Mortgage Pre-Approval Calculator
A pre-approval letter tells sellers you are serious — but how much will the letter actually say? Estimate your approval amount the way an underwriter sees it, before anyone pulls your credit.
Pre-qualification vs pre-approval — know the difference
Pre-qualification is a quick, self-reported estimate — useful for planning, worth little to a seller. Pre-approval means an underwriter has verified your income, assets and credit and committed to a loan amount subject to the property checking out. In competitive markets, offers without pre-approval are often ignored.
This calculator mirrors the underwriter's core math: housing costs capped near 28% of gross income and total debts near 36% (conventional guidelines stretch to about 45–50% back-end ratio for strong files; FHA and VA have their own flexibility). On a $95,000 income with $450 in monthly debts and $60,000 down, expect an approval around $355,000–$360,000 at 6.5%.
What underwriters verify
- Income & employment — two years of tax returns, recent pay stubs, employer verification.
- Credit — 620 minimum for most conventional loans, 580 for FHA (with 3.5% down); the best rates start around 740.
- Assets — bank statements for the down payment, closing costs and reserves.
- Debts — the minimum payments on your credit report set your DTI.
Raise your approval amount before you apply
Paying off a $300-a-month car loan can add roughly $45,000 to your approval. So can documenting a co-borrower's income or increasing the down payment past the 20% PMI threshold. But remember: approval is a ceiling, not a recommendation — the affordability calculator shows the comfortable number, and our pre-approval guide walks through the process, documents and timeline step by step. Then verify the payment on your target home with the payment calculator.
Your next steps
Related calculators
Mortgage Payment Calculator
Your true monthly payment with taxes, insurance & PMI.
Home Affordability Calculator
How much house your income can really carry.
Refinance Calculator
Break-even and lifetime savings, honestly totaled.
Down Payment Calculator
How much down, and when you will get there.
Frequently asked questions
How much will I get pre-approved for?
Does pre-approval hurt my credit score?
How long does pre-approval take and last?
What documents do I need for pre-approval?
Can I get pre-approved with a 620 credit score?
Sources & further reading
- Consumer Financial Protection Bureau — Owning a Home hub
- Federal Housing Finance Agency (FHFA)
- Federal Reserve — consumer resources
Official sources for program rules and consumer rights. Zorvex is not affiliated with these agencies; figures here are estimates for education.
