How to Get Pre-Approved for a Mortgage: A Step-by-Step Guide

A mortgage pre-approval letter is your proof of financing — it tells sellers and agents that a lender has reviewed your financials and is willing to lend you a specific amount. In competitive markets, offers without pre-approval are often dismissed. The pre-approval process takes 1–3 days if you have your documents ready. Here's exactly what to expect.

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Key Facts at a Glance
Pre-approval vs pre-qual
Pre-approval: verified docs; pre-qual: self-reported
How long it takes
1–3 business days with documents ready
Validity period
60–90 days (varies by lender)
Credit impact
5–10 point drop (temporary)
Documents needed
~8–12 items (see below)

Frequently Asked Questions

What's the difference between pre-qualification and pre-approval?
Pre-qualification is an informal estimate based on self-reported information — no documents, no credit pull. It takes minutes online but carries no weight with sellers. Pre-approval involves a hard credit pull, full income verification, and document review. It's a real credit decision. Always get pre-approval before making offers in competitive markets.
Gather these before applying: 2 years of W-2s and tax returns, 30 days of pay stubs, 2–3 months of bank statements, photo ID, Social Security number, employer information, landlord contact (if renting), and documentation of any other assets or income. Self-employed borrowers need 2 years of business returns and a YTD profit & loss statement.
No — pre-approval is a good faith indication, not a final commitment. Full approval comes after the property is identified, an appraisal is completed, title search is done, and the underwriter reviews the complete file. Approval can be affected by changes to your financial situation between pre-approval and closing.
Get pre-approved with at least 2–3 lenders. Compare the Loan Estimate forms (standardized) line by line — focus on total closing costs (Section A) and the APR, not just the rate. Multiple mortgage inquiries within 14–45 days count as a single inquiry for credit scoring purposes, so shopping around has minimal credit impact.
Don't: open new credit accounts, make large purchases on credit, change jobs or become self-employed, make large undocumented deposits, or pay off accounts differently than planned. Lenders pull credit again just before closing — any significant change can affect your approval or rate.
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