(k) — tax refunds, bonuses, and raises
Going from 6% to 15% over 4–5 years is much more sustainable than trying to jump there overnight.
Should I Use Roth 401(k) or Traditional?
Many employers now offer both options. The right choice depends on your current tax bracket:
- Traditional 401(k): Best if you're in the 24%+ tax bracket now and expect to be in a lower bracket in retirement
- Roth 401(k): Best if you're in the 12–22% bracket now — pay taxes at today's lower rate and enjoy tax-free withdrawals later
- Split strategy: Some employers let you split contributions — get tax diversification by contributing to both
Read our detailed comparison in 401(k) vs Roth IRA: Which Is Better?
What If I Have Debt?
If you have high-interest debt (credit cards at 18–25%), the math gets tricky. Here's the priority order:
- Contribute enough for full employer match (guaranteed 50–100% return)
- Pay off high-interest debt aggressively using the Debt Payoff Calculator
- Then increase 401(k) to 15%
The exception: never skip the employer match. Even with 20% credit card debt, a 50–100% instant return from matching beats the interest savings of paying off cards first.
See the Impact of Your Contributions
Small changes in contribution rate create massive differences over time. Use our Retirement Savings Calculator to see how increasing your contribution by just 1–2% can add tens of thousands to your retirement nest egg. Then check your overall financial health with the Financial Health Score.