What a 45% back-end ratio actually buys here
Underwriting does not start from a price. It starts from your gross monthly income, subtracts every debt on your credit report, and sees what is left for a housing payment. This tool runs it in that order.
- Method
- Back-end DTI
- Default ceiling
- 45%
- Figures
- Samples
Work backwards, the way underwriting does
Gross income before tax, every monthly debt payment that appears on a credit report, and a debt-to-income ceiling. The price falls out of that.
Indicative purchase price
Up to about$408,869
- Housing budget per month
- $2,860
- Loan amount
- $383,869
- Principal and interest
- $2,426
- Property tax
- $324
Mortgage insurance, association dues and any special assessment are not included and will reduce the price this budget supports.
How to read this
Back-end debt-to-income is the whole test. Take gross monthly income before tax, multiply by the ceiling, and subtract every monthly payment that reports to a credit bureau: car loans, student loans, credit card minimums, personal loans and child support. What is left is what the housing payment can be.
Student loans are the line most often calculated wrongly. Some lenders use 1% of the balance, others use 0.5%, and two desks on our panel will use the documented income-driven repayment amount from your servicer statement. On a large balance that single choice can move your buying power by six figures.
The ceiling itself is not fixed. Automated findings will sometimes approve above 50% with strong reserves and credit, and sometimes cap you well below 45% on a thin file. Treat 45% as a working assumption, not a rule.
What it assumes
- Rates used as defaults are placeholders chosen to make the arithmetic readable, not quotes.
- Property tax is entered as an annual percentage of the purchase price and divided by twelve.
- Mortgage insurance is estimated at a sample 0.55% annual factor whenever the down payment is under 20%.
- Homeowner insurance and association dues are whatever you type in; they vary enormously by property.
- Nothing here accounts for your actual credit tier, occupancy, property type or lender adjustments.
Results are sample figures for illustration only. Automated underwriting can approve above or below these ratios depending on credit, reserves, loan-to-value and program. Not an offer of credit.
Getting approved
Not covered here? Call (505) 555-0135 or send us a note. Se habla español.
The program floors are 580 for FHA and 620 for conventional, but lender overlays often sit higher than the program floor, and pricing improves at 660, 680, 700, 720 and 740. Our credit readiness page shows what moving one tier is typically worth.
Zero on VA and USDA if you are eligible, 3% on conventional for first-time buyers, 3.5% on FHA. Down payment assistance can cover part of it. Closing costs are separate and usually run 2% to 4% of the price (sample range).
Not necessarily. Agency financing works from two years of returns, but a bank statement program qualifies you on 12 or 24 months of deposits instead. It costs more, and for a lot of business owners it is still the right answer.
Typically 90 days, tied to the age of your credit report and income documents. We refresh it for free rather than making you start again.