A mortgage preapproval that uses a hard credit inquiry can have a small negative effect on a credit score. The CFPB explains that multiple mortgage inquiries made within a 45-day shopping window are generally recorded as a single inquiry for scoring purposes. Some lenders may also begin with a soft inquiry, which does not affect the score.

What matters most

  • Ask whether the initial review uses a soft pull or hard pull and when a full credit report will be required.
  • Keep mortgage shopping focused in a short window when possible.
  • Avoid opening new credit cards, auto loans, or other debt before or during the mortgage process without discussing it first.

How to use this answer

The small inquiry impact should be weighed against the value of finding problems before writing an offer. A useful preapproval reviews income, assets, debts, credit, and documentation—not just a verbal estimate. Checking your own credit reports does not affect your scores.

A simple example

A buyer who speaks with three mortgage lenders during the same focused shopping period may see those mortgage inquiries treated as one for scoring. Applying for a car loan during that period is a different type of inquiry and can create a separate effect and a new monthly debt.

What to review before you decide

  • Confirm the loan program, occupancy, property type, and timeline.
  • Review the complete payment and cash-to-close estimate, not one number in isolation.
  • Verify current program rules and lender requirements before moving money or signing a contract.

Frequently asked questions

Questions readers often ask next.

Is a soft-pull prequalification the same as a full preapproval?

Not always. Ask what documents and credit information were reviewed and what conditions remain.

Will the lender check credit again before closing?

A lender may refresh credit or monitor for new debt before closing. Avoid major credit changes during the process.

Sources

Sources used for this article.

  1. What happens when a mortgage lender checks my credit? — Consumer Financial Protection Bureau • Accessed August 17, 2026
  2. Get a preapproval letter — Consumer Financial Protection Bureau • Accessed August 17, 2026