What a soft search actually is
A soft search (also called a soft credit check, soft inquiry, soft footprint or quotation search) is a limited look at your credit file. It does not affect your credit score. It is invisible to other lenders. You can have unlimited soft searches without consequence.
Soft searches are used whenever someone needs to verify identity or assess creditworthiness without you formally applying for credit. The most common use case in 2026 is the eligibility checker, a tool that shows you which credit cards or loans you are likely to be approved for and your likely personal APR, all without leaving a footprint visible to lenders.
Soft searches appear on your credit file for 12 months but only you can see them when you check your own report. Other lenders cannot.
What a hard search actually is
A hard search (also called a hard credit check, hard inquiry or hard footprint) is a full credit check run when you formally apply for credit. It leaves a visible record on your credit file that other lenders can see when they search your file later. Each hard search drops your score temporarily.
Per Experian. The score impact fades over the 12-month visibility window. A single hard search rarely matters much. Multiple in a short period compound badly.
The key trigger is formal application. If you have signed something or clicked a button labelled "Apply" rather than "Check eligibility", you have probably triggered a hard search. Reputable lenders make this clear before the search happens.
When each type happens
Some events always trigger a hard search. Others always use soft. A few are mixed depending on the lender. Use this as a quick reference:
| Event | Type | Notes |
|---|---|---|
| Checking your own credit score | Soft | No effect, check daily if you want |
| Eligibility checker on a comparison site | Soft | ClearScore, MoneySupermarket, etc. |
| Insurance quote | Soft | Car, home, life cover quotes |
| Employer background check | Soft | Some financial sector roles |
| Renting a flat | Soft (usually) | Some letting agents use hard, ask first |
| Formal credit card application | Hard | After you click "Apply" |
| Personal loan application | Hard | After you click "Apply" |
| Mortgage application (full, not AIP) | Hard | Agreement in principle is usually soft |
| Mobile phone contract (post-pay) | Hard | Pay-as-you-go does not trigger one |
| Utility account opening | Hard | Some energy and broadband contracts |
| Buy Now Pay Later | Mixed | Klarna soft, Clearpay soft, but FCA rule changes incoming |
Agreement in Principle vs full application
An Agreement in Principle (AIP, also called a Decision in Principle or Mortgage in Principle) typically uses a soft search. Most lenders make this clear. The full mortgage application that follows is a hard search. So you can get an AIP from several lenders without harm, then proceed with the one offering the best deal.
How long each stays on your file
Searches do not stay forever. Both types drop off after 12 months. The key difference is what is visible during that window.
| Search type | On your file | Visible to lenders |
|---|---|---|
| Soft search | 12 months | No, only you can see them |
| Hard search | 12 months | Yes, all 12 months |
| Hard search after 12 months | Removed automatically | Gone |
| Account opened | 6 years | Yes, throughout |
Note the distinction: the search itself drops off after 12 months, but the account you opened (assuming you did) stays for 6 years. So a credit card application creates a hard search (12 months visible) and a credit account (6 years visible).
How hard searches actually affect your score
The score impact depends on how many you have and how recently. The CRAs do not publish exact formulas, but the patterns are well-documented.
Typically 5-25 points. Usually fades within 3-6 months. Rarely the deciding factor in any future application on its own.
Cumulative effect can move you down a score band (e.g. Good to Fair). Lenders may interpret this as financial pressure. Approval rates drop, rates offered tend to be higher.
Many lenders auto-decline applications with this pattern. The signal is "this person is desperately looking for credit and being declined repeatedly". Even with otherwise excellent credit, this can trigger automatic rejection.
The "shotgun" application mistake
Applying to 5 lenders at once because "one of them must say yes" almost guarantees they all say no. Each formal application creates a hard search. By the time the second lender pulls your file, they see the earlier search. By the fifth, you look like someone the market is rejecting. Always use eligibility checkers to filter down to one application.
