Your student loans might be the last debt to attack — not the first

I was guilty of this myself. I kept investigating how to pay off my low-interest student loans. I thought they were killing me when I should have been focused on the much higher-interest credit card balances and investments.

Somewhere along the way, "debt-free" became the finish line. Burn the mortgage, screenshot the zero balance, post the confetti. And for some debt, that instinct is exactly right — nobody should be strategic about a 24% credit card. Kill it with fire.

But student loans are a different animal, and treating them like credit card debt is one of the most expensive mistakes a first-gen grad can make. Not because paying debt is bad. Because every dollar has exactly one job, and a dollar sent to a 5% loan cannot also collect your employer match, cannot compound in a Roth IRA, and cannot sit in an emergency fund keeping you off the credit card when the transmission goes.

The finance influencers will tell you debt is slavery and freedom has no price. Your uncle will tell you never to pay a bank a dime more than you must. They are both selling a feeling. We do math here.

So here is the honest version: sometimes attacking your student loans early is exactly right. And sometimes it is a six-figure mistake wearing a virtue costume. This issue is about telling the difference.

Here is the reframe that unlocks everything.

An extra payment on a loan is an investment with a guaranteed return equal to the interest rate. Send an extra $1,000 to a 6% loan, and you have locked in a 6% return, guaranteed, tax considerations aside. That is genuinely good.

But "good" is not the question. The question is: good compared to what?

Compare the guaranteed returns available to you right now:

Now the picture is clear. A dollar prepaying a 5% loan while a 100% match goes uncollected is not discipline. It is lighting money on fire to feel responsible. The match beats the loan. High-interest debt beats the loan. And over a long horizon, even boring index investing has historically beaten the typical federal loan rate — with the honest caveat that the market's return is an average and the loan's rate is a certainty.

The rule of thumb that falls out of this: below roughly 5%, extra payments are usually the weakest use of your dollar. Above roughly 7%, attacking the loan is defensible on math alone. In between is judgment country, and we will get to what belongs in that judgment.

Here is the part almost nobody prices in: federal student loans are the most flexible debt you will ever hold, and every extra dollar you send is a dollar of flexibility you voluntarily surrendered.

Federal loans come with income-driven repayment — if you lose your job or your income drops, your required payment drops with it, potentially to zero. They come with deferment and forbearance options. They are discharged at death and, in many cases, permanent disability, meaning this debt does not haunt your family.

No car loan does that. No mortgage does that. Certainly no credit card does that.

Now think about what that means for the prepayment decision. Money sent to the loan is gone — it lowered a balance that was already flexible. Money sent to your emergency fund instead is still yours, and the loan's own safety features cover you if things go wrong. When you are early in your career, cash in hand beats a slightly smaller balance on the most forgiving debt you own.

Two special cases that make prepayment actively destructive:

If you are pursuing Public Service Loan Forgiveness — government, nonprofit, many hospital and education jobs — every extra dollar you pay is a dollar you paid on a balance that was going to be forgiven. Prepaying while pursuing PSLF is paying a bill twice. Minimum payments only, certified employment, full stop.

If refinancing to a private lender for a lower rate — the rate drop is real, but you just sold the parachute. Income-driven repayment, gone. Federal forbearance, gone. Discharge protections, usually gone. Refinancing federal loans can make sense for high earners with deep emergency funds and total job security. For most people early in the come-up, it is trading insurance you might desperately need for a rate cut you barely notice.

Private loans are a different conversation entirely. No parachute, often higher rates. Private loans above 7 to 8% belong near the top of your attack list, right behind credit cards. The gospel of this issue applies to federal loans specifically.

Now the other side, argued for real — because if I only give you the math, I am doing to you what the influencers do.

The psychological weight is a real cost. Some people carry a loan balance like a stone. It shapes their choices, their sleep, their sense of whether the degree was worth it. If a balance is costing you peace, the return on eliminating it is not measured in percentage points. A suboptimal plan you execute beats an optimal plan that grinds you down. That is not weakness; that is knowing your own operating system.

Debt-to-income matters when you want a mortgage. Lenders count your student loan payment in your DTI ratio. If a purchase is 12 to 24 months out and your DTI is borderline, strategically reducing the required monthly payment can unlock the house. Note the mechanics, though: what usually matters is the monthly payment, not the balance — and prepaying a federal loan does not always lower the required payment.

Behavioral truth: some people will spend the difference. The math assumes the dollar not sent to the loan gets invested. If in real life it gets spent, the loan payment was the better investment because it actually happened. Automation solves this — but only if you set it up.

The point is not that the math side always wins. The point is to choose with eyes open. Pay it off early because you decided the peace is worth the price — not because a guy on the internet screamed that debt is bondage.

Here is where the extra dollar goes, in order, for most people on the come up:

Notice where federal student loans at typical rates sit: dead last among the things worth doing. Not because the debt doesn't matter. Because everything above it matters more, dollar for dollar.

If somebody you love is eating rice and beans to prepay a 4.5% loan while their employer match sits uncollected, forward them this issue. They are being disciplined in the wrong direction, and it is costing them real money.

Happy triage,

P.S. — "Unlearn Rich" goes deeper on why debt feels like shame and what to do about it. Preorder at unlearnrich.com.