What is a credit score?
A credit score is a number that summarises how you've handled borrowed money: whether you pay on time, how much you owe, and how long you've been doing it. Lenders use it — along with your income and other details — to predict how likely you are to repay, and to set the interest rates they offer you. Landlords, and sometimes employers or insurers (depending on where you live), may also look at credit information.
There isn't one single score. Different scoring companies (FICO and VantageScore are the best known) calculate their own versions from the information held by the credit bureaus, so your scores can differ slightly between providers. That's normal and nothing to worry about — what matters is the overall picture and its direction over time. Scores commonly use a range of roughly 300 to 850, with higher being better.
The 5 factors behind your score
FICO publishes the broad ingredients of its score and roughly how much each counts. Other models are similar in spirit:
| Factor | Approx. weight (FICO) | What it means |
|---|---|---|
| Payment history | ~35% | Whether you pay bills and debts on time. The single biggest factor — late payments hurt, and recent ones hurt most. |
| Amounts owed | ~30% | How much you owe, especially how much of your available credit card limits you're using (your “utilisation”). Using a small share looks better than being near your limits. |
| Length of credit history | ~15% | How long your accounts have been open. Older accounts help, which is why closing your oldest card can be a downside. |
| Credit mix | ~10% | Having a mix of account types (cards, a loan, etc.) handled responsibly. A small factor — never open accounts just for this. |
| New credit | ~10% | Recent applications and newly opened accounts. Several applications in a short burst can look risky to lenders. |
Read that table as good news: the two heaviest factors — paying on time and keeping balances modest — are everyday habits entirely within your control.
How to improve your credit score: the habits that work
- Pay everything on time, every time Set up autopay for at least the minimum on every card and loan, and pay bills by their due dates. One missed payment can linger on your report for years, so this habit outranks everything else.
- Keep credit card balances low compared with their limits If you have a $1,000 limit and regularly carry a $900 balance, you're using 90% of your available credit — a red flag to scoring models. Paying balances down (our debt payoff guide shows how) or paying mid-month before the statement closes both reduce the utilisation that gets reported.
- Check your credit reports for errors Mistakes happen — wrong balances, accounts that aren't yours, payments marked late that weren't. In the US you can check your reports free via AnnualCreditReport.com, the federally authorised site; many other countries have equivalent free services. Dispute errors with the bureau and they'll investigate.
- Don't close your oldest card without thinking Closing an old card shortens your visible credit history and reduces your total available credit, which can raise your utilisation. If the card has no annual fee, keeping it open with an occasional small purchase paid in full is usually the better move — unless the temptation to spend outweighs the benefit.
- Apply for new credit sparingly Each application can leave a mark and temporarily dip your score. Apply when you need credit, not for every store-card discount offered at a checkout.
- Give it time — and keep going Scores reward patterns, not moments. Months of on-time payments and shrinking balances move the number steadily. Check your progress every few months rather than daily; small wiggles up and down are normal.
Credit score myths, busted
- “Checking my own score hurts it.” No. Checking your own score or reports is a “soft” check and doesn't affect your score at all. Check away.
- “I need to carry a balance to build credit.” No — and this myth is expensive. Paying your statement balance in full still builds a payment history. Carrying a balance just adds interest charges.
- “My income affects my score.” Income isn't part of the score calculation. Lenders may ask about income separately when deciding applications, but the score itself is about borrowing behaviour.
- “Paying off a debt erases it from my report instantly.” Paid accounts are updated, but records — good and bad — generally stay on reports for several years. The positive pattern you build matters more than any single entry.
- “A company can legally wipe accurate negative information for a fee.” No one can remove accurate information early. Paid “credit repair” promises like that are a red flag; everything legitimate they do (like disputing errors) you can do yourself for free.
What a better score actually gets you
A stronger score generally means more lenders willing to say yes, and lower interest rates when they do — which means the same loan costs less every single month. It can also smooth things like renting a home. It's worth improving gradually, as a side effect of good habits — not worth obsessing over daily.
All four habits start with a budget
On-time payments and low balances are much easier with a monthly plan. Build yours in about 30 minutes.
Frequently asked questions
How can I improve my credit score if I'm starting from scratch?
Start with one manageable account, use it lightly, and pay it in full and on time every month — that pattern is the foundation everything else builds on. Some people begin with a secured credit card (backed by a deposit) or by being added as an authorised user on a trusted family member's well-managed card. Then let time and consistency do their work.
How long does it take to improve a credit score?
Positive habits start registering within a few billing cycles, but meaningful improvement usually takes months of consistent on-time payments and lower balances. Negative marks fade in impact as they age. Anyone promising big improvements in days is not being straight with you.
What is a good credit score?
On the common 300–850 scale, lenders generally view scores in the high 600s as fair-to-good and scores from around the mid-700s upward as strong — though every lender sets its own thresholds, and models differ. Rather than chasing one magic number, aim for the habits: on time, every time, with balances well below your limits.
Does paying off debt improve my credit score?
Usually yes, over time: it lowers your credit utilisation and your overall amounts owed, which together account for a large share of the score. Combined with on-time payments, paying down card balances is one of the most reliable ways to nudge a score upward.
This guide is educational information, not financial advice. Score factors and weights above are FICO's published approximations; other scoring models differ. See our Disclaimer.