Credit bureaus know people shop around for mortgages and auto loans, so they generally consider multiple hard checks performed within two to three
weeks as a single inquiry.
Not exact matches
Any mortgage
inquiries within a normal shopping period — which can be from two
weeks to 45 days, depending on the version of the FICO score — will count
as a
single inquiry for scoring purposes, no matter how many applications you complete.
VantageScore counts auto loan and mortgage
inquiries made within two
weeks of one another
as a
single inquiry.)
That being said, a group of hard
inquiries that appear within a
week or two of each other will only count
as a
single hit, so your best bet is to wait until you are ready to purchase.
That's a bit different from applying for other types of credit, such
as a mortgage, because if you apply for a mortgage from six different banks, say, your credit report will still just list it
as a
single inquiry if you do it within a concentrated period of time (like two
weeks or so) since you're really just applying for a
single line of new credit for that one mortgage.