Quick Answer

What Do Mortgage Underwriters Do?

Reviewed by Jay SabineCeMAP Qualified29 years experience

Underwriters assess mortgage applications to decide approval. They verify income, check credit, review affordability, and ensure criteria are met. Takes 1-5 days typically.

Mortgage underwriters are the behind-the-scenes decision-makers who determine whether your mortgage application is approved. When you apply for a mortgage, the underwriter receives your application and supporting documents. They methodically verify that everything you've stated is accurate - checking payslips match stated income, bank statements show affordability, credit reports are acceptable, and the property valuation supports the loan. They apply the lender's specific criteria and policies to make a decision: approve, decline, or refer for additional review.

Your property may be repossessed if you do not keep up repayments on your mortgage.

Key Points

  • 1Verify income matches documents provided
  • 2Check credit report and score
  • 3Review bank statements for affordability
  • 4Assess property valuation and condition
  • 5Ensure application meets lender criteria
  • 6Make approve/decline/refer decision

Eligibility Criteria

  • Income verified against payslips/accounts
  • Credit score within lender thresholds
  • Affordability stress tested
  • Property valuation supports loan amount
  • Employment/income stability demonstrated

Typical Timeframe

Standard underwriting takes 1-5 working days. Complex cases (self-employed, adverse credit, non-standard properties) may take 1-2 weeks. Respond promptly to any requests for additional documents to avoid delays.

Next Steps

  1. 1Gather all required documents before applying
  2. 2Ensure bank statements show responsible spending
  3. 3Check your credit report for errors
  4. 4Avoid new credit applications during process
  5. 5Respond quickly to underwriter queries

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Related Questions

For more detailed information about this topic, visit our comprehensive guide:

Mortgages
Jay Sabine
CeMAP Qualified
29 Years Experience

Content reviewed: 13 January 2026

What Underwriters Review

Income Verification
  • Payslips (3 months)
  • P60 / Tax calculations
  • Accounts (self-employed)
  • Employment contracts
Credit Assessment
  • Credit score and history
  • Outstanding debts
  • Missed payments/defaults
  • CCJs, IVAs, bankruptcy
Bank Statements
  • Regular income received
  • Spending patterns
  • Gambling transactions
  • Overdraft usage

Underwriting Outcomes

Approved

Application meets all criteria. Formal mortgage offer issued and sent to solicitor. Proceed with conveyancing.

Referred

Additional information needed. Underwriter requests documents or clarification. Respond promptly to avoid delays.

Declined

Application doesn't meet criteria. Ask for the reason. A broker can find alternative lenders or address issues.

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