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DTICheckDTI calculator

Playbook

How to lower your DTI

You can move DTI from three directions: shrink monthly debts, raise documented income, or choose a smaller housing payment. Timing matters — new credit and last-minute job changes can undo the work.

DTICheck is an educational estimate. It is not lender underwriting, a pre-approval, or credit advice. Conventional 28/36 and FHA 31/43 are widely published guideline bands; actual overlays and automated findings differ. Read the full disclaimer.

1. Pay the debts that actually change the ratio

Back-end DTI uses the monthly payment, not the balance, except in a few student-loan rules. Paying off a $220 auto lease that is two payments from the end can move DTI more than chipping $500 off a 30-year student loan. Revolving accounts help when the minimumon the credit report drops, which usually means a real balance cut, not a balance transfer that keeps a similar payment.

  • Finish small installment loans so the payment disappears.
  • Cut credit card balances enough to lower reported minimums.
  • Avoid opening new auto or furniture loans during the shop.

2. Document income a lender can use

A side job that is cash-only will not help DTI. Overtime and bonus often need a two-year history. A raise that started last month may count if it is on a paystub and likely to continue. A co-borrower with clean, documentable income changes the denominator for the whole file — and also adds that person’s debts.

3. Right-size the housing number

Front-end DTI is the payment you are asking the lender to approve. A lower price, a larger down payment, a buydown, or a different property tax jurisdiction can move housing more than another year of extra debt payments. Taxes and insurance are easy to underestimate when you only look at principal and interest.

4. Watch the traps

Extending a car loan to lower the payment can help DTI and cost more interest. Paying off a card with cash you needed for reserves can help the ratio and hurt the file. Quitting a second job to “simplify” before closing can erase income a lender was ready to use. Runthe calculator after each change so you see front-end and back-end together.

A simple order of operations

  1. Enter today’s income, proposed housing, and current minimums.
  2. Note which color band you land in versus conventional 28/36 and FHA 31/43.
  3. Pay or finish the debts with the largest monthly payment you can actually close.
  4. Re-run DTI. If you are still above the band you want, lower the housing target or add documentable income.
  5. Freeze new credit until after closing.

Color bands are explained on good DTI for a mortgage. Definitions live on what is DTI.