How Much Extra Should I Pay on Student Loans?

Sizing the Extra Payment Without Starving Other Goals

A common starting point is to calculate the gap between your minimum student loan payment and the amount you can comfortably afford after fixed expenses, savings contributions and discretionary spending. Even a modest extra, an amount equal to a few skipped subscriptions, compounds meaningfully over a multi-year loan because every dollar you prepay stops generating daily interest for the entire remaining term.

At an illustrative 6% rate on a 10-year loan, adding an amount equal to roughly 10% of the minimum payment can shave several months off the schedule and save a noticeable sum in interest. Doubling the minimum payment can cut the timeline nearly in half. The extra-payment calculator lets you test a wide range of amounts and see month-by-month how the payoff date and total cost shift with each increment you try.

When Paying Extra Is Not the Best Move

If you carry other debt at a higher interest rate, such as credit cards, directing extra money there first produces a bigger net return on every dollar. Similarly, if your student loan rate is relatively low and your employer offers an unmatched retirement contribution opportunity, the long-term compounding in a retirement account may outweigh the guaranteed return of prepaying cheap student debt.

There is also a liquidity argument. Locking money into a loan prepayment is irreversible; you cannot withdraw it later if an emergency arises. That is why the emergency-fund baseline matters before you commit to aggressive prepayment. Once those boxes are checked, use the calculator above alongside the pay-extra-vs-refinance comparison to see whether your dollars work harder as prepayments or as part of a structured payoff plan that balances multiple goals at once.

The calculator assumes extra payments are applied to principal immediately. Confirm with your servicer that extra funds reduce principal rather than advancing your due date.