2026 401(k) Contribution Limits
The IRS adjusts 401(k) limits annually for inflation. Here are the key numbers for 2026:
| Limit Type | 2026 Amount | 2025 Amount |
|---|---|---|
| Employee contribution (under 50) | $23,500 | $23,000 |
| Catch-up contribution (50+) | $7,500 | $7,500 |
| Total employee (50+) | $31,000 | $30,500 |
| Total combined (employee + employer) | $70,000 | $69,000 |
| Compensation limit for calculations | $350,000 | $345,000 |
Understanding Employer Matching
Employer matching is the most valuable benefit of a 401(k). The most common matching formulas are:
- Dollar-for-dollar match up to 3-6% — employer matches 100% of your contribution up to a percentage of your salary. Example: $80,000 salary with 5% match = $4,000 free money per year.
- 50 cents on the dollar up to 6% — employer matches half of your contribution. Example: you contribute 6% ($4,800), employer adds 3% ($2,400).
- Tiered matching — 100% match on first 3%, then 50% match on next 2%. Encourages higher contributions.
Always contribute at least enough to get the full employer match. Not doing so is literally leaving free money on the table. Use our salary calculator to estimate your take-home pay after 401(k) contributions.
Roth 401(k) vs Traditional 401(k)
The key difference is when you pay taxes:
| Feature | Traditional 401(k) | Roth 401(k) |
|---|---|---|
| Contributions | Pre-tax (reduces taxable income now) | After-tax (no current tax benefit) |
| Withdrawals in retirement | Taxed as ordinary income | Tax-free (if qualified) |
| Best for | Higher earners, expect lower tax bracket later | Early career, expect higher tax bracket later |
| RMDs required? | Yes, at age 73 | No (after SECURE 2.0 Act) |
Many financial advisors recommend splitting contributions between Roth and traditional for tax diversification. If you are in the 22% or lower tax bracket, the Roth usually wins. Above 32%, traditional is typically better. For a detailed tax impact analysis, check out the LevyIO income tax calculator.
Catch-Up Contributions for Workers 50+
If you are 50 or older in 2026, you can contribute an additional $7,500 beyond the standard $23,500 limit, for a total of $31,000. This is critical for workers who started saving late or want to accelerate retirement savings.
At a 24% tax rate, maxing out catch-up contributions saves $1,800 per year in federal taxes (traditional) or builds $7,500 in tax-free retirement income (Roth). Over 15 years with 7% average returns, catch-up contributions alone can grow to over $190,000.
Tax Benefits of 401(k) Contributions
Traditional 401(k) contributions reduce your taxable income immediately. Here is the tax savings at different salary levels:
- $60,000 salary, 22% bracket: Contributing $23,500 saves $5,170 in federal taxes
- $100,000 salary, 24% bracket: Contributing $23,500 saves $5,640 in federal taxes
- $200,000 salary, 32% bracket: Contributing $23,500 saves $7,520 in federal taxes
Use our bonus calculator to see how 401(k) contributions affect your bonus withholding, or the net pay calculator for your regular paycheck impact.
401(k) Contribution Strategies
- Front-loading — contribute the maximum early in the year to maximize time in the market. Caution: ensure you contribute in enough pay periods to get the full employer match.
- Auto-escalation — increase your contribution rate by 1% each year until you reach the maximum. Most plans offer this feature automatically.
- Mega backdoor Roth — if your plan allows after-tax contributions beyond $23,500 (up to the $70,000 total limit), you can convert them to Roth for additional tax-free growth.
Frequently Asked Questions
What is the 401(k) contribution limit for 2026?
The employee contribution limit for 2026 is $23,500. Workers 50+ can add $7,500 in catch-up contributions for a total of $31,000. The combined employer + employee limit is $70,000.
How much should I contribute to my 401(k)?
At minimum, contribute enough to get the full employer match. Beyond that, aim for 10-15% of gross salary. If you started saving late, target 15-20%.
Is a Roth 401(k) better than a traditional 401(k)?
Roth is better if you expect higher taxes in retirement (early career, lower bracket now). Traditional is better if you expect lower taxes in retirement (high earner, higher bracket now).