An unfair dismissal award calculator gives you a single figure and none of the working. For an employer trying to price the risk of a dismissal, or to sense-check a settlement demand, the working is the part that matters. The total is built from two separate awards, calculated in two different ways, adjusted by rules that can double the number or cut it to almost nothing. 

This article walks through those mechanics with the figures that apply in England, Wales and Scotland from 6 April 2026. Northern Ireland sets its own limits and rules. It deals with the money only. Whether a dismissal qualifies as unfair in the first place is a different question, and it is covered in our guide to when dismissing someone becomes an unfair dismissal. Nothing here is legal advice. It is the arithmetic every SME owner should understand before a schedule of loss lands on their desk. 

What an unfair dismissal award calculator is actually doing 

Every unfair dismissal payout at an employment tribunal is the sum of two parts. 

The first is the basic award. This is a fixed formula, built from age, length of service and gross weekly pay. It compensates for the loss of the job itself. Fault, hurt feelings and future prospects play no part in it. 

The second is the compensatory award. This is not a formula. It is the tribunal's assessment of what the employee actually lost because of the dismissal, judged by what is just and equitable. It covers lost earnings, lost benefits and lost statutory protection, and it carries a statutory cap. 

Any calculator worth using is running those two calculations and adding them together. The problem is what a calculator cannot see: the deductions, uplifts and caps that tribunals apply case by case. Those adjustments move real awards far more than the headline formula does. Both are covered below. 

How to calculate the basic award 

The basic award is the same calculation as statutory redundancy pay. If you have ever used our Redundancy Pay Calculator, you already know the method. 

Count backwards from the dismissal date, one complete year of service at a time, up to a maximum of 20 years. Each year earns a multiple of a week's pay based on the employee's age during that year: 

1. Half a week's pay for each full year worked under age 22. 
2. One week's pay for each full year worked between 22 and 40. 
3. One and a half weeks' pay for each full year worked at 41 or over. 

A week's pay is gross, but it is capped. From 6 April 2026 the cap is £751 per week, set by the Employment Rights (Increase of Limits) Order 2026. The same order fixes every limit in the table below. Anyone earning above £39,052 a year hits that cap, which is why long-serving senior staff often find the basic award smaller than they expected. 

The maximum basic award is 30 weeks' pay at the capped rate: 20 years, all at the 1.5 multiplier. From 6 April 2026 that is £22,530, the same ceiling GOV.UK publishes for statutory redundancy pay. 

A worked example 

Take an employee dismissed at 45 with 12 complete years of service, earning £800 gross a week. Their weekly pay is capped at £751. Four of their service years fall at age 41 or over, earning 1.5 weeks each. The other eight years fall between 22 and 40, earning one week each. That is 14 weeks multiplied by £751: a basic award of £10,514. 

What changes the basic award 

Three adjustments come up repeatedly in SME cases. 

First, a statutory redundancy payment already made wipes out the basic award pound for pound. The two compensate for the same loss, so an employee cannot recover it twice. 

Second, the tribunal can reduce the basic award for conduct before the dismissal, even conduct discovered afterwards. The reduction can reach 100 percent. 

Third, an employee who unreasonably refuses an offer of reinstatement can lose some or all of the basic award. Beyond that, the basic award is safe money for the claimant. There is no mitigation duty on it. It is payable in full even if the employee starts a better job the following Monday. 

Finally, a small set of automatically unfair reasons carries a minimum basic award of £9,157 from 6 April 2026. These include dismissal for health and safety representative duties, pension trustee duties, employee representative duties and trade union membership or activities. Dismiss for one of those reasons and the floor applies regardless of service length. 

The April 2026 figures at a glance 

These limits apply where the effective date of termination falls on or after 6 April 2026. Dismissals before that date use the previous year's figures. 

The compensatory award: where the real money sits 

The compensatory award for unfair dismissal is governed by section 123 of the Employment Rights Act 1996, with the cap set by section 124. The tribunal awards what it considers just and equitable, based on the loss the employee suffered because of the dismissal. 

In practice, a schedule of loss builds the claim from five heads: 

1. Net earnings lost from dismissal to the hearing date, less anything earned elsewhere. 
2. Estimated future loss, from the hearing until the employee is expected to find equivalent work. 
3. Lost benefits: employer pension contributions, private health cover, a car allowance. 
4. Loss of statutory rights, a modest conventional sum reflecting the service needed to rebuild unfair dismissal protection: two years today, dropping to six months from 1 January 2027 under the Employment Rights Act 2025. 
5. Reasonable expenses of looking for new work. 

Notice pay sits outside this. Unpaid notice is a contractual debt, claimed as wrongful dismissal, and paid notice is deducted from the loss period. Our guide to redundancy notice and notice pay explains how notice entitlements are built. 

The employee also has a duty to mitigate. They must make reasonable efforts to find new work, and a tribunal will cut the award where they have not. Job search evidence is one of the first things to test when a schedule of loss looks inflated. 

The cap most calculators get wrong 

The compensatory award is capped at the lower of two figures: £123,543, or 52 weeks' gross pay. 

Here is the practitioner point most SME owners miss. For nearly every SME employee, the 52-week limb bites first, and the headline cap is irrelevant. An employee on £32,000 has a compensatory ceiling of £32,000, not £123,543. Quoting the six-figure cap in a boardroom conversation overstates the ordinary unfair dismissal risk by a factor of three or four for a typical salary. The realistic worst case for the compensatory award is one year's gross pay, plus the basic award on top. 

Two developments change that picture. Dismissals for whistleblowing or health and safety reasons are not capped at all. And under the Employment Rights Act 2025, the statutory cap on the ordinary compensatory award is due to be removed for dismissals from 1 January 2027. From that date the 52-week comfort blanket goes. The mechanics in this article stay the same. The ceiling does not. 

