Credit for a mortgage
Shopping lenders without hurting your credit: the 45-day window
Many buyers get one quote because they fear each credit check will lower their score. The CFPB says that worry is mostly misplaced. Mortgage credit checks within a 45-day window are recorded as a single inquiry, so you can compare lenders and save money without extra damage.
Reviewed November 2026 · Written for Buy Home Tips from the sources listed below
Comparing lenders is one of the most reliable ways to lower the cost of a mortgage, and it requires each lender to check your credit. The CFPB explains how credit reporting treats those checks so that shopping does not punish you.
What an inquiry is
When a lender checks your credit, the credit reporting companies record an inquiry. The CFPB says an inquiry typically has a small negative effect on your scores, because it tells other lenders you may be taking on new debt. Inquiries are a normal part of applying for a mortgage, so you cannot avoid them completely.
The 45-day window
The CFPB's answer is direct: within a 45-day window, multiple credit checks from mortgage lenders are recorded on your credit report as a single inquiry. The effect is the same whether you talk to two lenders or six, as long as the last check falls within 45 days of the first.
That means the smart move is not to avoid credit checks but to bunch them together.
Plan your shopping
Check your own reports first. The CFPB notes that checking your own credit does not affect your score. Get your reports free at AnnualCreditReport.com, fix errors, then start shopping.
Line up lenders before the first check. Pick a mix, such as a bank, a credit union and a mortgage broker or online lender.
Ask for Loan Estimates. The CFPB explains that a lender must give you a Loan Estimate once you provide six pieces of information: your name, income, Social Security number, the property address, an estimated value and the loan amount. Lenders must send it within three business days.
Keep the timeline tight. Note the date of the first credit check and finish collecting estimates before day 45.
What to avoid while you shop and wait
The CFPB advises against applying for credit cards, car loans or other loans right before or during the mortgage process. Each of those creates its own inquiry, and new debt can change your debt-to-income ratio.
Fannie Mae's Selling Guide tells lenders to examine inquiries to see whether they represent new credit. If new debt was obtained, the lender may need to correct your application and resubmit it. A new store card opened to save 15 percent on furniture can cause exactly that kind of delay.
Preapproval timing
Many buyers get preapproved months before they find a home. If a preapproval is old, the lender may pull credit again before closing. That later check may fall outside your shopping window, which is normal. The CFPB notes that shopping is usually still worth it, because one more inquiry has a small effect compared with the savings.
Comparing what you get
Once you have estimates, compare them on page 2: origination charges, points and lender credits. Ask each lender for the same loan amount, term and lock period, on the same day, so the comparison is fair. The reading a Loan Estimate guide walks through each section.
The bottom line
Do not settle for one quote out of fear for your score. Check your own reports, line up lenders, and keep all mortgage credit checks within 45 days. Then hold off on new credit until after closing.
Mini calculator: count the days on a contract clock
Enter the start date and the number of days in the clause to see the deadline. Check whether your contract counts calendar days or business days.
A planning aid. Your contract and local practice decide how days are counted and when the clock starts.
Shopping lenders inside the window
- Check your own credit reports first; it does not affect your score.
- Pick three or more lenders before the first credit check.
- Note the date of the first mortgage credit check.
- Use the calculator with 45 days to find the end of the window.
- Request Loan Estimates from every lender before that date.
- Avoid card, car and other loan applications until after closing.
Questions buyers ask
Does shopping for a mortgage hurt my credit?
The CFPB says no, as long as you do it within a 45-day window. Multiple credit checks from mortgage lenders in that period are recorded as a single inquiry, because lenders know you are only buying one home.
How much does one inquiry affect my score?
The CFPB says an inquiry typically has a small negative effect. The savings from comparing lenders usually outweigh it.
Does checking my own credit lower my score?
No. The CFPB explains that checking your own credit report or score is not treated as a lender inquiry and does not affect your scores.
What if a lender checks my credit after 45 days?
It may count as a separate inquiry. The CFPB notes that shopping is usually still worth it, because the effect of one more inquiry is small compared with the possible savings.
Sources checked for this page
- CFPB: what happens when a mortgage lender checks my credit
- CFPB: what information do I have to provide to get a Loan Estimate
- AnnualCreditReport.com: free credit reports
- Fannie Mae Selling Guide B3-5.3-09: DU credit report analysis
Checked November 2026. Programs and limits change; confirm with the source before you rely on a figure.