Retirement vs debt
Student Loans at 6.5% or the 401(k) Match First?
You have $500 a month spare, a $30,000 student loan at 6.5%, and an employer who matches 50% of the first 6% you contribute. Both feel urgent. Only one of them is a 50% return.
The short answer
Take the full match first, every time. On a $75,000 salary, contributing 6% ($375 a month) earns $2,250 a year of employer money — a 50% return on those dollars in the year you make them. No loan at 6.5% comes close. Send the match-earning $375 to the 401(k), the remaining $125 to the loan, and revisit once the match is maxed.
What each dollar earns
| Where $375/month goes | What it returns | Certainty |
|---|---|---|
| 401(k), up to the match | 50% immediately, then market returns | The match is contractual |
| Student loan at 6.5% | 6.5% a year, guaranteed | Certain |
| 401(k), above the match | Market returns only | Expected, not guaranteed |
The 50% is not an annualised return you can compare with 6.5% directly — it is a one-time uplift on each contributed dollar. But even amortised across a long holding period it dominates a 6.5% loan by a wide margin.
The sequence, once the match is taken
| Priority | Why |
|---|---|
| 1. Employer match in full | A 50% instant return. Nothing else on this list is close. |
| 2. Any debt above roughly 8% | Guaranteed return higher than a realistic equity expectation. |
| 3. Emergency fund to 3–6 months | Prevents the next shock becoming new high-rate debt. |
| 4. Debt between 5% and 8% | A genuine toss-up. Rate certainty against expected return. |
| 5. Retirement above the match, then debt below 5% | Long horizon, tax advantage. |
A 6.5% student loan sits in band 4 — which is exactly why it loses to the match in band 1 and does not obviously beat retirement contributions afterwards.
What the match is worth over time
| Figure | Amount |
|---|---|
| Salary | $75,000 |
| 6% employee contribution | $4,500/yr ($375/mo) |
| 50% employer match | $2,250/yr ($187.50/mo) |
| Total going in | $6,750/yr ($562.50/mo) |
| Balance after 10 years at an assumed 7% | $97,360 |
| Of which employer money and its growth | roughly one third |
Of that $97,360, about $32,450 is employer money and its growth. Ten years of skipping the match to pay a 6.5% loan faster does not earn that $32,450 somewhere else — it forfeits it.
What this assumes
- A $75,000 salary and a 50%-on-the-first-6% match. Match formulas vary widely — read yours.
- A $30,000 student loan at 6.5%, costing $1,950 a year in interest at that balance.
- A 7% annual return on the 401(k), compounded monthly.
- You are vested, or will be. An unvested match is not yours yet.
- No employer-sponsored student loan match, which some plans now offer and which changes the arithmetic.
Every one of these is an input, not a fact about your situation. Change them in the calculators below and the answer changes with them.
Run the math yourself
These calculators give you the same numbers we used above — with your own inputs.
Bottom line
Find your match formula and contribute exactly enough to capture all of it — no more, until the rest of the sequence is handled. Everything above the match is a genuine trade-off against the loan rate; the match itself is not a trade-off at all. It is the one place in personal finance where a guaranteed 50% is on offer, and the only way to lose it is not to take it.
Disclaimer. This is educational, not personalized financial advice. Numbers depend on your specific tax bracket, state, and goals. Verify with the IRS, SSA, or a CPA before acting. See our Financial Disclaimer.
Email me this result
We will send the numbers this page just showed you, plus a link back to it. No account needed.
Keep exploring
