Wrongful dismissal is not the same claim as unfair dismissal, and confusing the two costs UK employers real money. Wrongful dismissal is a breach of contract claim. It asks one question: did you end the contract on the terms the contract sets? Unfair dismissal is a statutory claim under the Employment Rights Act 1996. It asks a different question: was your reason fair, and was your process fair? Two claims, two tests, two sets of risk. This guide walks through the difference, where employers slip, and what each mistake costs. It covers Great Britain; Northern Ireland has its own employment law and some rules, including the unfair dismissal qualifying period, differ there. 

What wrongful dismissal means 

A breach of contract, not a fairness test 

The wrongful dismissal meaning is narrower than the name suggests. A dismissal is wrongful when the employer ends the contract in breach of its terms. In most cases that means one thing: notice. The employee was dismissed without the notice the contract promised, without the statutory minimum, or without a lawful payment in lieu. 

The statutory floor is set by law and sits underneath every contract. ACAS sets out the schedule: one week of notice after one month of service, then one week per full year from two years to twelve, capped at twelve weeks. Your contract can promise more than the floor. It can never give less. Where the contract gives more, the longer figure is the one you owe. 

That is the whole test. Not the reason for dismissal. Not the quality of your process. Only the contract, and whether you honoured it on the way out. 

Why a justified dismissal can still be wrongful 

This is the part that surprises owners. You can have a solid reason to dismiss, run a tidy process, and still commit a breach of contract dismissal. It happens when the exit skips the notice the contract requires. 

Picture a manager caught in a heated argument with a colleague. You investigate, hold a hearing, and decide to dismiss. The conduct is serious. It is probably not gross misconduct. If you dismiss on the spot without notice or payment in lieu, the dismissal itself may be fair and the missing notice is still a breach. The employee has a wrongful dismissal claim for the value of that notice, whatever the tribunal thinks of your reasons. 

The reverse is also true. You can pay full notice and still face an unfair dismissal claim if the reason or process fails the statutory test. Paying someone off does not buy fairness. The two claims live on separate tracks. 

Where constructive dismissal fits, and where it does not 

One neighbouring term causes regular confusion, so it is worth separating early. Constructive dismissal is not a third variety of the same thing. It describes how the employment ended: the employee resigned in response to a serious breach by the employer and the law treats that resignation as a dismissal. What follows from it can be an unfair dismissal claim, a wrongful dismissal claim, or both. So constructive dismissal answers "was there a dismissal at all?", while wrongful and unfair answer "what was wrong with it?". This article stays with the second question. 

Wrongful dismissal vs unfair dismissal: two different claims 

Two tests from two sources of law 

Wrongful dismissal comes from the common law of contract. The only measure is what the contract says and what it was worth. 

Unfair dismissal comes from statute. Section 98 of the Employment Rights Act 1996 allows only five potentially fair reasons: capability, conduct, redundancy, statutory illegality, or some other substantial reason. A dismissal that fits none of the five is unfair regardless of process. SOSR, the fifth category, is the one employers reach for when nothing else fits, and it needs careful handling. Our guide to SOSR dismissal covers when it works and when it collapses. 

The evidence each claim examines is different too. An unfair dismissal case turns on the ACAS Code, the investigation file, the hearing notes and the appeal, judged against the band of reasonable responses. A wrongful dismissal case can ignore nearly all of that. The tribunal reads the contract, checks what notice was given or paid, and does the subtraction. That is why an employer can win one claim and lose the other on the same facts, in the same hearing, on the same day. 

The comparison in one view: 

The qualifying-service difference that catches employers out 

Here is the trap most owners never see. Wrongful dismissal has no qualifying period. An employee dismissed in week one can bring a claim, because the contract was live from day one. 

Ordinary unfair dismissal is different. GOV.UK confirms the qualifying period is usually two years, and that from 1 January 2027 most employees will be able to claim after six months. The change comes from the Employment Rights Act 2025. Many employers treat that service threshold as a shield for every short-service exit. It has never been one. It does not block discrimination claims, automatically unfair reasons, or wrongful dismissal. 

So where does the short-service exposure hide? In your own paperwork. A generous contractual notice clause. A disciplinary procedure written into the contract and then skipped. An enhanced notice promise made at offer stage to win a candidate. Each one converts a "safe" early dismissal into a live breach of contract claim. The exposure was signed before the employee ever started, and the two-year rule never touched it. From January 2027 the statutory shield shrinks too, so the habit of relying on it needs to end this year, not next. 

