Should I pay off debt before investing?

It depends on the interest rate. Always pay off high-interest debt (credit cards at 15-25%) before investing. For moderate-rate debt (5-8%), get your employer 401k match first, then aggressively pay debt. For low-rate debt (under 5%), investing typically builds more wealth than accelerating payoff. The mathematical threshold is where your debt interest rate exceeds your expected investment return.

Should I invest while paying off student loans?

For federal student loans at 4-5%, investing simultaneously is usually smart — especially in a 401k with employer match (that's a guaranteed 50-100% return). For private student loans at 7-10%+, focus on paying those off first after getting your employer match. Consider income-driven repayment plans for federal loans to free up cash for investing.

Should I pay off my car loan early or invest?

If your auto loan rate is under 5%, the math favors investing. Above 7%, pay it off. At 5-7%, it's a toss-up that depends on your risk tolerance. One important factor: cars depreciate rapidly, so you can end up underwater (owing more than it's worth). For peace of mind, some people prefer paying off car loans early regardless of the math.

Should I empty my savings to pay off credit card debt?

Keep a minimum emergency fund ($1,000-2,000), then throw everything at credit card debt. Credit card interest at 20-25% is a guaranteed loss that no investment can reliably beat. This is the one case where nearly every financial advisor agrees: pay off credit cards before doing anything else.

Should I use my 401k to pay off debt?

Almost never. Early 401k withdrawals trigger income tax plus a 10% penalty (under age 59.5). On a $50,000 withdrawal, you might lose $15,000-20,000 to taxes and penalties. Even for high-interest debt, the 401k penalty makes this a bad deal in most cases. The exception might be if you're facing foreclosure or bankruptcy.

Myth Busting

Should I Pay Off Debt or Invest?

The mathematical answer is simple. The psychological answer is harder. Here's the framework I wish someone had given me 15 years ago.

The Interest Rate Framework

This is the entire decision tree. Memorize it.

15%+

Pay off IMMEDIATELY

No investment reliably beats 15-25% interest. This is an emergency.

8-15%

Pay off aggressively

Pay off before investing beyond your employer 401k match.

5-8%

The gray zone

Consider splitting: get employer match, then extra to debt, then more investing.

3-5%

Lean toward investing

Historical stock returns exceed this range. Invest, especially in tax-advantaged accounts.

0-3%

Invest (minimum payments on debt)

Inflation may be eroding the real value of this debt. Invest everything extra.

* Always get your employer 401k match first (that's a guaranteed 50-100% return). Then apply this framework.

Your Scenario

Total Debt

Debt Interest Rate

Monthly Extra Payment

Amount you can put toward debt OR investing

Expected Investment Return

S&P 500 avg ~7% real

Pay off debt first, then invest wins by

$3,856

Pay Off First

Net wealth: $388K

Debt-free in 6 years

Invest + Minimums

Net wealth: $384K

Both debt and investments growing

Comparison after 30 years. At 8% debt vs 7% returns, paying off debt wins because your guaranteed 'return' from eliminating interest exceeds expected investment returns.

Debt Priority Guide

Credit Card

~22% typical

Pay off first. Always. No debate.

Personal Loan

~12% typical

Pay off before investing in most cases.

Student Loans (Private)

~8% typical

Borderline. Consider refinancing + aggressive payoff.

Auto Loan

~6% typical

Depends on rate. Under 5%? Invest. Over 7%? Pay off.

Student Loans (Federal)

~5% typical

Consider income-driven repayment + invest the difference.

Mortgage

~6.5% typical

Usually invest (see our mortgage payoff page). Rate dependent.

⚖️

Glen's Take

The math here is straightforward: if your debt costs more than your investments earn, pay off the debt. If your investments earn more, invest. Done. Next question.

But here's what the math doesn't capture: debt is certain, investment returns are not. Paying off an 8% loan is a guaranteed 8% return. Investing for a 7% return is a hope, an average, a long-run expectation that includes years where you lose 30%. Those years hit different when you also have $25,000 in debt.

My pragmatic approach: (1) get your employer 401k match — it's free money, (2) pay off anything over 8%, (3) build a small emergency fund, (4) invest everything else in a low-cost index fund, (5) make minimum payments on low-rate debt.

And for the love of everything: stop using credit cards if you carry a balance. No rewards card is worth 22% APR.

— Glen Bradford, who has very strong opinions about credit card debt

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