Credit scores feel delicate because they're mysterious. Most consumers can't explain how their score is calculated, and the notion that someone else can make it drop simply by looking at it taps into a protective reflex.
Debt collectors and predatory creditors have taught consumers to treat all credit activity as hostile.
A recent Zillow Home Loans and Harris Poll survey of more than 3,000 adults found that 30 percent of prospective homebuyers who didn't plan to shop for a mortgage pointed to fear of hurting their credit score as the reason. That fear isn't just unfounded. It's costly.
What Actually Happens When a Lender Pulls Your Credit
The Mechanics of a Hard Inquiry
When you apply for mortgage preapproval, the lender orders what's known in the industry as a tri-merge credit report. That's a combined report that draws data from the three major credit-reporting agencies: Equifax, Experian and TransUnion. The lender looks at your middle score from each agency, and if you're applying with a co-borrower, uses the lower of the two middle scores to determine whether you qualify.
The tri-merge pull registers as a hard inquiry on each agency's report. Unlike a soft inquiry, which occurs when you check your own score or receive a preapproved credit card offer, a hard inquiry is visible to other lenders and can affect your score.
The keyword there is "slightly." According to FICO, the company behind the scoring model used in roughly 90 percent of all U.S. lending decisions, a single hard inquiry drops the average score by fewer than five points. The truth is that for most people, the impact is less than that.
What FICO Doesn't Tell Consumers
The distribution of how inquiries affect all consumers is publicly available from FICO. This should calm the nerves of worried home shoppers.
57 percent of all consumers already receive the best possible score for inquiries, which means any new hard inquiry has no mathematical impact whatsoever on their score. Only 14 percent of consumers lose more than 10 points due to inquiries of any kind, and only 4 percent lose more than 20 points. Inquiries are the leading factor determining a FICO Score only 0.4 percent of the time.
The entire "new credit" category, which includes inquiries and other factors, accounts for only 10 percent of a FICO Score. To put that in context, the FICO scoring range is 300-850. A sub-five point reduction is less than 1 percent of the total range. For someone with a score of 740, the difference between a 740 and 736 does not affect their mortgage rate or mortgage approvals.
What FICO Doesn't Tell Consumers, Part II: Rate Shopping Protections
The 30-Day Grace Period That Makes Inquiries Disappear
Now, here's the part that should completely shift your understanding of how to shop for a mortgage. FICO has a two-part system in place that is intended to allow consumers to shop around without being penalized.
The first part is a 30-day grace period. Any mortgage-related inquiries less than 30 days old when the score is calculated are not considered by the FICO scoring model at all. They are treated as though they don't exist. If you apply with five different lenders over a two-week period, and a sixth lender orders your credit score on day 20, those first five inquiries are ignored.
That means that during the time when you are applying and lenders are pulling your credit, the inquiries are having zero effect on the score that lenders are seeing.
The Deduplication Period That Tries to Keep Inquiries to Just One
The second part of the system takes over after the 30-day grace period has expired. Once your mortgage inquiries are more than 30 days old, the FICO scoring model deduplicates them and treats multiple inquiries as a single inquiry for scoring purposes. For FICO 8 and all more recent models, this deduplication period is 45 days.
For VantageScore models, it's 14 days.
The Consumer Financial Protection Bureau describes this benefit directly in its official consumer advice: "For example, if you're shopping for the best mortgage rate, a scoring model might count inquiries relating to that as just one hard inquiry if they take place within a 45-day window. This is because other lenders will understand that you are shopping around for a single loan."
Here's the key point: If you apply for three, five or even seven mortgage loans within a 45-day period, FICO Scores count all of those loan applications as one single inquiry. The FICO Score models were specifically designed to encourage comparison shopping, not to penalize it.
The Real Costs of Not Shopping Around
What the Data Shows About Consumers Who Take the First Offer
The greatest irony of the credit score fear that prevents consumers from shopping for a mortgage is that those who don't shop, in order to protect a few points on their credit scores, end up costing themselves thousands of dollars in the long run.
According to a recent study by Freddie Mac, by getting one additional rate quote a borrower can save an average of $1,500 over the life of the loan. Getting five quotes can save them an average of $2,914. As rates rose in 2022 and 2023, the savings only got bigger.
According to a follow-up study from Freddie Mac, rate dispersion between lenders roughly doubled in a higher-rate environment, with borrowers who shopped four or more lenders saving over $1,200 per year. A new 2025 study from LendingTree reported that borrowers in the nation's largest markets could save, on average, $80,024 over the life of a 30-year mortgage by comparing different offers.
"When you think about it, it seems counterintuitive that consumers would shop around more for a pair of shoes or a winter coat than they would for something as substantial as a mortgage that they'll pay thousands a month for," said Sam Khater, chief economist at Freddie Mac, in a recent interview with Bankrate.com.
After all, for most of us, a mortgage is the single largest financial obligation we'll ever undertake.
How Many Consumers Are Leaving Money on the Table
According to the CFPB's National Survey of Mortgage Borrowers, 47 percent of borrowers seriously considered only one lender, while 77 percent of borrowers applied to only one lender or broker. A recent survey by LendingTree found that 54 percent of homebuyers received just one mortgage offer for their most recent home purchase.
