Unlike the US with its single dominant FICO score, the UK has three main credit reference agencies — Experian, Equifax, and TransUnion — each with different scales and scores. Lenders typically check one or two of these, and a rejection from one lender doesn't mean rejection everywhere.
The three UK credit reference agencies
| Agency | Score range | "Good" score | Free access |
|---|---|---|---|
| Experian | 0–999 | 881+ | MSE Credit Club, Experian app |
| Equifax | 0–1000 | 531+ | ClearScore (free) |
| TransUnion | 0–710 | 566+ | Credit Karma, NatWest app |
What actually affects your UK credit score
- Payment history (most important): Any missed payments stay for 6 years. Even a single missed payment can drop your score significantly.
- Electoral roll registration: Being registered to vote at your current address is one of the quickest wins — it confirms your identity and address to lenders.
- Credit utilisation: Using less than 25-30% of your available credit limit improves your score.
- Length of credit history: Older accounts help. Don't close old credit cards if you don't need to.
- Hard searches: Each full credit application leaves a hard search visible for 12 months. Multiple applications in a short period raises red flags.
💡 Register to vote — the fastest free credit score fix
Registering on the electoral roll at your current address is free, takes 5 minutes at gov.uk/register-to-vote, and can improve your credit score within a month. It's consistently cited as the single fastest actionable improvement for people new to the UK or who have recently moved.
Building credit from scratch in the UK
- Get a credit-builder credit card (Aqua, Capital One, Vanquis) — spend a small fixed amount monthly and pay in full every month
- Never miss a payment — set up a direct debit for the minimum at minimum
- Keep utilisation low (under 25% of your credit limit)
- Within 12-18 months of consistent behaviour, scores improve substantially
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