Start with your loan documents, not an estimate

Your actual monthly payment depends on four things: how much you borrowed, the interest rate on each loan, how long you have to repay it, and which repayment plan you chose. The only way to know your real number is to look at the documents from your loan servicer, not a calculator or a guess.

Log into your servicer's website using your Federal Student Aid (FSA) ID. You'll see each loan listed separately with its balance, interest rate, and current repayment plan. Write these down. If you can't find your servicer's website, go to studentaid.gov, sign in, and look for "My Aid" — it will show you which company services each of your loans and provide a direct link.

If you haven't made a payment yet and don't know your servicer, check your email for a welcome letter from the loan servicer (not from the Department of Education). That letter has the servicer's name and website. If you still can't find it, call the Federal Student Aid Information Center at 1-800-4-FED-AID and give them your Social Security number — they can tell you which servicer holds your loans.

Key Takeaways

  • Your monthly payment is shown on your servicer's website under your current repayment plan, and that number is more reliable than any calculator.
  • Federal loans and private loans calculate payments differently, and you need to check each one separately because they may have different servicers.
  • Changing your repayment plan changes your monthly payment when ready, but also changes how much interest you'll pay over time.
  • If you can't afford your current payment, contact your servicer before you miss a payment — income-driven plans and forbearance exist specifically for this situation.

Understand the difference between federal and private loans

Federal loans and private loans calculate payments using different rules. Federal loans have standardized repayment plans set by law. Private loans are calculated by each lender using their own formula.

For federal loans, your payment depends on which repayment plan you're on. The Standard plan divides your total balance by 120 months (10 years). Income-Driven Repayment plans calculate your payment as a percentage of your discretionary income — usually 10 to 20 percent of what you earn above the poverty line. PAYE (Pay As You Earn), REPAYE (Revised Pay As You Earn), IBR (Income-Based Repayment), and ICR (Income-Contingent Repayment) are the four income-driven options, and each one uses a different percentage and different rules for what counts as income.

Private loans don't have income-driven options. Your payment is calculated based on the loan amount, interest rate, and the term you agreed to when you borrowed. Private lenders won't change your payment unless you refinance (take out a new loan to pay off the old one), and refinancing means losing federal protections like income-driven repayment and Public Service Loan Forgiveness.

How to read your loan servicer's payment breakdown

When you log into your servicer's website, you'll see a section labeled "Payment Information," "Current Payment," or "Next Payment Due." This shows your monthly payment amount and the date it's due. Below that, you should see a breakdown showing how much of your payment goes toward interest and how much goes toward principal (the actual loan balance).

Early in repayment, most of your payment goes to interest. As time passes, more goes to principal. This is normal and happens with every loan. If you're on an income-driven plan and your payment is very low, you may pay less than the interest that accrues each month — meaning your balance actually grows even though you're making payments. This is called negative amortization, and it's allowed under federal rules, but it means you'll pay more total interest over time.

Some servicers also show an amortization schedule — a month-by-month breakdown of every payment you'll make, how much goes to interest and principal each time, and what your balance will be. If you don't see this on the main page, look for a link labeled "Loan Details," "Payment Schedule," or "Amortization."

Calculate a payment manually if you need to plan ahead

If you want to estimate what a payment would be under a different plan before you switch, or if you're trying to understand how a future loan will work, you can do the math yourself. For federal Standard Repayment, divide your total loan balance by 120. That's your approximate monthly payment before interest is added.

For a more precise calculation that includes interest, use the federal loan calculator at studentaid.gov. Enter your loan balance, interest rate, and the number of months you want to repay over (120 for Standard, 240 for Extended, or the number of months in whatever term you're considering). The calculator will show you the monthly payment.

For income-driven plans, the calculation is more complex because it depends on your income, family size, and state of residence. Your servicer's website usually has an income-driven calculator, or you can use the one at studentaid.gov. You'll need your most recent tax return or a recent pay stub to estimate your income.

