Suing a bank: negligence, liability and compensation

If you’ve lost money because a bank got something wrong, you may have a claim, but most people don’t need to start court proceedings. The fastest route is usually: complain in writing, get a final response, then escalate to the Financial Ombudsman Service (free). Court is mainly for high-value or complex disputes. This guide explains your rights and the latest APP scam reimbursement rules in plain English. If the bank refuses to resolve the issue or the dispute involves significant financial loss, speaking with a consumer rights solicitor can help you protect your position and recover your money more effectively.

Quick answer: Can you sue a bank for negligence in the UK?

You can, but in many bank negligence cases the practical win is a complaint + ombudsman decision, not court.

• Unauthorised payment: the bank must refund “as soon as practicable” and by the end of the next business day once aware (limited fraud-suspicion exception) under Payment Services Regulations 2017 (reg 76).
• APP scam (authorised but tricked): court claims are tougher after Philipp v Barclays [2023] UKSC 25, but you may still qualify for PSR mandatory reimbursement (from 7 Oct 2024, Faster Payments/CHAPS, £85,000 cap, exceptions).
• Best next step (Ombudsman vs court): ask the bank to confirm whether the payment was unauthorised or an APP scam, request its final response, then escalate to the Financial Ombudsman Service within 6 months if needed.

Court deadlines can still run while you’re in the Ombudsman process, don’t ignore them.

If the loss is high or the bank alleges “gross negligence”, speak to a banking & financial services disputes solicitor to assess classification, evidence, deadlines, and the best recovery route before you commit.

Do you have a valid bank negligence claim? (Fast checklist)

Use this to check if your claim is realistic:

• Duty: was there a bank obligation (contract, regulation, complaint-handling standards) that applies to what happened?
• Breach: what exactly should the bank have done (refund by next business day for unauthorised payments under PSR 2017 regulation 76; “reasonable efforts” to recover a misdirected payment under PSR 2017 regulation 90)?
• Causation: can you explain “if the bank had done X, I wouldn’t have lost £Y”?
• Evidence: timeline, screenshots, warnings shown, Confirmation of Payee result, call logs, bank messages, police/fraud reference if relevant.
• Time limits: escalate within 6 months of the bank’s final response to FOS time limits; court claims are usually 6 years, with a possible “date of knowledge” extension under Limitation Act 1980 section 14A.

Reality check: how often bank negligence claims succeed

Most bank negligence claims are won or lost on classification (unauthorised vs APP scam) and evidence quality.

• How often consumers “win” at FOS: the Financial Ombudsman Service received 305,726 complaints in 2024/25 and upheld 34% overall; fraud and scams accounted for 35,416 complaints.
• Why banks are strict on proof: UK Finance’s Annual Fraud Report 2024 (PDF) reports £1,168.4m total fraud losses across 2,967,363 confirmed cases in 2023, including £459.7m APP scam losses. Outcomes often turn on what you can evidence, not what feels “fair”.
• Most common failure points: the bank treats the transaction as authorised, key screenshots/timelines are missing, reporting is delayed (the FCA’s fraudulent payments guidance flags a 13‑month window for unauthorised-payment claims), or the bank says you ignored clear warnings (especially in APP cases under the PSR APP reimbursement protections).

When can you sue a bank for negligence in the UK?

The examples below reflect the highest-intent scenarios where suing a bank for negligence is most often considered:

• Unauthorised transactions: strongest legal footing because PSR 2017 regulation 76 sets a clear refund-and-restore duty (with limited exceptions).
• Misdirected transfers (wrong sort code/account): the bank may be “not liable” for defective execution if you gave an incorrect unique identifier, but must make “reasonable efforts to recover the funds” under PSR 2017 regulation 90.
• APP scam handling failures: even if the initial payment was authorised, you may argue the bank mishandled recalls, warnings, vulnerability, or reimbursement assessment, often better framed for the Financial Ombudsman Service than court.
• High-value / complex disputes (e.g., needing disclosure): court can be appropriate, but cost risk is real.

Unauthorised vs authorised payments (APP scams): your rights explained

Correct classification determines your rights:

• Unauthorised payment (not you): the bank must refund and restore the account under PSR 2017 regulation 76, generally by the end of the next business day after it becomes aware.
• APP scam (you authorised it): after Philipp v Barclays (judgment 12 July 2023), the Supreme Court considered whether the Quincecare duty should apply where the customer themselves gave the instruction; that makes “the bank should have stopped me paying” arguments harder in court.

