What Actually Moves Your Credit Score, Ranked by Weight
Utilisation and payment history decide roughly two thirds of the number. Closing an old card, checking your own report and carrying a small balance do not do what people think.
- Published
- Read
- 6 min
- 65%
- Decided by payment history and utilisation
- 30 days
- Before a late payment can be reported
- $0
- Score benefit of carrying a balance
§On this page(10)
- 01The five factors, by weight
- 02Utilisation: the fast lever
- 03Payment history: the heavy one
- 04Four things that do not work the way people think
- 05Carrying a balance to build credit
- 06Closing cards you no longer use
- 07Checking your own credit
- 08Rate shopping ruining your score
- 09A realistic repair sequence
- 10Frequently asked questions
Credit scoring is treated as mysterious, and it is not. The dominant models publish the weights, and two factors account for around 65% of the outcome: whether you pay on time, and how much of your available credit you are using. Almost everything else people worry about competes for the remaining third.
This piece ranks the factors by how much they matter, says how fast each one responds, and disposes of four pieces of advice that circulate endlessly without being true.
The five factors, by weight
| Factor | Weight | What it responds to | How fast it moves |
|---|---|---|---|
| Payment history | 35% | On-time payments; delinquencies, collections, public records | Slow. Years |
| Amounts owed | 30% | Balances against limits, overall and per card | Fast. One cycle |
| Length of history | 15% | Age of oldest account and average account age | Very slow |
| Credit mix | 10% | Having both revolving and instalment accounts | Slow |
| New credit | 10% | Hard inquiries and recently opened accounts | Moderate. Months |
Weights are those published for the general-purpose FICO models. VantageScore uses a similar structure with somewhat different emphasis; both are dominated by the same top two factors.
The practical reading of this table is that one factor is fast and one is heavy, and they are different factors. If you need points before an application, utilisation is the only lever that works in weeks. If you are repairing damage, payment history is the work and it takes years.
Utilisation: the fast lever
Utilisation is your reported balances divided by your limits. It is calculated from what the issuer reports on the statement date, not from what you owe after paying, which is why people who pay in full every month are sometimes surprised by a mediocre score.
| Utilisation | Typical effect | Notes |
|---|---|---|
| Under 10% | Best band | The optimum; 1%–9% scores marginally above 0% |
| 10%–29% | −5 to −15 | Still healthy |
| 30%–49% | −20 to −45 | The threshold most advice cites |
| 50%–74% | −45 to −80 | Meaningful damage |
| 75%–100% | −80 to −130 | Severe, and visible to any lender |
| Over 100% | Additional penalty | Over-limit is treated as its own negative |
Ranges are approximate and depend on the rest of the file. A thin file moves further on the same change than a thick one.
Two details that matter more than the headline number. First, the models look at per-card utilisation as well as overall: one card at 95% while the total sits at 20% still costs points. Second, because it recalculates monthly, there is a reliable trick. Pay the balance down before the statement closes, not before the due date. The statement balance is what gets reported.
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Plan the payoff order across several balances
Payment history: the heavy one
Nothing else in the file does the damage a missed payment does. The nuance worth knowing is the timing: an account is not reported late until it is 30 days past due. A payment three days late incurs a fee from the issuer but does not reach the credit bureaus.
| Stage | Reported? | Typical impact | Stays on file |
|---|---|---|---|
| 1–29 days late | No | Late fee only | — |
| 30 days | Yes | −60 to −110 | 7 years |
| 60 days | Yes | −80 to −130 | 7 years |
| 90+ days | Yes | −100 to −150 | 7 years |
| Charge-off / collection | Yes | Severe | 7 years from first delinquency |
Higher scores fall further. A 780 file loses more points from a first late payment than a 640 file, because the 640 file has already priced in the risk.
If you have missed one payment in an otherwise clean history, calling the issuer and asking for a goodwill removal genuinely works a reasonable proportion of the time. It is not a right and there is no leverage, it is a request, and it works best when the account is long-standing and current.
Four things that do not work the way people think
Carrying a balance to build credit
This is the most expensive myth in personal finance. The issuer reports the statement balance and the payment status; paying in full reports an on-time payment exactly as paying the minimum does. Carrying a balance buys interest, nothing else.
Closing cards you no longer use
Closing a card removes its limit from your utilisation calculation immediately, which can raise utilisation sharply. A closed account in good standing remains on the report for around ten years, so the age benefit persists for a while, but the limit is gone the moment the account closes. If a card has no annual fee, leaving it open with a small recurring charge and autopay costs nothing.
Checking your own credit
Pulling your own report is a soft inquiry and has never been part of any scoring model. You are entitled to free reports from each of the three bureaus, and checking them is how errors get found, which matters, because errors are common enough to be worth looking for.
Rate shopping ruining your score
Mortgage, auto and student loan inquiries within a shopping window, 14 to 45 days depending on the model. Are treated as a single inquiry. Comparing five mortgage lenders in one week costs what comparing one costs. Credit card applications are not bundled this way and are counted individually.
A realistic repair sequence
In the order that produces results
Stop new damage
Autopay the minimum on every account today. It costs nothing, prevents the single most damaging event, and removes the problem from your attention.
Pull all three reports and dispute errors
Accounts you do not recognise, balances that are wrong, delinquencies past seven years. Disputes are free and the bureaus must investigate within 30 days.
Attack utilisation
Pay down the highest-utilisation card first for score purposes. This is the one case where the score-optimal order differs from the interest-optimal one. Then ask for limit increases on cards you are not using.
Leave old accounts alone
Do not close anything. Do not open anything you do not need. Age accumulates on its own if you stop interfering with it.
Wait
Utilisation moves in a month. Inquiries fade in a year. Delinquencies take years and there is no legitimate way to accelerate them, which is exactly what credit repair companies charge to pretend otherwise.
Expect a file with high utilisation and no delinquencies to move 40 to 80 points in two or three months once balances come down. A file with recent missed payments will move slowly for a year and then faster as those events age. Anyone promising more than that, faster, is selling something a dispute letter does for free.
Frequently asked questions
- How long does it take to raise a credit score by 100 points?
- If the problem is utilisation, two to three months. If the problem is delinquencies, one to two years of clean history. The starting point matters, files in the 500s move faster than files in the 700s because there is more room.
- Does income affect my credit score?
- No. Income appears on applications and affects lender decisions, but it is not in any scoring model and does not appear on your credit report.
- Do I need to carry different types of credit?
- Credit mix is 10% and is not worth taking on debt to satisfy. If you have a card and a loan, you already have a mix. Do not finance something to improve it.
- Why is my score different on every site?
- There are many scoring models and three bureaus with slightly different data. A 30-point spread between sources is normal. The version a mortgage lender pulls is often older and stricter than the one your card app shows.
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