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How to Get Preapproved for a Mortgage: Steps, Documents, Timeline

What preapproval involves, the documents lenders ask for, how long it takes and lasts, and the mistakes that cost people their approval before closing.

By Michael Bennett · Reviewed by Legamoney Mortgage & Lending Desk

1 min read308 words

House keys resting on a plain table in front of a softly blurred suburban home
House keys resting on a plain table in front of a softly blurred suburban home

Key takeaways

  • Prequalification is an estimate; preapproval involves verified documents and a credit pull.
  • Most preapproval letters are valid for 60 to 90 days.
  • Rate-shopping multiple lenders in a short window typically counts as a single credit inquiry.
  • Preapproval is conditional — new debt or a job change before closing can void it.
In this guide

Preapproval versus prequalification

Two very different pieces of paper

PrequalificationPreapproval
Information usedSelf-reportedDocumented and verified
Credit checkSoft or noneHard inquiry
Typical turnaroundMinutesOne to several days
Weight with sellersLowExpected on competitive offers

Scroll the table horizontally to see all columns.

Before you apply

  1. Pull your credit reports and dispute any errors — corrections take weeks.
  2. Pay down revolving balances; utilisation moves scores quickly.
  3. Leave large deposits and new credit accounts alone until closing.
  4. Assemble the paperwork below so nothing stalls mid-application.

Documents lenders normally request

  • Photo ID and Social Security number.
  • Two most recent pay stubs, or two years of tax returns if self-employed.
  • W-2s or 1099s covering the last two years.
  • Two to three months of bank and investment statements.
  • Documentation for any gift funds toward the down payment.
  • Records of other debts: car loans, student loans, credit cards.

The process, end to end

Typical preapproval timeline

StageWhat happensTypical duration
ApplicationSubmit details and authorise a credit pullUnder an hour
Document reviewLender verifies income, assets, employment1–3 business days
Underwriting decisionConditional approval issued1–5 business days
Preapproval letterStates the maximum loan and conditionsSame day as decision

Scroll the table horizontally to see all columns.

Shop more than one lender

Credit scoring models treat multiple mortgage inquiries within a short shopping window as a single event, so comparing three or four lenders does not compound the credit impact. Compare the Loan Estimates side by side on rate, APR, origination fees, and lender credits. Model the outcome first with the mortgage payment calculator and the closing cost calculator.

How to keep the approval alive

Sources

  1. 01
    Consumer Financial Protection Bureau — mortgage guidance and Ability-to-Repay rule

    Regulator

    Federal consumer guidance on mortgages, disclosures, and lender underwriting obligations.

  2. 02
    Federal Housing Finance Agency — conforming loan limits

    Regulator

    Annual baseline and high-cost-area limits for conforming conventional mortgages.

Frequently asked questions

How long does mortgage preapproval take?

Typically one to five business days once complete documents are submitted. Some lenders issue automated preapprovals within hours, but those still depend on later document verification.

How long is a preapproval letter good for?

Usually 60 to 90 days, because credit and income data go stale. Renewal generally requires updated pay stubs and a fresh credit check.

Does preapproval hurt your credit score?

A hard inquiry has a small, short-lived effect. Multiple mortgage inquiries inside the shopping window are generally counted once, so comparing lenders is not penalised.

Can you be denied after preapproval?

Yes. Preapproval is conditional on nothing material changing and on the property appraising adequately. New debt, income changes, or a low appraisal can all derail it.

Editorial transparency

Written by
Michael Bennett — Mortgage writer — home financing, refinancing and interest rates
Reviewed by
Legamoney Mortgage & Lending Desk — Editorial desk — mortgages, home equity, and consumer credit
How this was researched
Process steps follow standard US mortgage origination practice and CFPB guidance on shopping for a mortgage.
Corrections
Spotted an error? Tell us and we will correct and re-date the page. See our editorial policy.
Advertising disclosure
Ad placements are clearly labelled and never influence editorial judgement or the ordering of comparisons.

About the author

Michael Bennett

Mortgage writer — home financing, refinancing and interest rates

Michael Bennett writes Legamoney's mortgage coverage: payment and amortisation maths, refinancing decisions, preapproval and underwriting, home equity and reverse mortgages. He works from HUD programme handbooks, CFPB rules under TILA and Regulation Z, and the FHFA conforming loan limits, and links to the weekly Freddie Mac survey rather than quoting a fixed rate. He works with the Legamoney Mortgage & Lending Desk.

How this article was checked
  • Every factual claim is traced to a named regulator, government agency, or the provider's own published terms before publication.
  • Figures that change — rates, limits, thresholds — link to the primary source that publishes them rather than being quoted as a fixed number.
  • Worked examples are shown as full arithmetic so a reader can reproduce the result independently.
  • Each guide is checked by the owning editorial desk before it is published, and again whenever the underlying rules change.

Covers: Mortgage payment and amortisation maths · Refinancing, break-even and closing costs · Preapproval, underwriting and affordability · Home equity, HELOCs and reverse mortgages

All articles by Michael Bennett

Reviewed by

Legamoney Mortgage & Lending Desk

Editorial desk — mortgages, home equity, and consumer credit

Review date: August 14, 2026

Disclaimer
Lender requirements and timelines vary. This article describes common US practice and is not a commitment to lend. Consult a qualified professional before acting on any information here. Read our full disclaimer.

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