The average American retires with less than $90,000 saved, according to a 2023 Federal Reserve report. The contribution window for this tax year does not care about your good intentions.

Let me be direct about this. Every month you undercontribute to a tax-deferred account is money the IRS keeps that you could have sheltered, grown, and spent in retirement on your terms. Not theirs. This is not a motivational speech. This is arithmetic.

I spent 15 years on Wall Street. The pattern I kept seeing, over and over, was not recklessness. It was delay. Smart, busy people who told themselves they would max out next year. Next year became never. By the time they sat across from me at 58, the math was brutal and the options were thin.

Here are seven specific moves that can change that trajectory, but only if you act before the window closes.

1. Know Your Actual Contribution Limit, Not Last Year’s Number

Most people get this wrong. They assume the IRS limits stay flat and never bother to check. For 2024, the 401(k) contribution limit is $23,000, up from $22,500 in 2023, per the IRS. If you are 50 or older, you can add a $7,500 catch-up contribution, bringing your total to $30,500. For IRAs, the limit is $7,000, with a $1,000 catch-up for those 50 and over. When did you last check your contribution rate against the current ceiling? If your answer is “not recently,” you are almost certainly behind.

2. Close the Gap Between What You Contribute and What You Could

Marcus, a 44-year-old logistics manager in Columbus, thought he was doing everything right. He had been contributing 6% of his $85,000 salary to his 401(k) for years, just enough to capture his employer match. That felt responsible. What he did not realize was that 6% put him at $5,100 per year, leaving $17,900 in available tax-deferred space completely untouched. His marginal tax rate was 22%. By not filling that space, he was handing $3,938 a year to the IRS that he could have sheltered. When a financial advisor laid that out in a single spreadsheet, Marcus bumped his contribution to 15% within two pay cycles. Over the next 20 years, assuming a 7% annual return, that adjustment adds approximately $187,000 to his retirement balance. One conversation. One spreadsheet. One decision.

📊 By the Numbers

  • 401(k) limit (2024): $23,000
  • Catch-up contribution (age 50+): +$7,500
  • IRA limit (2024): $7,000
  • Catch-up (age 50+): +$1,000
  • Americans contributing the maximum to their 401(k): only 14%, per Vanguard’s 2023 How America Saves report
  • Median retirement savings for workers aged 55-64: $134,000, per the 2023 Federal Reserve Survey of Consumer Finances

3. Use a Health Savings Account as a Stealth Retirement Vehicle

This is what they never tell you at the enrollment meeting. A Health Savings Account, or HSA, is the only triple-tax-advantaged account available to Americans. Contributions are pre-tax, growth is tax-free, and withdrawals for qualified medical expenses are tax-free. For 2024, the IRS allows contributions of $4,150 for individuals and $8,300 for families. After age 65, you can withdraw for any reason and pay only ordinary income tax, making it function exactly like a traditional IRA. Do the math. A 45-year-old who maxes out a family HSA for 20 years, invested at 7% growth, accumulates over $340,000 in tax-sheltered funds. Most people treat the HSA like a checking account for copays. That is the wrong frame entirely.

💡 Quick Move If your employer offers an HSA-eligible high-deductible health plan, open the HSA today and invest the balance, do not let it sit in cash. Log in, move funds to a low-cost index fund inside the account, and set up automatic monthly contributions. Takes 15 minutes. Lasts decades.

4. Front-Load Contributions Early in the Year

Waiting until December to scramble toward your contribution limit costs you compounding time. A 2022 analysis by Charles Schwab found that investors who contributed a lump sum at the start of the year outperformed monthly contributors by an average of $14,200 over a 20-year period, assuming identical annual amounts. Front-loading is not always possible on a tight budget. But if you receive a tax refund, a bonus, or any irregular income, routing it directly into your 401(k) or IRA immediately is one of the highest-return decisions you can make. Not because of market timing. Because of calendar math.

5. Do Not Ignore the Backdoor Roth IRA If Your Income Is Too High

If you earn above $161,000 as a single filer or $240,000 as a married couple in 2024, you cannot contribute directly to a Roth IRA. But the backdoor Roth strategy is legal, well-documented, and widely used. You contribute to a non-deductible traditional IRA and then convert it to a Roth. The tax bill on conversion is minimal if your traditional IRA balance is near zero. Full stop. This is a strategy tax attorneys and CPAs use for their own families. It is not exotic. It is just underutilized by people who assume the income limit is the end of the conversation.

6. Audit Your Asset Allocation Inside the Account, Not Just the Balance

How much are you actually leaving behind by holding the wrong mix inside a tax-deferred account? A Vanguard study from 2023 found that investors who held a poorly matched asset allocation underperformed optimized portfolios by an average of 1.5% annually. On a $300,000 balance, that gap compounds to over $75,000 in lost growth over 15 years. The account existing is not enough. What is inside it determines whether the tax deferral actually pays off.

⚠️ Warning Target-date funds feel like a complete solution, but many charge higher expense ratios than simply building your own two-fund portfolio. A fund with a 0.65% expense ratio versus a 0.03% index fund costs you an additional $6,200 on a $100,000 balance over 20 years, assuming identical returns. Check the expense ratio of every fund you hold. Right now. That number quietly compounds against you every single year.

7. Catch Up Aggressively If You Are 50 or Older

The IRS built catch-up contributions specifically because life delays savings, job changes, medical bills, kids. Retirement does not care about your reasons. If you are 50 or older and not using the full catch-up provision, you are declining free tax shelter. The extra $7,500 in a 401(k) at a 24% marginal rate saves you $1,800 in taxes this year. Alone. Stack that across five years and you have sheltered $37,500 in additional contributions while saving $9,000 in taxes. That is real money. Not hypothetical money.

Start Here: Which Move to Make Today

If you are under 50, start with Move 2. Calculate the gap between your current contribution rate and the $23,000 ceiling. Close even 20% of that gap this month.

If you are 50 or older, start with Move 7. Turn on the catch-up contribution in your HR portal before you close this tab.

Your Next 3 Steps

Step 1: Log into your 401(k) portal today and confirm your current annual contribution amount. Compare it to the 2024 IRS limit of $23,000. Write down the gap.

Step 2: If your employer offers an HSA-eligible plan, open an HSA this week and move the balance into a low-cost index fund inside the account.

Step 3: If your income exceeds the Roth IRA threshold, contact a CPA or tax attorney about executing a backdoor Roth conversion before December 31.

Here is the number that matters: every day left in this tax year is a day you can still act. Then the window closes, the contribution year is locked, and the opportunity is permanent history.

The deadline is not a technicality. It is a number on a calendar, and it does not move for anyone.