Preapproval vs. Prequalification: Which One Do You Actually Need?

The difference in one table

Why SWMO sellers’ agents check for a preapproval letter

When you make an offer here, the listing agent’s first question is usually “is the buyer preapproved?” A preapproval letter tells them a lender has actually verified your income, assets, and credit — not just taken your word for it. Without one, your offer can get passed over, especially if another buyer’s offer comes in with a letter attached.

Documents you’ll need for a preapproval

• Recent pay stubs (usually last 30 days)
• W-2s and/or tax returns (last 2 years)
• Bank and asset statements (last 2 months)
• ID and Social Security number
• For self-employed buyers: more on the tax-return side

How long it takes and how long it lasts

A preapproval typically takes 1–3 business days once you have handed over documents. The letter is generally good for 30–90 days depending on the lender. If your home search runs longer, you refresh it — quick, since the lender already has your file.

Does it hurt your credit? (soft vs. hard pull)

• Prequalification usually uses a soft pull (or no pull) — no effect on your score.
• Preapproval uses a hard pull, which can lower your score by a few points temporarily, with recovery typically in a few months.
• Shopping multiple lenders? Mortgage inquiries within a short window (about 14–45 days depending on the scoring model) count as a single inquiry — so you can compare lenders without stacking up hits.

Preapproved does not mean guaranteed — what underwriting still checks

Frequently asked questions