Pay Off Student Loans or Wait for Forgiveness? What Waiting Actually Costs

Waiting for forgiveness costs less than paying off only if your balance is still there when the clock runs out. For a borrower with a small balance, it usually is not, because the payments retire the debt first. For a borrower with a large one, waiting can cost tens of thousands of dollars less than paying off, even after the tax on the cancelled amount.

• A small balance usually repays itself first. Income-driven payments clear it before forgiveness arrives.

• A large balance can come out ahead after tax. In the example below, by roughly $31,000 to $57,000.

• Public service forgiveness is shorter and tax-free. It is a different wait from income-driven forgiveness.

• You do not have to decide now. Paying what is required and saving the difference keeps both paths open.

Whether waiting saves money depends mostly on how large your balance is compared with your income.

Both examples use a 6.5% rate, the income-based repayment terms for borrowers who first borrowed on or after July 1, 2014, and an income that stays the same every year.

A $30,000 balance on $60,000 of income. Paying it off on a ten-year schedule takes $341 a month and about $40,900 in total. On income-based repayment the payment is about $300 a month, which is more than the interest the loan accrues, so the balance keeps falling. The loan is paid off in about 12 years, long before the 20-year forgiveness point. For this borrower, waiting for forgiveness means paying the same loan off more slowly, at a cost of about $2,400 more.

A $150,000 balance on $70,000 of income. Paying it off on a ten-year schedule takes $1,703 a month, about 29% of this borrower’s gross income, and about $204,400 in total. On income-based repayment the payment is about $384 a month, less than half the interest the loan accrues. Over 20 years the borrower pays about $92,100, and the balance grows to about $252,900 before it is cancelled.

The tax changes the second example but does not reverse it. Depending on the tax rate that applies, the tax on a $252,900 cancellation could run from roughly $55,600 to $80,900. A cancellation that large is added on top of the year’s other income, so much of it falls into higher brackets, and the upper end of that range is the more realistic one. Added to the payments, waiting costs about $147,800 to $173,000, which is still roughly $31,000 to $57,000 less than paying off.

The assumptions matter. Income rarely stays flat for 20 years, and a rising income raises the payment, shrinks the cancelled balance, and shrinks the tax, which moves the comparison toward paying off. The tax is shown as a range rather than a calculation, because the actual bill depends on the brackets and filing status in the year of cancellation. And the examples ignore the fact that a tax owed 20 years from now is paid in future dollars.

A small balance usually disappears before forgiveness arrives, because an income-driven payment on a modest debt is large enough to pay it off.

In the first example, the $300 payment covered the loan’s monthly interest and cut into the principal every month. The debt amortized on its own. The larger your balance is relative to your income, the more likely your payment falls short of the interest, and the more likely the forgiveness clock runs out while a balance remains.

The Department of Education’s own projections bear this out. About 23% of borrowers who start income-based repayment with less than $25,000 are projected to reach forgiveness, against about 68% of those who start with $100,000 or more. What those numbers mean for paying early is covered in should you pay off student loans early.

A balance cancelled under an income-driven plan has been federally taxable since January 1, 2026, which makes the tax the main cost of a long wait.

The date you became eligible controls. The cancellation is taxed based on when you made the final qualifying payment, not when the paperwork was processed.

The tax is owed under the law in effect in the year of cancellation. For a borrower whose milestone is 20 years away, that is a future cost measured against future law, and that law has changed before: the American Rescue Plan Act excluded cancelled student loans from federal income tax from 2021 through 2025. The useful number to have is an estimate of what the tax could be under current rules.

There is also an insolvency exception. If your liabilities exceed your assets just before the cancellation, you can exclude the cancelled amount up to the amount you were insolvent. The calculation counts most of what you own, including accessible retirement accounts, and whether a traditional pension counts is disputed between the courts and the IRS. We are not tax advisors, and a tax professional is the right person to run it. State tax is separate.

Your repayment plan changes the size of the bill. In the second example the balance nearly doubled because the payment did not cover the interest. On the Repayment Assistance Plan, unpaid interest is waived on every on-time payment, so the balance stays roughly flat and the eventual cancellation, and its tax, is much smaller. The trade is time: that plan runs 30 years instead of 20 or 25. It tends to make the most sense where its payment is not higher than the income-based repayment payment would be. Months on the Repayment Assistance Plan generally do not count back toward income-based repayment. How the two compare is covered in income-based repayment versus the Repayment Assistance Plan.

Public service loan forgiveness cancels the remaining balance after 120 qualifying payments, usually about 10 years, and the cancelled amount is not taxed.

That changes the comparison in the first section in two ways at once. The wait is less than half as long, and there is no tax bill at the end. For a borrower who qualifies, the balance that gets forgiven is simply gone.

Extra payments do not bring it closer. The program counts qualifying monthly payments while you work for a qualifying employer, not dollars paid. Paying more reduces a balance that is going to be cancelled and does not reduce the number of months left. The full rules are in the Public Service Loan Forgiveness guide.

A long wait carries costs that do not show up in the arithmetic, and they are legitimate reasons to decide differently.

The rules have changed repeatedly. Over the last several years, repayment plans have been created, enjoined in court and replaced, and borrowers have watched their payment counts move. Doubting whether a promise made today will hold for 20 years is not irrational, and no calculation answers it.

A balance can shape other decisions for decades. Staying on a forgiveness track can influence where you work and how you plan, and carrying a large balance on paper for 20 years has a weight of its own.

Wanting to be done is a real reason. Some borrowers pay off a loan they could have waited out because they would rather close it. That is a choice about what the money buys.

Leaving public service pauses progress toward forgiveness, while refinancing into a private loan ends it for good.

Leaving public service pauses the clock; it does not reset it. Qualifying payments you have already made stay credited. If you return to a qualifying employer, you pick up where you left off. To actually receive forgiveness you need qualifying employment when you make the 120th payment and when you apply. The questions that usually frame the choice are what your payments would be at the new job, how much more it pays, and whether the move is for money alone or for reasons beyond it.

Refinancing into a private loan ends federal forgiveness permanently. A refinanced loan is no longer a federal loan, so it loses income-driven repayment, public service forgiveness, and every other federal protection with it. What refinancing gives up is covered in how to refinance student loans.

Forbearance pauses progress too. Months in a forbearance do not count toward forgiveness, and paying voluntarily during one does not make them count.

New federal borrowing can end income-based repayment. Taking out a new federal Direct Loan on or after July 1, 2026, including a new consolidation loan, generally ends access to income-based repayment for all of your Direct Loans. It matters for a borrower on income-based repayment who is considering more school.

You can avoid choosing between paying off and waiting by making the payments your plan requires and saving what you would otherwise have paid extra.

If forgiveness arrives, the savings are yours. If you change course because of a new job, a change in the rules, or a decision that you would rather be done, the savings can pay the loan off in one payment.

On a forgiveness track, this costs very little. Saving money instead of prepaying normally costs roughly the difference between the loan’s interest rate and what the savings earn. But a dollar prepaid toward a balance that is going to be cancelled earns close to nothing, so holding it in savings gives up almost nothing and keeps it available. How saving up to pay a loan off in one payment works is covered in which student loans to pay off first. The student loan payoff guide covers the other decisions in the same family.