A worked example, start to finish 

Stay with the employee from the basic award example: 45 years old, 12 years' service, £800 gross a week, which is £41,600 a year. Assume they were dismissed with no meaningful process and found comparable work after six months. 

Their schedule of loss might claim six months' net pay at roughly £2,600 a month, so £15,600. Add six months of lost employer pension contributions at 5 percent of salary, around £1,040. Add the conventional £500 for loss of statutory rights. Claimed loss: about £17,100. 

Now the adjustments. Say the tribunal finds a 25 percent chance a fair process would have produced the same dismissal, cutting the figure to about £12,800. Then it applies a 15 percent ACAS uplift because there was no appeal, lifting it to roughly £14,700. The cap does not bite, because 52 weeks' gross pay is £41,600. Add the £10,514 basic award and the total lands near £25,200. 

Run the same case with a clean process and the number is £10,514 plus notice. Run it with no process at all and no Polkey argument, and it comes in just under £32,000. The formula did not change once. The process did. 

The adjustments that move the number 

Tribunals apply a sequence of adjustments after assessing the loss. These shift real awards far more than the base formula, and they are where employer conduct gets priced. 

A Polkey deduction reduces the compensatory award by the percentage chance the employee would have been fairly dismissed anyway, had a proper process been followed. A tribunal that finds a dismissal procedurally unfair, but concludes a fair process would probably have reached the same result, can cut the award by 50, 70, even 100 percent. 

Contributory fault works alongside it. Where the employee's own blameworthy conduct contributed to the dismissal, both awards can be reduced, again by up to 100 percent. 

Then comes the ACAS Code of Practice on disciplinary and grievance procedures. An unreasonable failure by the employer to follow the Code lets the tribunal increase the compensatory award by up to 25 percent. An unreasonable failure by the employee cuts it by up to 25 percent. For an employer, skipping the appeal stage is the most common way to hand over that uplift. 

One more point worth knowing: the statutory cap is applied last, after every other adjustment. An uplift calculated on a large loss can vanish entirely once the cap comes down on top. Running the sequence in the right order is the difference between an accurate settlement valuation and a guess. 

Reinstatement, re-engagement and the additional award 

Compensation is the usual remedy, but it is not the only one. A successful claimant can ask the tribunal to order reinstatement to the old job, or re-engagement in a comparable one. Orders are rare in practice, and rarer still in small businesses where the relationship has broken down. 

The quantum risk sits in refusing one. An employer who fails to comply with a reinstatement or re-engagement order, without being able to show compliance was not practicable, pays an additional award of between 26 and 52 weeks' pay on top of everything else. The week's pay is capped at the same £751, so from 6 April 2026 the additional award runs from £19,526 to £39,052. If an order ever lands on your desk, price that range before deciding the employee is not coming back. 

A £548 basic award inside an £89,986 payout 

The split between the two awards, and the danger of reading either in isolation, is visible in a real judgment: Ms K Flanagan v A Jury (T/a Envy), case numbers 3306368/2020 and 3303236/2022, decided in December 2024 with an amended remedy judgment published in January 2025. 

The claimant was a hairdresser at a small salon. The tribunal found she had been constructively unfairly dismissed, and upheld complaints of pregnancy discrimination and victimisation. On the unfair dismissal claim itself, the numbers were tiny. The basic award was £548.07. The compensatory award was nil, because her financial losses were compensated under the discrimination complaints instead. 

Then the tribunal built the rest. Past financial losses of £27,663.42, with £4,466.22 in interest. Injury to feelings of £25,000, plus £5,000 in aggravated damages, with a further £12,028.24 of interest. A 5 percent uplift of £2,883.17 for the employer's unreasonable failure to follow the ACAS Code. After grossing up for tax and adding £500 for loss of statutory rights, the grand total was £89,986.40. 

Three lessons for any SME owner. Discrimination compensation has no cap, no 52-week limb and includes injury to feelings, which is why the current rates matter, and we cover them in new compensation rates for discrimination cases. The ACAS uplift is a percentage of the compensatory sums awarded, so it scales with the damage. And a claim that looks small through an unfair dismissal lens can be a five-figure claim through a discrimination one. The employer here ran a disciplinary process against a pregnant employee and paid for every procedural failure in the final number. 

Using the numbers: budgeting a claim and reading a schedule of loss 

When a claim or a pre-claim letter arrives, run the two calculations yourself before anyone else prices the case for you. 

The basic award takes five minutes: age, service, capped week's pay. It is close to indisputable, so treat it as the fixed floor of any settlement conversation. 

The compensatory award is where schedules of loss get ambitious. Check the claimed loss period against the local job market for the role. Ask for mitigation evidence. Apply the 52-week gross pay ceiling for pre-2027 dismissals. Then stress-test the adjustments in both directions: what a Polkey argument realistically saves you, and what an ACAS uplift realistically adds, given the process you actually ran and can actually evidence. 

Remember that the award is only one line in the total cost of defending a claim. Legal fees and management time usually exceed it. Our breakdown of what an employment tribunal costs a UK employer puts the full picture together. 

A last practical note. The figures in this article change every April, and the uprating order lands in March. If you are reading this after April 2027, check the current Increase of Limits Order before relying on any number here. 

Find the gaps before a tribunal prices them for you 

Every adjustment in this article is really a question about your paperwork. Polkey turns on whether a fair process existed. The ACAS uplift turns on whether you followed the Code and can prove it. Contributory fault turns on what you documented at the time. 

The free HR Health Check takes under a minute and lets you know where your people processes stand, with a Red, Amber or Green rating across the areas a tribunal would test. If a dismissal is on your horizon, it is the fastest way to find out whether your process would hold before the numbers above become your numbers.