Student-loan debt is one of the most common obstacles to mortgage qualification, and it catches borrowers off guard because the payment counted by underwriters often differs from what you actually pay each month.
How underwriters count student-loan payments
Your debt-to-income ratio divides your total monthly obligations by your gross monthly income. Student loans appear in that calculation, but not always at face value. If your credit report shows an active monthly payment—say $350—that is what the underwriter will use. Simple enough. The confusion starts when your loans are deferred, in forbearance, or on an income-driven repayment plan showing a $0 payment.
The 0.5% and 1% calculation rules
When no payment appears on your credit report, or the payment shown is zero, underwriters apply a percentage of the outstanding balance as a hypothetical monthly obligation. For most conventional loans, that percentage is 0.5% of the total balance. For FHA loans, it is typically 1% of the balance. So if you owe $40,000 in student loans and your credit report shows no monthly payment, a conventional underwriter will count $200 per month ($40,000 × 0.5%), while an FHA underwriter will count $400 ($40,000 × 1%). These figures are illustrative; rates and products are subject to change and this is not a commitment to lend.
These rules exist because agencies want assurance that you can handle the obligation once deferment or forbearance ends. Even borrowers on genuine income-driven plans that result in low or zero payments may face this calculation if the servicer does not report an actual dollar amount to the credit bureaus.
Income-driven repayment documentation
If you are on an income-driven plan and your actual payment is lower than the calculated amount, you can usually provide documentation—a statement from your servicer showing the monthly obligation—and the underwriter will use that figure instead. This is critical: a $50 verified payment is far better for your ratios than a $400 calculated one. Make sure your servicer letter is recent, shows your name, loan details, and the monthly payment clearly.
Deferred and forbearance loans
Loans in deferment or forbearance still count. The fact that you are not making payments today does not remove the debt from your qualification picture. If you are within six months of graduating and your loans have not yet entered repayment, expect the underwriter to apply the calculation rule or request proof of the upcoming payment amount.
The Alliance take
Student-loan treatment varies by loan type, investor, and current agency guidelines, so there is no one-size-fits-all answer. We review your credit report, confirm what your servicer reports, and determine the most favorable calculation allowed under the program you are using. If your loans are holding you back, sometimes the fix is as simple as requesting updated documentation from your servicer. Start an application and we will walk through your specific situation.