Of those who did shop around, 45 percent were offered a better rate than they were initially quoted, according to the CFPB. In fact, the CFPB estimates that if just 20 percent of homebuyers obtained one extra rate quote, borrowers would save up to $4 billion per year.
These aren't imaginary figures, they're real money that real people are sacrificing because they've heard that applying for a mortgage will devastate their credit score.
The Real Risk in the Preapproval Process: Collection Triggers and the Trigger Effect
If there really is a danger lurking in the preapproval process, it isn't the hard pull. It's a little-known industry practice consumer advocates have been warning about for years. The credit bureaus all sell products called things like Collection Triggers, Risk Triggers and Triggers Collection.
When a mortgage pull shows up on your report, it tells debt collectors you might now have the means to pay them. When collection agencies holding an old debt you didn't know about see the signal, they may place it on your report. The resulting credit score damage can exceed 50 points.
That's not the pull lowering your score. That's the pull alerting the collectors to place negative items on your report that lower your score. There's a huge difference. One myFICO Forums member reports that two days after preapproval, a collection hit his report and dropped his credit score 53 points from 643. The preapproval didn't ding him. It simply triggered a chain reaction.
The Preapproval-to-Closing Timeframe Is What You Need to Be Concerned About
We've found dozens of consumer forum threads where consumers describe the same sequence of events. The most damaging credit reporting issues most consumers face in the home buying process have almost nothing to do with the pull. Instead, they have everything to do with what happens between preapproval and closing.
Opening new credit cards, financing furniture or appliances, putting large purchases on existing credit card accounts, missing payments on any account, and cosigning loans for others between the preapproval and closing can result in score drops that dwarf anything a preapproval pull could produce.
Lenders typically pull your credit again before closing to make sure nothing has changed. If you're going to worry about your credit score during the mortgage process, worry about keeping your credit picture stable between preapproval and closing.
Don't open new accounts. Don't increase your balances. Don't take any action that changes your debt-to-income ratio.
What to Do If Errors Show Up on Your Credit Report During the Mortgage Process
Why Report Accuracy Matters More Than Inquiry Anxiety
According to an FTC study, 23 percent of consumers identified inaccurate information on their credit reports. That statistic alone should make you more concerned about the accuracy of your credit report than you are about the effects of an inquiry. A single misreported late payment, an account that isn't yours or a collection that you already paid can wreak havoc on your credit score.
The Fair Credit Reporting Act gives you the right to dispute errors on your credit report, and it requires the credit reporting agencies to investigate your claims within 30 days. If you're preparing to buy a home, pulling your reports and checking for errors before you apply is one of the most valuable actions you can take. It's a soft pull and won't affect your credit score at all.
The CFPB has been busy on this front. In January 2025, the Bureau ordered Equifax to pay a $15 million penalty for failing to properly investigate consumer disputes about errors on their credit reports. If you find errors on your reports during the mortgage process, you have both the legal tools and the practical resources to challenge them.
The Difference Between an Inquiry and an Error
A valid hard inquiry from a mortgage lender you have authorized is not an error and typically cannot be removed from your credit report. The inquiry will remain on your report for two years, although FICO Scores only consider inquiries from the past 12 months. At the one-year mark, the inquiry has zero impact on your FICO Scores even though it still shows up on the report.
An unauthorized inquiry, a duplicate inquiry, or an inquiry from a company you never approached is another story. Under the FCRA, you have the right to dispute inquiries that were not properly authorized. You also have the right to know who has accessed your credit file and to receive an explanation if you are denied credit.
If you see a collection on your report following a mortgage inquiry, and you do not recognize the debt or believe you have already paid it, that is precisely the type of item you should dispute. Do not contact the collection agency directly. Instead, use your rights under the credit bureau dispute process or work with a consumer advocacy firm that knows the law.
The Bottom Line on Preapproval and Your Credit
Fear Is Costing Borrowers Far More Than Inquiries Ever Could
The data is clear. A mortgage preapproval hard inquiry will typically cost you fewer than five points. For more than half of all consumers, it will cost you nothing at all. The 30-day grace period and 45-day deduplication window mean you can shop very aggressively with a variety of lenders and end up with the same scoring impact as a single application.
Meanwhile, the cost of not shopping, largely due to unnecessary credit score fears, amounts to tens of thousands of dollars over the life of a loan.
The Urban Institute has determined that the rate differences among lenders on any given day, for borrowers with otherwise identical risk profiles, is actually greater than the spread between excellent and bad credit. Shopping can matter more than your credit score.
Do not allow a credit score myth to prevent you from securing the best mortgage rate you can qualify for. Get preapproved. Get preapproved with multiple lenders. Do so within a 14-day window to appease every scoring model on the market. And place your real emphasis on the factors that truly affect your finances during the homebuying process.
Protect Your Credit Report, Not Just Your Credit Score
If you are in the process of buying a home, the single most valuable action you can take today is to review your credit reports for errors, inaccuracies and accounts that do not belong to you. A clean credit report is the best way to protect yourself far more than avoiding a hard inquiry ever will be.
FightCollections.com helps consumers identify and dispute mistaken items on their credit reports, challenges unlawful collection practices and educates consumers about their rights under the Fair Credit Reporting Act and other federal consumer protection laws. If something is not right on your credit report, we can help you determine how to proceed.
Order your free annual credit reports at AnnualCreditReport.com, and visit FightCollections.com if you find errors that need to be corrected before or during the mortgage process.