Mortgage rate-shopping window
One important exception: mortgage rate-shopping is treated more leniently. Multiple mortgage hard searches within a 14-30 day window are typically counted as a single search by most CRAs, recognising that consumers should be able to shop around for a major financial decision. This is informal practice rather than a hard rule, so do not over-rely on it for other credit types.
Eligibility checkers: the smart way to shop
Eligibility checkers are the single biggest credit-shopping innovation of the last decade. They use soft searches to give you a personalised approval likelihood and likely rate, without affecting your score.
Run your details through 3-4 different lenders' or comparison sites' eligibility tools. Most major UK lenders offer this: Nationwide, Santander, NatWest, Tesco, Sainsbury's and Halifax. Comparison sites including MoneySupermarket, GoCompare and Compare the Market show eligibility across multiple lenders at once.
Eligibility checkers give you a personal APR estimate based on your real credit profile. This is more useful than the advertised representative APR, which only 51% of approved applicants actually receive. See our APR vs interest rate guide.
Pick the lender showing both high approval likelihood and best personal rate. Apply to that one only. The hard search creates a ~5-25 point dip but the application itself succeeds, the credit account that follows actually helps your file long-term.
Make sure it really is a soft search
Reputable eligibility checkers explicitly state "soft search" or "no impact on your credit score". If a tool does not say so, treat it as a hard search. Some smaller lenders or comparison sites use hard searches even for initial enquiries. When in doubt, look for the FCA registration number and check the FCA Financial Services Register.
Unrecognised hard searches and fraud
If you check your credit file and see a hard search you do not recognise, take it seriously. It can mean someone has applied for credit in your name. Identity fraud usually leaves this footprint somewhere.
The unrecognised search may only appear on one of Experian, Equifax or TransUnion depending on which CRA the lender used. Look for unfamiliar lenders or addresses too.
The CRA report shows which lender ran the search. Phone or email them, give your name and date of birth, ask whether you have an account or pending application with them. They will be able to confirm whether the search was legitimate (perhaps a quote you forgot) or fraud-related.
If fraud is confirmed (or even suspected), apply to CIFAS Protective Registration for £30/2 years. This adds a flag to your credit file that requires extra ID checks before any future credit can be approved in your name. Lenders will see the flag and take additional precautions.
Report identity fraud to Action Fraud on 0300 123 2040 or online. They issue a crime reference number you can give to lenders, the CRAs and your bank. The CRAs can then add a Notice of Correction to your file explaining the fraudulent activity.
Lenders must remove fraudulent searches
Once fraud is confirmed, the lender and the CRA must remove the fraudulent hard search from your file. Your score should return to its pre-fraud level. Keep all written communication, screenshots and the Action Fraud crime reference. If a CRA refuses to remove a confirmed fraudulent entry, escalate to the Information Commissioner's Office at ico.org.uk.
How to manage searches before a big application
If you are planning a major borrowing decision (mortgage, car finance, large personal loan), set yourself up for success in the months before:
No new credit cards, no shop credit "0% finance" deals, no mobile phone upgrades that include a contract. Each is a hard search visible for 12 months. The fewer recent searches when you apply, the cleaner your file looks.
Sign up free at ClearScore (Equifax data), Credit Karma (TransUnion data) and Experian's free service. Check each report for unrecognised searches, account errors and dispute anything wrong. Disputes take ~28 days to resolve.
Use comparison-site eligibility tools to identify your top 1-2 lenders. Soft searches at this stage do nothing to your score. You will know your likely personal APR before formally applying.
Submit one formal application to the lender most likely to approve at the best rate. The single hard search is worth it for the actual borrowing. Multiple "just in case" applications usually backfire.
The whole point: shop without footprints
Soft searches let you compare every UK credit option without leaving a trace any lender can see. Hard searches happen only when you formally apply. Use 3-4 eligibility checkers, pick the best one, apply to that one. Your credit score stays intact, you still get the best available rate. The system is designed to let you do this, most people just do not realise.