Your payment depends on your loan type, repayment plan, and total balance

Student loan payments are not one number. The same $30,000 loan can cost you $300 a month or $600 a month depending on which repayment plan you choose and how long you want to take to pay it back. Federal loans offer multiple plans with different monthly amounts. Private loans calculate payments based on interest rate and term length. The only way to know your actual payment is to run the numbers for your specific situation—and you can do that right now without talking to anyone.

The federal government publishes a loan payment calculator on StudentAid.gov. You enter your loan balance, interest rate, and the repayment plan you're considering, and it tells you the monthly payment. Private lenders have their own calculators on their websites. Both take about two minutes. If you have already started repayment, your loan servicer's website shows your current payment amount and what it will be if you switch plans.

Key Takeaways

  • Federal loans on the Standard plan cost roughly $300 per $30,000 borrowed over 10 years, but income-driven plans can lower that to $150–$200 per month.
  • Private loans calculate payment based on the interest rate you received and the term you chose at the time you borrowed—usually 5 to 20 years.
  • You can change federal repayment plans once per year or whenever your income changes, which changes your monthly payment.
  • The StudentAid.gov calculator and your loan servicer's website both show what your payment will be under each plan option.
  • Interest accrues daily on unsubsidized loans, so a higher monthly payment reduces the total amount you'll pay over the life of the loan.

Federal loan payments under each plan

Federal student loans come with six repayment plan options, and each one produces a different monthly payment. The Standard Repayment Plan is the default: you pay a fixed amount each month for 10 years. For a $30,000 loan at 5% interest, that's roughly $283 per month. You pay the same amount every month, and the loan is gone in a decade.

The five income-driven repayment plans—PAYE, REPAYE, IBR, and ICR—calculate your payment based on your current income and family size, not your loan balance. On PAYE (Pay As You Earn), for example, you pay 10% of your discretionary income. If you earn $35,000 per year and have no dependents, your discretionary income is roughly $23,000, so your payment would be around $192 per month. If you earn $50,000, it jumps to roughly $308 per month. The payment changes every year when you recertify your income.

Income-driven plans also forgive any remaining balance after 20 or 25 years of payments, depending on the plan. This means your monthly payment is lower, but you may owe taxes on the forgiven amount when it happens. The trade-off is real: you pay less per month but potentially more over the life of the loan, and you have a tax bill at the end.

Private loan payments and what affects them

Private student loans calculate payment the same way a car loan or mortgage does: based on the loan amount, interest rate, and the term (how many years you have to pay it back). A $30,000 private loan at 6% interest over 10 years costs roughly $316 per month. The same loan over 15 years costs roughly $237 per month. The same loan at 8% interest over 10 years costs roughly $366 per month.

Your interest rate on a private loan is set when you borrow and does not change. It depends on your credit score, income, and the lender's policies at the time you applied. You cannot switch to a different repayment plan the way you can with federal loans. You can refinance (take out a new loan to pay off the old one), but that requires a new application and a new credit check, and your rate may go up or down depending on your current credit and income.

Most private lenders let you choose your term length when you borrow—5, 10, 15, or 20 years. Choosing a longer term lowers your monthly payment but increases the total interest you pay. Choosing a shorter term raises your monthly payment but saves you money overall.

How to find your payment if you're already repaying

If you have already started making payments, your loan servicer sends you a statement every month or quarter showing your current payment amount. You can also log into your servicer's website and see it there. For federal loans, your servicer is listed on StudentAid.gov under "My Aid" once you log in. For private loans, check your promissory note or the lender's website.

Your current payment is based on the plan you chose when you started repayment. If you want to know what your payment would be under a different plan, use the calculator on StudentAid.gov (for federal loans) or your lender's website (for private loans). You do not have to change plans to see the number—the calculator shows you the hypothetical payment with no commitment.

What happens if you pay more than your monthly payment

Paying extra reduces the principal (the amount you actually borrowed) faster, which means less interest accrues over time and you pay off the loan sooner. If your payment is $300 per month and you pay $400, the extra $100 goes straight to principal. Over the life of a 10-year loan, paying an extra $100 per month can save you thousands in interest and cut years off your repayment timeline.

Federal and private lenders handle extra payments differently. Most federal servicers apply extra payments to principal automatically. Some private lenders require you to request it in writing or specify it in the payment instructions. Check your loan documents or call your servicer to confirm how they handle overpayments.

How interest rate affects your total payment

Interest rate is the single biggest factor in how much you pay over time. A $30,000 loan at 4% interest over 10 years costs $305 per month and totals $36,600. The same loan at 7% interest costs $348 per month and totals $41,760. That extra 3% in interest rate costs you $5,160 over the life of the loan—money that goes to the lender, not toward your education.

Federal loan interest rates are set by Congress and are the same for all borrowers in a given year. For loans issued in 2024, undergraduate loans are at 5.5%, graduate loans at 7.5%, and PLUS loans at 8.5%. These rates change each year. Private loan rates vary by lender and by your credit profile. Shopping around for private loans can save you hundreds or thousands in interest.

Changing your payment plan if you're struggling

If your current payment is too high, federal loans give you options. You can switch to an income-driven plan, which recalculates your payment based on your current income rather than your loan balance. You can also request a deferment or forbearance, which temporarily pauses or reduces your payment while you're in financial hardship. These options exist specifically for situations where your payment is unaffordable.

Private loans do not have income-driven plans or built-in hardship options. If you cannot afford your private loan payment, your options are limited to refinancing (if your credit has improved) or contacting your lender to discuss a temporary payment reduction. Some private lenders offer forbearance, but it is not may provide and may add interest to your balance.

Frequently Asked Questions

Can I see what my payment will be before I take out a loan?

Yes. Use the StudentAid.gov calculator for federal loans or the lender's calculator for private loans. Enter the loan amount you're considering, the interest rate (which the lender will quote you), and the term length. The calculator shows your monthly payment immediately. This is how you compare what different loans will actually cost you each month.

What if my income changes after I start repaying?

On federal income-driven plans, your payment recalculates each year when you recertify your income. If your income drops, your payment drops. If your income rises, your payment rises. On the Standard plan or private loans, your payment stays the same regardless of income changes. You would need to switch plans (federal) or refinance (private) to change your payment.

Does paying off my loan early hurt my credit score?

No. Paying off a loan early does not hurt your credit. It may cause a small temporary dip because you're closing an active account, but the long-term effect is positive. You owe less money, and you pay less interest overall. The credit benefit of having paid off a loan outweighs any temporary dip from closing the account.

What's the difference between my payment and how much interest I'm paying?

Your monthly payment includes both principal (the money you borrowed) and interest (the lender's fee for lending it). Early in repayment, most of your payment goes to interest. As you pay down the principal, more of each payment goes to principal. On a $30,000 loan at 5% over 10 years, your first payment might be $150 in interest and $133 in principal. By year 10, it's $5 in interest and $278 in principal.

Can I lower my payment without switching plans?

On federal loans, switching to an income-driven plan is the main way to lower your payment. On private loans, refinancing to a longer term lowers your payment, but you pay more interest overall. Paying extra when you can afford it does not lower your required payment, but it reduces how much total interest you pay and gets you out of debt faster.