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DTI Scenario Planner

What if you paid off this debt?

$
$
%
yr
% / yr
$/ yr
$/ mo
Back-end DTI cap

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.