Where each claim is heard, and whether both can run at once 

A wrongful dismissal claim can be brought in the employment tribunal or in the civil courts. The routes differ in ways that matter. 

In the tribunal, contract claims are capped. The cap is £25,000 per contract, set by the Employment Tribunals Extension of Jurisdiction (England and Wales) Order 1994; the parallel Scottish Order carries the same cap. The tribunal route also runs on short deadlines. ACAS states the claimant must notify ACAS for early conciliation within the time limit, usually three months minus one day. The Employment Rights Act 2025 extends most tribunal time limits to six months from October 2026, but breach of contract claims are excluded, so the three-month window still applies to a wrongful dismissal claim in the tribunal. 

The court route is slower and heavier, and it removes both limits. A breach of contract action in the county court or High Court is uncapped, and the Limitation Act 1980 allows six years in England and Wales to bring it. In Scotland the equivalent limit is five years. For a senior employee on a twelve-month notice clause, the difference between a capped tribunal claim and an uncapped court claim is the difference between an annoyance and a six-figure problem. 

Can an employee bring wrongful and unfair dismissal together? Yes, where they qualify for both. The claims sit side by side at tribunal, one testing the contract and one testing fairness. There is no double recovery for the same loss, and each claim can succeed or fail on its own. Defending the pair costs more than defending either alone, and our breakdown of employment tribunal costs shows what that means in fees and management time. 

How employers end up facing a wrongful dismissal claim 

Dismissing without proper notice 

The plain vanilla version. The employer dismisses, pays to the end of the week, and moves on. The contract said one month. The gap between what was paid and what was promised is the claim, ready-made. No tribunal argument about fairness is needed, because fairness is not the question. 

The fix is arithmetic, not law. Before any dismissal, confirm two numbers: the statutory minimum for that employee's service, and the contractual notice figure. Pay the longer. Add accrued holiday, which is owed separately on termination. 

Getting gross misconduct and summary dismissal wrong 

Summary dismissal means dismissal without notice or payment in lieu. GOV.UK describes it as usually reserved for gross misconduct, with theft, fraud and violence as the classic examples. In contract terms, the employee's conduct has to be so serious it destroys the contract itself. Lawyers call that a repudiatory breach. 

The wrongful dismissal risk lives in the judgement call. Employers stretch "gross misconduct" to cover conduct that is serious, irritating, and not repudiatory. Persistent lateness. A backchat problem. A row that stopped short of anything physical. Dismiss summarily for conduct at that level and the missing notice becomes the claim, even where dismissal with notice would have been open to you. Our guide to insubordination at work looks at exactly this boundary, because defiance is the category owners misjudge most. 

One more wrinkle. The label in your own disciplinary policy does not settle the question. Listing an offence as gross misconduct helps, and a tribunal still asks whether the conduct truly destroyed the contract. 

Skipping a contractual disciplinary procedure 

Some contracts, and some handbooks incorporated into contracts, make the disciplinary procedure a contractual term. Where that is true, the procedure is no longer good practice. It is a promise. Dismissing without following it is a breach, and the claim it creates is separate from any ACAS Code argument in an unfair dismissal case. 

This is the quiet clause that catches growing SMEs. A handbook drafted years ago says the company "will" follow a three-stage process before dismissal. Nobody has read it since. The dismissal skips to stage three, and the skipped stages have a contract value. If your process documents have not been reviewed since they were written, our piece on capability procedure mistakes shows how these promises surface in live cases. 

Botching a payment in lieu of notice 

A payment in lieu of notice, or PILON, is only contractually safe where the contract contains a PILON clause. Pay someone off without one and the payment itself is a technical breach. Most employees take the money and move on, so owners assume the risk is theoretical. 

Here is the practitioner-level point that makes it real. A dismissal in breach of contract can release the employee from their post-termination restrictions. The non-compete, the non-solicitation clause, the promise to leave your customer list alone: all of it can fall away with the breach. The employer who rushes a departing salesperson out the same afternoon, with no PILON clause in the contract, may have handed that person a clean legal route to the customers the covenants existed to protect. The notice money was never the real cost. 

Before you use one, read our guide to PILON payments. The clause costs nothing to include at hiring and cannot be bolted on at the exit. 

What a wrongful dismissal claim can cost 

Compensation is the value of the notice owed 

Wrongful dismissal compensation is a contract calculation, not a punishment. The starting point is what the employee would have earned during the notice period they should have received. Salary, then everything else the contract promised for that period: pension contributions, commission that would have been earned, a car allowance, private health cover. Long notice periods and benefit-heavy packages drive the number up fast. 

