Hard inquiries are the most over-worried factor in credit scoring. They matter, but far less than the attention they receive.

What triggers one

A hard inquiry occurs when you apply for credit and a lender reviews your report to make a lending decision. Credit card applications, mortgage and auto loan applications, and some rental and utility applications all generate them.

A hard inquiry requires your authorization. If one appears that you did not authorize, that is worth investigating — it can be a sign of identity theft.

The actual cost

New credit is about 10% of a FICO score, and inquiries are only part of that category. A single hard inquiry typically costs a few points on an established file.

The lifecycle of a hard inquiry
Time since inquiryEffect
0–12 monthsCounted by most scoring models; small point impact
12–24 monthsVisible on the report but generally no longer scored
After 24 monthsRemoved from the credit report entirely

The larger effect of a new account is usually not the inquiry at all — it is the reduction in your average account age, which lasts longer.

Rate shopping

Scoring models recognize that shopping for a single mortgage or auto loan means applying to several lenders. Multiple inquiries of the same type within a defined window are grouped and counted as one.

The window varies by model — commonly 14 to 45 days. Doing your rate shopping inside a two-week period is the safe approach that satisfies every version.

When inquiries matter more

The point cost is small, but lenders look at inquiries directly during manual review, separately from the score. Several recent inquiries can read as demand for credit, which weakens approvals regardless of what the score says.

This matters most in two situations: mortgage underwriting, where recent credit activity is examined closely, and credit card approvals at issuers that apply internal rules about the number of recently opened accounts.

Managing them

  1. Use pre-qualification tools, which use soft inquiries, before applying for a card.
  2. Space card applications three to six months apart.
  3. Do mortgage and auto rate shopping inside a two-week window.
  4. Do not apply for new credit in the six to twelve months before a mortgage application.
  5. Check your report periodically for inquiries you did not authorize.

Disputing an unauthorized inquiry

If an inquiry appears that you did not authorize, dispute it with the credit bureau. If you suspect identity theft, the FTC's IdentityTheft.gov provides a recovery plan, and you can place a fraud alert or a security freeze with each bureau at no cost.

A security freeze prevents new accounts being opened in your name and can be lifted temporarily when you legitimately need credit. It has no effect on your score.