New rules (from 7 Oct 2024):

• In-scope APP scams may be reimbursed within 5 business days (up to 35 if needed).
• £85,000 cap.
• Optional £100 excess (not for vulnerable consumers).
• Refusal only in limited cases (e.g. gross negligence).

What compensation can you claim for bank negligence (including distress)?

Compensation usually includes:

• Financial loss: the disputed sum, plus charges/fees/interest you wouldn’t have paid without the bank’s mistake (overdraft fees, interest, admin fees).
• Interest: typically based on Bank of England base rate + 1% (FOS approach from Jan 2026).
• Distress and inconvenience: the FOS distress/inconvenience guidance says minor issues may justify an apology or “less than £100”; the highest awards for extreme impact go “£5,000 and over”.
• Upper limits (FOS): the FOS compensation limits include £445,000 (for many cases referred on/after 1 April 2025, depending on when the act/omission happened).

Should you complain, go to FOS or sue your bank? (best route, timelines)

For most bank negligence disputes, the best results come from a complaint → FOS → court (only if needed) approach, because it’s faster, cheaper, and evidence-led.

• Step 1 (now): write to the bank, ask it to classify the event as unauthorised vs APP scam, and request its final response letter.
• Step 2 (within weeks): if unresolved, prepare an Ombudsman-ready pack (chronology, evidence bundle, what you want, and why it’s fair).
• Step 3 (deadline): refer to FOS within 6 months of the final response date (calendar months).
• Step 4 (court only if needed): consider court if (a) loss exceeds FOS practical limits for your situation, (b) you need disclosure, or (c) there’s a strategic reason not to accept a FOS award.

How to sue a bank for negligence: step-by-step court procedure (England & Wales)

Court follows a standard process: pre-action letter → claim → defence → mediation/hearing:

• Start a claim using Make a court claim for money (GOV.UK) (online or by post); Scotland and Northern Ireland use different systems.
• If you use Money Claim Online (MCOL), you’ll need Government Gateway registration, a UK address, and a card to pay fees.
• Follow pre-action expectations (letter before claim, time to respond); MCOL warns failure to follow pre-action conduct “could… invalidate your claim” and court staff can’t advise you.
• Consider court mediation, which can be quicker and cheaper than a hearing.

Why bank negligence claims fail (and how to avoid it)

Most failed bank negligence cases collapse on deadlines, classification, and missing proof.

• Waiting too long to report or submit your claim (the FCA highlights a 13‑month window for unauthorised-payment claims).
• Not pinning your argument to the right rule (e.g., quoting PSR regulation 76 when it’s actually an APP scam; or ignoring PSR regulation 90 for misdirected payments).
• Missing the FOS 6‑month deadline after the final response.
• Over-claiming emotional harm without explaining impact; the Ombudsman expects detail about effec  t on your life, and awards depend on severity.

FAQs

Can I sue my bank for negligence in the UK? Yes, but only if you can show a specific breach by the bank that caused a measurable financial loss. In many cases, a formal complaint and Ombudsman route is more practical than court.

How long do I have to take a bank complaint to the Financial Ombudsman? Usually 6 months from the bank’s final response. If you miss it, the Ombudsman will often refuse the case unless there’s a valid exception.

Will my bank refund an authorised push payment (APP) scam? Sometimes. If the payment is covered by the mandatory reimbursement rules, you may be repaid (often up to a cap) unless an exception applies (for example, complicity or serious failure to take required precautions). If it’s outside the rules, outcomes depend heavily on the facts and how the bank handled warnings and recovery steps.

Information is general and may change; get tailored advice on your facts (and deadlines) before acting.

Bank disputes are winnable when you classify the payment correctly, act fast, and document everything. Start with a written complaint, escalate if needed, and only litigate when the numbers justify it. Clear evidence beats anger, and deadlines matter most of all.

Get a clear “yes/no” on your claim

If you’re unsure whether it’s worth pursuing (or which route is safest), speak to a banking/financial disputes solicitor via Qredible’s vetted network to sanity-check liability, evidence, and deadlines before you commit.

NEXT STEPS:

• Lock down + document today: contact your bank immediately, secure your accounts (freeze cards/online banking if needed), and build a one‑page timeline with screenshots, warnings shown, payee details, and all bank communications.
• Submit a written complaint (48 hours): ask the bank to confirm the transaction classification (unauthorised vs APP scam), state the exact £ loss you want repaid, and request a final response in writing.
• Choose your escalation route (on the final response): if unresolved, prepare an “Ombudsman-ready” evidence pack and escalate within 6 months, or, for high losses/complex facts, get a solicitor to sanity‑check prospects, deadlines, and whether court is proportionate.