Loan prep tool
Debt-to-income calculator
Add income and monthly debt payments to get a clean DTI read before the deeper statement work starts.
Start with the free manual tool. If you want the real document view after that, analyze a statement PDF.
Free tool
Calculate front-end and back-end DTI in one pass
The formula is easy. The value here is getting to a quick answer fast. The paid product becomes useful when you want the recurring debt stack extracted from real bank activity instead of typed from memory.
Monthly debt stack
Add the recurring payments a lender will care about, then compare them with gross monthly income.
Gross monthly income before taxes.
Rent or mortgage, plus HOA if applicable.
Workable range
Monthly debt payments total $2,700 against gross income of $7,200.
Housing only.
All recurring monthly debt.
Below 36% is usually comfortable. Around 43% is where conventional underwriting gets tighter. Above 50% is usually hard to defend without strong compensating factors. The paid statement flow helps when you want the debt stack found from real bank activity, not memory.
Natural next step
Stop estimating the debt stack from memory
DTI math is cheap. Finding the real recurring debt obligations in a statement package is the expensive part. Uploading statements is the step that turns this from a rough estimate into something operational.
What it gives you
Fast enough for a first pass
Each tool is intentionally narrow. The job here is a clean estimate, not a fake replacement for a full statement analysis.
Front-end and back-end together
Shows both housing-only DTI and full back-end DTI so the read is immediately more useful.
Clear debt breakdown
Keeps the debt stack explicit instead of hiding it behind a single opaque number.
Good pre-analysis filter
Pairs naturally with statement analysis because the next step is checking what the account activity actually shows.
Best fit
This tool is strongest when you need the answer now and the real file review happens next.
Mortgage shoppers
Useful when you want a fast DTI read before you start sending docs out.
Borrowers with mixed debt
Good for seeing whether car loans, student loans, and cards are already consuming too much room.
Brokers and intake teams
Fast enough for a first-pass triage before the real statement review begins.
People coming from DTI content
Natural companion to your debt-to-income educational content and loan-prep pages.
Deeper context
How lenders usually read the DTI result
The exact threshold depends on the loan program, but the interpretation pattern is fairly consistent across underwriting conversations.
Front-end DTI answers the housing question
This is the narrower read: how much of gross income the housing payment alone consumes. It helps frame whether the payment is aggressive before other debt is considered.
Back-end DTI answers the full-obligation question
Once you include cards, loans, and other recurring debts, the ratio becomes much more realistic. This is usually the number that changes the conversation.
Threshold bands matter more than tiny differences
The useful takeaway is not whether you are 36.8% or 37.1%. It is whether you are clearly comfortable, borderline, or outside the range most lenders will like.
Deeper context
Why the statement still matters after the formula
The equation itself is simple. The operational problem is building the right debt picture from real account activity.
Recurring payments are easy to miss in manual summaries
People remember the obvious loans and often forget smaller repeating obligations, card patterns, or autopays that still affect the real monthly load.
Transfers and debt payments can look similar at a glance
Statement-level review helps separate money moving between accounts from payments that reflect a real recurring obligation.
The document tells you whether the story is clean
Beyond the ratio, lenders care whether the file looks coherent. Visible payment patterns, income consistency, and account behavior all shape how usable the package feels.
Supporting guides
Read the article version if you want more context
The tool gives you the quick read. These posts explain the thresholds, use cases, and document expectations behind the result.
FAQ