For private loans, contact your lender directly. They can tell you what your payment would be under different terms, or you can ask for a loan statement that shows the original term and calculate backwards: if you borrowed $25,000 at 6% interest over 10 years, your payment is roughly $264 per month. (This is approximate; the exact number depends on how the lender compounds interest.)

What happens when you change repayment plans

Switching repayment plans changes your monthly payment when ready, but it also changes how much you'll pay in total interest. A longer repayment period means a smaller monthly payment but more interest paid overall. A shorter period means a higher monthly payment but less interest.

You can change your federal repayment plan anytime by logging into your servicer's website and selecting a new plan. The change usually takes effect within one to two billing cycles. Your next payment will be calculated under the new plan.

If you switch to an income-driven plan, you'll need to provide income information — usually from your most recent tax return. If you don't provide this, the servicer will estimate your income based on what you reported before, or they may calculate a payment based on the Standard plan. You can update your income information anytime if your situation changes.

What to do if you can't afford your current payment

If your monthly payment is more than you can pay right now, contact your servicer before you miss a payment. Missing a payment damages your credit and can trigger collection actions. Your servicer has options that don't require you to default.

If you have federal loans, you can switch to an income-driven repayment plan, which may lower your payment to as little as $0 per month if your income is very low. You can also request forbearance or deferment, which temporarily pauses or reduces your payments. Forbearance is available to anyone; deferment requires you to meet specific conditions (like being in school or experiencing economic hardship).

If you have private loans, your options are more limited. Some private lenders offer forbearance or temporary payment reduction, but this varies by lender. Call your lender and explain your situation — they may work with you to avoid default. Refinancing is another option, but only if your credit has improved since you borrowed, because refinancing means taking out a new loan and losing any protections your original loan had.

How interest rates affect your payment

Your interest rate is set when you borrow and doesn't change (for federal loans, it's set by Congress; for private loans, it's set by your lender). A higher interest rate means a higher monthly payment and more total interest paid over the life of the loan.

Federal undergraduate loans currently have a fixed interest rate set by Congress each year. Graduate loans and Parent PLUS loans have different rates. Private loan rates vary by lender and by your credit score at the time you borrow.

You cannot change the interest rate on an existing loan. If you want a lower rate on a private loan, you can refinance, but this means explore for a new loan and going through credit approval again. Refinancing a federal loan into a private loan means losing federal protections, so most people don't do this unless they have a significantly better rate available.

Frequently Asked Questions

Why does my servicer show different payment amounts on different pages?

Your servicer may show your "scheduled payment" (what you're supposed to pay under your current plan) and your "minimum payment" (the lowest amount that keeps you in good standing). These are usually the same, but if you're in forbearance or deferment, the minimum may be $0 while your scheduled payment is higher. Check the page labeled "Payment Information" or "Current Plan" for your actual due amount.

Can I pay more than my monthly payment?

Yes. Any amount you pay above your monthly payment goes directly to principal and reduces the total interest you'll pay. There's no penalty for paying extra. However, if you're on an income-driven plan and you make extra payments, your payment amount won't go down — it will stay based on your income. The extra money just reduces your balance faster.

What if I have multiple loans with different servicers?

You'll need to log into each servicer's website separately to see each loan's payment. Your total monthly payment is the sum of all individual payments. If you want to simplify, you can consolidate federal loans into a Direct Consolidation Loan, which combines them into one loan with one servicer and one payment. Consolidation changes your interest rate (it becomes the weighted average of your old rates, rounded up) and may change your repayment timeline.

Does my payment change automatically if my income changes?

Only if you're on an income-driven plan and you recertify your income. You must recertify once per year by providing updated income information to your servicer. If you don't recertify, your payment stays the same. If your income drops significantly before your recertification date, you can recertify early by contacting your servicer.

What's the difference between what I owe and what I'm paying?

Your loan balance is the total amount you borrowed plus any unpaid interest. Your monthly payment is what you pay each month toward that balance. If you're on an income-driven plan with a very low payment, you may pay less each month than the interest that accrues, which means your balance grows even though you're making payments. This is allowed, but it means you'll eventually pay more in total interest.