Should I Max Out My 401k or Pay Off Debt? The Math
Two good financial goals compete for limited money. Here's how to decide which comes first.
Key Takeaways
- 1Always get employer match first—it's a 50-100% instant return
- 2High-interest debt (15%+) usually beats additional 401k contributions
- 3Low-interest debt (under 7%) may lose to tax-advantaged investing
- 4The "emotional" weight of debt matters too—peace of mind has value
- 5Middle ground: Match + debt payoff + additional 401k
- 6Your tax bracket affects the math significantly
The Decision Framework
The right answer depends on your specific numbers:
| Debt Interest Rate | Recommendation |
|---|---|
| 20%+ (credit cards) | Pay debt after 401k match |
| 15-20% (high CC, some loans) | Pay debt after 401k match |
| 10-15% (personal loans) | Split between debt and 401k |
| 7-10% (student loans) | Consider tax implications |
| Under 7% (mortgage, federal student) | 401k may win mathematically |
Rule #1: Always Get the Employer Match
This is non-negotiable, regardless of debt:
- Employer match is free money—typically 50-100% instant return
- Even with 25% interest debt, 100% return beats it
- Example: 3% match on $50k salary = $1,500 free money
- Not getting match = guaranteed loss
- Contribute at least enough to get full match
- This comes BEFORE aggressive debt payoff
High-Interest Debt (15%+): Pay It Down
Credit card debt and similar high-interest loans should be prioritized:
- Credit cards at 20%+ are guaranteed negative returns
- Even with 401k tax deduction, 20%+ debt wins mathematically
- The psychological burden of high-interest debt is real
- After getting 401k match, attack this debt aggressively
- Consider balance transfer to 0% APR while paying down
- Don't neglect 401k entirely—you need the match
| Scenario | 401k Return* | Debt "Return" |
|---|---|---|
| Max 401k, pay minimum on debt | 7% + 24% tax savings | -20% on remaining debt |
| Match only, extra to debt | 7% + 24% tax savings | +20% saved on interest |
| Net winner | Match only + debt payoff |
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Low-Interest Debt (Under 7%): More Nuanced
Mortgage and federal student loans deserve different treatment:
- Mortgage at 4-5%: 401k likely wins after tax benefits
- Federal student loans at 5-7%: Close call, consider IBR
- Auto loan at 4%: 401k probably wins
- Tax deduction on 401k effectively lowers the "hurdle rate"
- In 24% bracket: 7% pre-tax return = 5.3% after-tax equivalent
- Psychological factor: Some people need the peace of debt freedom
The Optimal Order of Operations
For most people, this order makes sense:
- 1. Emergency fund (1 month expenses minimum)
- 2. 401k up to employer match
- 3. High-interest debt (15%+)
- 4. Increase emergency fund (3-6 months)
- 5. Max out Roth IRA ($7,000)
- 6. Moderate debt (7-15%)
- 7. Max out 401k ($23,500)
- 8. Low-interest debt (under 7%)
- 9. Taxable brokerage / Gold IRA
Don't Sacrifice the Match
No matter how much debt you have, give up the employer match is almost never the right answer. A 50-100% instant return beats any debt interest rate. Get the match first, then attack debt with everything else.
After Debt: Diversify Your Growth
Once high-interest debt is gone and you're maximizing tax-advantaged accounts, consider Gold IRA:
- Gold provides diversification beyond stocks
- Protection against market crashes
- Hedge against inflation that erodes debt payoff gains
- Tangible asset for true portfolio balance
- Can roll over portion of 401k when leaving employer
Frequently Asked Questions
1What if I have no employer match?
Then the decision is simpler: pay off high-interest debt before maxing 401k. The 401k still has tax benefits, but without the match, a guaranteed 20% return (debt payoff) beats a potential 7% return.
2Should I pause 401k to pay off my car loan at 5%?
No, if you're getting a match. The match return far exceeds 5%. If no match, it's a close call—401k tax benefits might still win, especially in higher tax brackets.
3What about using 401k loan to pay off debt?
Generally not recommended. You're trading unsecured debt for debt tied to your retirement. If you leave your job, the loan comes due immediately. Pay debt with income, not retirement borrowing.
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