DTI Scenario Planner
What if you paid off this debt?
Max home price (excluded debts removed)
$460,532
With $905 in qualifying debts and a 43% back-end DTI cap.
Current DTI (debts only)
9.0%
$905/mo of debt
Max PITI budget
$3,395
to stay under 43% back-end
Max home price
$460,532
$60,000 down
Monthly income
$10,000
$120,000/yr gross
Your debts (3)
Qualifying payment: $75/mo. Reported minimum payment used
Qualifying payment: $380/mo. Standard installment payment
Qualifying payment: $450/mo. Fannie Mae rule: 1% of balance (1.0% × $45,000 = $450) used because actual deferred payment is lower
DTI edge cases
Student loans in deferment/forbearance: Fannie Mae uses 1% of the balance (or a documented fully amortizing payment); Freddie Mac and FHA use 0.5% of the balance (not the actual $0). This hits borrowers fresh out of school harder than any other DTI rule.
Student loans on IBR/IDR: If your documented payment is > $0, that number counts. If it’s a documented $0, Fannie accepts $0; Freddie Mac uses 0.5% of balance. Note: SAVE has ended, and the new Repayment Assistance Plan (RAP, open since July 1, 2026) has a $10/month minimum, so a $0 payment is now possible only on the older IDR plans (such as IBR).
Installment debt with ≤10 payments left: Lender excludes from DTI if the payment doesn’t materially affect your ability to repay the mortgage. Tag this on the debt and it’ll be excluded automatically. Auto leases are the exception: the lease payment always counts, however few months are left, because a lease is usually renewed or replaced.
Co-signed debt: Counts against your DTI unless you can document 12+ months of payments by the other party (cancelled checks, bank statements). Toggle that on the debt to see the effect.
Credit cards: Minimum payment counts (even if you pay in full each month). Pay down balances before applying. Utilization affects both credit score and DTI.