The Tug of War
You've been putting $200 a month into your 401(k) since age 24. Now 31, you have $18,000 saved for retirement, but also $9,500 in credit card debt at 19.8% APR and $4,200 on a personal loan at 11%. Every month feels like a tug-of-war: invest for the future or attack the debt dragging on your present.
Everyone has an opinion. Never stop investing because of compound interest. Debt-free is the only path to wealth. Neither side has run the numbers.
What the Math Shows
Run the numbers through a debt payoff calculator. Minimum payments total $310, $210 on the card, $100 on the loan. At minimums, the credit card takes six years and costs over $5,400 in interest.
Redirect that $200 monthly 401(k) contribution to the card instead and payoff drops from six years to under two. Interest saved: roughly $3,800.
Meanwhile, the 401(k) at an optimistic 8% return would grow that $200/month by about $5,300 over two years. But the card charges 19.8%. The debt costs more than the investments earn.
The Hybrid Approach
Going all-or-nothing isn't necessary. If your company matches 401(k) contributions up to 4%, that match is free money, a guaranteed 100% return. Stopping entirely means leaving $150/month of employer match on the table.
Cut contributions to 4% to capture the full match, freeing $110/month. That plus a tighter grocery budget ($60 saved) goes to the credit card. The calculator shows it paid off in 22 months. Then redirect the full $370 to the personal loan, clearing it in 10 months.
After both debts, roughly 32 months out, boost the 401(k) to 10% with money that had been going to debt.
The Honest Answer
The investing-vs-debt question has no universal answer. It depends on rates, employer match, and risk tolerance. But the math usually favors paying off anything above 10–12% before investing beyond an employer match.
Both sides are right, just at different times. The key is sequencing, not choosing.
Deciding between Roth and traditional 401(k)? PaycheckTools breaks down how each one affects your paycheck.