Two things pull it down. The employee must mitigate, which means making reasonable efforts to find new work, and earnings from a new job during the notional notice period reduce the claim. And there is no award for hurt feelings or for the manner of dismissal. The claim is cold arithmetic on the contract's value. 

A purely illustrative example shows the shape of it. An operations manager on £52,000 has a three-month contractual notice clause, employer pension contributions and a car allowance. Dismissed with one week of pay instead of three months, the claim is roughly eleven weeks of salary plus eleven weeks of those benefits, less anything earned elsewhere in that window. No fairness argument features anywhere in the calculation. The numbers here are invented for illustration only. For a real exit, run the figures on the actual contract before the decision, not after. 

That is also why the distinction in this article matters commercially. Unfair dismissal compensation runs on a different statutory basis, with a basic award and a compensatory award, and the sums move differently. Our companion piece on unfair dismissal compensation covers that side of the ledger. 

The cap, the courts, and the six-year tail 

For most SME employees on four to twelve weeks of notice, the £25,000 tribunal cap is not a live constraint and the tribunal is where the claim will land. For senior hires it flips. A director on six or twelve months of notice, with benefits, can blow through the cap, and the uncapped court route with its six-year limitation period becomes the rational choice for them. 

The six-year tail deserves a moment. A tribunal claim arrives within months, while a contract claim in the courts can surface years after the exit, when memories have faded and the file is thin. The defence rests entirely on documents from the time: the contract, the dismissal letter, the calculation of what was paid. If those are clean, the claim dies quickly. If they are missing, you are reconstructing a dismissal from memory, in litigation, on your own money. 

How to reduce your wrongful dismissal risk 

Read the contract before you dismiss, not after 

Every wrongful dismissal claim is written into a document you already hold. So the single highest-value habit is reading the employee's actual contract before the dismissal decision, not after the solicitor's letter. Confirm the notice clause. Confirm whether a PILON clause exists. Confirm whether the disciplinary procedure is contractual or discretionary. Confirm what happens to commission and benefits during notice. Ten minutes of reading beats months of correspondence. 

Do the same at the front door. Offer letters that promise enhanced notice, handbooks that promise procedures, template contracts copied from a business you no longer resemble: each is a future claim being drafted in advance. Review them while nothing is wrong. 

When summary dismissal is safe, and when it is a trap 

Reserve summary dismissal for conduct that genuinely destroys the contract. Theft, fraud, violence, serious safety breaches, and conduct at that level. Investigate before deciding, suspend on full pay if you need space, and write down what you found and why it met the threshold. If you find yourself arguing that a pattern of smaller failings adds up to gross misconduct, slow down. Patterns usually point to a conduct or capability process with notice at the end, not an instant exit. 

And remember what summary dismissal never removes: the duty to run a fair process where the employee qualifies for unfair dismissal rights. Speed is not a defence to either claim. A botched on-the-spot exit routinely produces both at once: wrongful dismissal for the unpaid notice, unfair dismissal for the absent procedure. From January 2027, with the qualifying period at six months, the population of employees who can test your process grows sharply. 

Getting notice, holiday and final pay right 

Most wrongful dismissal exposure dies at the payroll stage, so treat the final payment as a checklist rather than a guess. Pay the longer of statutory and contractual notice, or provide a payment in lieu under a valid clause. Pay accrued untaken holiday, which is a separate legal entitlement and never folded into notice. Honour benefits for the notice period: pension contributions, allowances, and commission the contract would have delivered. Where you want the person gone and the contract allows it, garden leave keeps the contract alive and the covenants intact while they serve notice at home. Each of these is cheaper than the claim it prevents, and every figure comes straight from documents you already hold. 

The three dismissal decisions you should never self-serve 

Working HR professionals know where confident owners do the most damage on their own. Three documents carry the bulk of it: 

1. Dismissal outcome letters, because the stated reason fixes your legal position permanently. 
2. Appeal outcomes, because they are the last chance to repair a defect and the easiest place to create a new one. 
3. Grievance appeals that overlap a live dismissal, because the two files contradict each other more often than not. 

None of these is about writing skill. Each is a judgement call where the wrong instinct feels natural and the cost surfaces a year later. Take advice before these three leave the building, even if you handle everything else in-house. 

Is a dismissal decision sitting on your desk right now? 

If you are about to dismiss and the notice position is unclear, or a letter mentioning wrongful dismissal has already landed, The HR Doctor can help you work out where you stand before it hardens into a claim. We work directly with SME owners and managers, not through layers of HR process. Book a free 30-minute discovery call: https://assist.hrdr.co.uk/appointment