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/moMinimum monthly payment used

$
$

Qualifying payment: $380/moStandard installment payment

$
$

Qualifying payment: $450/moFannie 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 as the qualifying payment (not the actual $0). Freddie uses 0.5%. This is the single biggest DTI killer for borrowers fresh out of school.

Student loans on IBR/IDR: If your documented payment is > $0, that number counts. If $0, Fannie uses 0.5% of balance.

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.

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 credit score AND DTI.