How Student Loans Actually Count Against You on a Mortgage in 2026
“Deferred” doesn’t mean your lender pretends it doesn’t exist.
I’ve had clients with a genuine $0 monthly student loan payment get shocked when their debt-to-income ratio still took a hit. It feels unfair until you understand the logic: lenders have to assume that $0 payment won’t last forever, so most programs build in a placeholder payment. The good news is that placeholder is smaller than most people fear — and which program you use changes the number significantly.
Student loans almost always count toward your debt-to-income ratio on a mortgage, even in deferment or forbearance. If you have a documented payment above $0 — including an income-driven repayment (IDR) amount — most programs use that actual figure. If your payment shows as $0, Fannie Mae typically uses 1% of the balance, while Freddie Mac, FHA, and USDA typically use 0.5% of the balance. VA loans may exclude a loan entirely if it’s deferred for at least 12 months past your closing date.
Not sure how your student loans will be counted?
Let’s run your actual numbers across a few loan programs and see what qualifies best.
Check My Qualifying DTIHow Each Program Treats a $0 or Deferred Payment
This is the single biggest source of confusion I see, because the rules genuinely differ by investor — and a $500 “phantom payment” difference can be the line between qualifying and not.
2026 Student Loan DTI Treatment by Program
| Program | If Payment Shows $0 / Deferred | If Payment Shows Above $0 |
|---|---|---|
| Fannie Mae (Conventional) | 1% of outstanding balance | Actual documented payment, including IDR |
| Freddie Mac (Conventional) | 0.5% of outstanding balance | Actual documented payment, including IDR |
| FHA | 0.5% of outstanding balance | Actual documented payment, including IDR |
| USDA | 0.5% of outstanding balance | Actual documented payment (third-party-paid loans still count) |
| VA | Can be excluded if deferred 12+ months past closing | Actual documented payment |
On an $80,000 student loan balance, that’s the difference between $800/month (Fannie Mae’s 1% rule) and $400/month (the 0.5% rule most other programs use) — a gap that can swing your maximum purchase price by tens of thousands of dollars.
How to Improve Your Qualifying Number Before You Apply
- Enroll in an income-driven repayment plan and get it documented. If your IDR payment is above $0 and properly documented by your servicer, most programs will use that actual (often lower) figure instead of the balance-based placeholder.
- Ask your loan officer which investor’s rulebook they’re using. The same borrower can qualify under Freddie Mac’s 0.5% rule but not Fannie Mae’s 1% rule — and many lenders have access to both.
- Get a servicer letter confirming your exact IDR payment if your credit report shows a different (often outdated or $0) number than what you’re actually paying.
- If a loan is scheduled to be forgiven or paid off within 10 months, some conventional programs will exclude it from your DTI entirely — worth flagging to your lender.
🎓 Student Loan DTI Impact Calculator
See how your student loan payment gets counted under each loan program. This is a planning tool, not a loan quote.
Let’s find the program that treats your student loans best.
I’ll compare your qualifying DTI across investors before we pick a loan program.
Start My Pre-ApprovalFAQ: Student Loans and Mortgage Qualifying
Do deferred student loans count against me on a mortgage application?
Yes, in almost all cases. Even loans in deferment or forbearance with a $0 payment are counted using a placeholder percentage of the balance, since lenders can’t assume the $0 payment will continue indefinitely.
Will my lender use my actual income-driven repayment amount?
Usually, yes, if it’s above $0 and properly documented by your loan servicer — most programs use the actual IDR payment shown on your student loan statement rather than a balance-based estimate.
Why did I qualify with one lender but not another with the same student loans?
Different investors calculate a $0/deferred payment differently — Fannie Mae typically uses 1% of the balance while Freddie Mac, FHA, and USDA typically use 0.5%. A lender with access to multiple investors’ guidelines may be able to qualify you under the more favorable calculation.
Can VA loans exclude my student loans entirely?
In some cases, yes — VA guidelines may allow a student loan to be excluded from DTI if it’s deferred for at least 12 months beyond your mortgage closing date.
What if my student loans are scheduled to be forgiven?
Loans that have already been forgiven aren’t included in DTI calculations under any program. Some conventional programs will also exclude a loan scheduled to be paid off or forgiven within 10 months of closing.