The 401k Optimization Checklist
- Verify your current contribution is at least equal to the employer match threshold: this is the non-negotiable first step
- Check the match formula: some employers match 50% of contributions up to 6% (contribute 6%), others match 100% of contributions up to 4% (contribute 4%)
- Review your fund selections and identify the expense ratio of each: switch to any fund with a ratio below 0.20%
- Determine your traditional vs. Roth election based on current vs. expected future tax rates
- Check if auto-escalation is available and enabled: automatic annual 1% increases are free performance improvement
- Update beneficiary designations if not done recently
- Confirm your investment allocation matches your timeline and risk tolerance
How Much Employer Match Are You Leaving Behind?
Value of employer match over 30 years at 8% compounding — cost of not capturing it
| Salary | Match Formula | Annual Match | Over 30 Years at 8% | Cost of Not Getting It |
|---|---|---|---|---|
| $55,000 | 50% of 6% ($3,300/yr) | $1,650/yr | $200,500 | $200,500 forfeited |
| $65,000 | 50% of 6% ($3,900/yr) | $1,950/yr | $237,000 | $237,000 forfeited |
| $80,000 | 100% of 4% ($3,200/yr) | $3,200/yr | $389,000 | $389,000 forfeited |
| $100,000 | 100% of 3% ($3,000/yr) | $3,000/yr | $365,000 | $365,000 forfeited |
Approximately 20% of employees eligible for an employer match contribute less than the full match threshold, leaving free money uncaptured. On a $70,000 salary with a 50%-of-6% match, under-contributing costs $2,100 per year in forfeited match. Over 30 years at 8% compounding, this is $255,000 in retirement wealth surrendered. No spending decision available to most Americans is this expensive.
Fund Selection: The Single Most Important 401k Decision After Contributions
Most 401k plans offer 10 to 30 investment options. Simple fund selection approach: find the S&P 500 or total market index fund with the lowest expense ratio in your plan. Expense ratio under 0.20% is good; under 0.10% is excellent. If a target-date fund is available with expense ratio under 0.20%, it provides automatic allocation and rebalancing in one fund. Avoid all actively managed funds with expense ratios above 0.50%.
Auto-Escalation: The Set-and-Forget Contribution Increaser
Many 401k plans offer auto-escalation: automatic 1% annual increases to your contribution rate, typically up to 10% to 15% maximum. Turning this on is one of the single best financial decisions available. It captures the save-more-tomorrow behavioral effect: future income is psychologically easier to commit to than current income. Auto-escalation from 6% to 15% over 9 years requires zero decisions and dramatically improves retirement outcomes.
Value of auto-escalation vs. static contribution vs. delayed increase on $70,000 salary
| Scenario | Starting Rate | After 10 Years | Annual Contribution at Year 10 ($70K salary) | 30-Year Portfolio Difference |
|---|---|---|---|---|
| No auto-escalation | 6% | 6% | $4,200 | Baseline |
| Auto-escalate 1%/yr to 15% | 6% | 15% | $10,500 | +$620,000 at 8% |
| Manual increase to 15% at year 5 | 6% | 15% | $10,500 | +$480,000 at 8% |
Always check your plan's vesting schedule for employer contributions. Some plans have cliff vesting (0% until year 3, then 100%) or graded vesting (20% per year for 5 years). If you are within 1 to 2 years of full vesting, the unvested match is a significant financial consideration in any job change decision. A 3-year cliff vesting plan with $3,000/year match means leaving after 2.5 years costs you $7,500 in unvested contributions.
Calculate Your 401k Growth to Retirement
Enter your balance, annual contribution, and employer match to see your projected retirement wealth.