Why Did My Credit Score Drop? 7 Common Causes

Credit scores fluctuate constantly. If you've noticed a drop — even a small one — it's worth understanding why. Most score changes have a specific, identifiable cause, and most of those causes are either reversible or predictable. Here are the seven most common reasons credit scores fall.

#	Cause	Typical Score Impact	Recovery Time
1	Missed or late payment	−50 to −110 points	12–24 months of clean history
2	High credit utilization	−10 to −45 points	1 billing cycle after paydown
3	Hard inquiry (new application)	−2 to −10 points	12 months (disappears at 24 months)
4	Closed an old account	−5 to −25 points	Gradual; hard to reverse
5	New account opened	−5 to −15 points	6–12 months as history ages
6	Collection account added	−50 to −100 points	7 years (or earlier if disputed/paid)
7	Error on credit report	Varies widely	30–90 days after successful dispute

1. Missed or Late Payment

This is almost always the most damaging event. Payment history accounts for 35% of your FICO score — the largest single factor. A payment reported 30 or more days late can drop your score by 50–110 points depending on your starting point. Higher scores tend to take larger hits because the model has more to take away.

The good news: the impact fades over time. A late payment from two years ago hurts much less than one from last month. The damage is fully removed after seven years.

What to do: Bring the account current immediately if you can. Set up autopay for at least the minimum to prevent future occurrences. If it's a genuine first-time mistake, some lenders will remove a late payment from your report as a "goodwill" adjustment — it's worth asking.

2. High Credit Utilization

Even if you pay your credit card in full every month, a high balance on your statement closing date can look like high utilization to the scoring model. If your card reports a $2,400 balance on a $3,000 limit, that's 80% utilization — even if you intended to pay it off a week later.

What to do: Pay down balances before the statement closes (not just before the due date). Aim for under 30% utilization; under 10% is even better. This is one of the fastest-reversing causes — reduce your balance and your score recovers in one billing cycle. See our full guide on credit utilization.

3. A Hard Inquiry from a Loan Application

Applying for a new credit card, auto loan, or personal loan triggers a hard inquiry — a record that a lender checked your credit. This typically costs 2–10 points. Multiple inquiries of the same type within a short window (45 days for FICO) are usually treated as a single inquiry for rate-shopping purposes.

What to do: Don't apply for multiple unrelated credit products in a short period. The inquiry fades from impact within 12 months and disappears entirely after 24 months.

4. Closing an Old Credit Card

Closing a credit card affects your score in two ways: it reduces your total available credit (raising utilization) and can reduce your average account age. A card you've had for 10 years that you rarely use is quietly helping your score — closing it removes both contributions.

What to do: If there's no annual fee, keep old cards open and use them once every few months for a small purchase to prevent the issuer from closing them for inactivity. If you must close a card, prioritize closing newer accounts over older ones.

5. Opening a New Account

A new account lowers your average account age and adds a hard inquiry. This is temporary and the impact decreases as the account ages — but the first few months after opening a new account often show a small dip.

What to do: Be strategic about when you open new credit. If you're planning to apply for a mortgage or major loan in the next 6–12 months, avoid opening new accounts beforehand.

6. A Collection Account Added

An unpaid bill that gets sent to a collection agency becomes a collection account on your credit report — and the damage is severe. Even a small medical bill in collections can drop a good score by 50–100 points. Under newer FICO and VantageScore models, medical collections under $500 are excluded, but older models still count them.

What to do: Address the collection as quickly as possible. Paying it may or may not remove the record (depending on model version), but it stops the account from aging negatively and may allow you to negotiate removal. Read more in our guide on whether paying collections improves your credit score.

7. An Error on Your Credit Report

Studies suggest 20–25% of Americans have at least one error on their credit reports significant enough to affect their score. Common errors include: payments incorrectly marked late, accounts that don't belong to you (identity theft or mixed files), balances reported incorrectly, or negative items that should have aged off.

What to do: Pull your credit reports from AnnualCreditReport.com and review them carefully. If you find an error, you have the right to dispute it. The bureau has 30 days to investigate and respond. Our guide on how to dispute credit report errors covers the process step by step.

If your score dropped and you can't identify a cause, pull your full credit reports immediately. Unexplained drops are often the first sign of identity theft or a data error — both of which require prompt action.