Can I be disciplined while off sick?

Signed off sick and facing a disciplinary? You have the right to know the allegation and a fair chance to answer it. Today, reply in writing: ask for the allegation, evidence and policy, say what you can manage, and request an adjustment or a different date if needed. Keep a copy.

Is the problem misconduct or genuine sickness?

That distinction determines what the employer should investigate. Being ill is not misbehaviour. But a fit note does not excuse an unrelated breach of workplace rules. Nor does it make every activity outside work suspicious: someone unfit to lift boxes may still be fit to eat at a restaurant, or even do different work elsewhere. Ask what rule was allegedly broken and what evidence supports the allegation.

The Acas Code sets the standards for formal disciplinary proceedings in Great Britain. It also covers poor performance, though employers may use a separate capability procedure. Its 25% tribunal-award adjustment is not an automatic penalty for every ill-health capability dismissal. Northern Ireland has its own procedures, explained below.

How many sick days before disciplinary action?

There is no statutory number. An absence policy might call for a review after three spells in six months, or use a Bradford Factor score that weights repeated short absences. These are employer-set review points, not a licence to punish people automatically. Acas says reaching a trigger should start a conversation about the reasons for absence and support, not automatically start discipline.

A return-to-work conversation should cover whether you are ready to return and what help you need. It is not itself a formal disciplinary hearing. If absence was connected with pregnancy, a disability, treatment, or something at work, explain the connection and ask how it will be recorded. A deliberate failure to notify your employer can be investigated separately; the fact that you were genuinely ill still matters to whether action is reasonable.

What proof and sick pay do you need?

For the first seven calendar days of sickness, including non-working days, you can self-certify. You do not need a fit note, though you must follow the employer’s notification procedure and may be asked for a self-certification form. If you are off for longer, get a fit note; doctors, nurses, occupational therapists, pharmacists and physiotherapists can issue one. Tell your employer if getting it is delayed. A fit note is medical evidence about fitness for work, not a ruling on whether you can attend a meeting.

Since 6 April 2026, Statutory Sick Pay (SSP) has been payable from the first qualifying day, without the old minimum earnings threshold or three waiting days. For 2026–27 the weekly amount is £123.25 or 80% of average weekly earnings, whichever is lower, for up to 28 weeks. Average earnings normally use the eight weeks before the absence; SSP is paid for days you would have worked. You must have started work, be classed as employed for tax purposes and report sickness within your employer’s deadline or within seven days. Contractual sick pay may be higher.

A disciplinary process does not itself cancel SSP. If you remain employed during notice and are ill, entitlement to SSP can continue while its conditions are met, subject to the 28-week maximum; notice pay may follow separate rules. SSP does not keep running after employment ends. If the employer says you do not qualify, ask for written reasons (form SSP1 or a letter/email); contact HMRC’s statutory payment dispute team if you disagree. Statutory holiday continues to accrue during sick leave, and you can take holiday while off sick.

Can the hearing go ahead while you are signed off?

Yes, if you can participate fairly. Tell the employer what prevents you attending and what would help: more time, a shorter meeting with breaks, video instead of travel, or written answers. Medical advice about your ability to take part in this hearing may help. Being unfit for your usual job does not automatically mean you are unable to attend a hearing; equally, a hospital stay or severe symptoms cannot sensibly be ignored.

At a formal GB disciplinary hearing that could result in a warning or other action, workers have a statutory right to request a fellow worker, trade union representative or employed union official as a companion. If that companion cannot attend on the employer’s proposed date, you may propose a reasonable alternative no more than five working days later; the employer must postpone to that date. This is a companion rule, not a five-day limit on postponement for illness. A friend or lawyer is not normally within the statutory categories, though an employer may agree to one or a disability-related adjustment may require additional support.

If you repeatedly cannot or will not attend without good cause, the employer may decide on the available evidence under the Acas Code. A well-evidenced illness can be good cause. Do not simply disappear: give a proposed way to take part and keep a record of your requests.

1. Investigation. The employer checks the allegation rather than treating suspicion or a social-media photograph as proof.
2. Written case. You receive the allegation, possible consequences and normally the written evidence, with time to prepare.
3. Hearing. You can answer the case, present evidence and ask questions, with a companion where the statutory right applies.
4. Decision and appeal. The employer confirms its decision in writing and offers an appeal, preferably before a different manager.

Even alleged gross misconduct, such as proven fraud, requires a fair process before dismissal without notice. In a relevant tribunal claim, unreasonable failure by either side to follow the Acas Code can affect the award by up to 25%, upwards or downwards.

What if the illness is a disability or mental-health condition?

In Great Britain, the Equality Act 2010 protects someone with a physical or mental impairment that has a substantial, long-term effect on ordinary day-to-day activities. Long-term generally means 12 months or more, or likely to last that long. Cancer, HIV and multiple sclerosis are automatically covered. Depression, anxiety, long Covid and neurodivergent conditions may qualify depending on their effects; a diagnosis alone is not the test. The employer’s knowledge, or what it could reasonably have known, matters.

There are two distinct protections. First, the employer must make reasonable adjustments where the duty applies. Depending on the individual case, that may mean excluding some disability-related absences from trigger points, raising a threshold, recording disability leave separately or changing how a hearing is held. It is not an unconditional duty to disregard every absence. Second, section 15 can protect against unfavourable treatment because of something arising from disability, such as absence, unless the employer can justify it as a proportionate means of achieving a legitimate aim. This claim does not require two years’ service.

For example, a person undergoing chemotherapy might hit an attendance trigger. Before issuing a warning, the employer should discuss how treatment affects attendance and whether adjusting the trigger is reasonable. With recurrent depression, it may also need to consider later meeting times or written responses. Pregnancy-related absence raises separate discrimination risks and should not simply be counted as ordinary absence. Neither a fit note nor a label makes the outcome automatic: context and evidence matter.

Tell your employer, in writing, which absence relates to a condition, what effect it has and what change would help. Ask whether occupational health advice would be useful. A formal diagnosis is not always necessary for protection, but clear information helps the employer assess its duties. See our guides to mental health discrimination and reasonable adjustments.

Can you be dismissed for long-term sickness?

Sometimes. An employer should not treat genuine incapacity as fraud. For an ill-health capability dismissal, it should consider current medical evidence, discuss the likely return with you, try appropriate support or adjustments and consider alternatives such as a phased return or suitable role. The effect of your absence on the business matters, but dismissal should be a last resort, with proper notice or pay in lieu where due. Acas explains the distinction; our ill-health dismissal guide covers the full route.

For an ordinary unfair dismissal claim in Great Britain, an employee usually needs two years’ continuous service if the effective termination date is before 1 January 2027. Disability discrimination claims and certain automatically unfair dismissal claims have no two-year qualifying period. A worker who is not an employee cannot normally bring ordinary unfair dismissal proceedings, but can have discrimination protection, the statutory accompaniment right, and SSP if classed as employed for tax purposes. A genuinely self-employed person has no ordinary unfair dismissal or SSP entitlement; discrimination protection for contractors can depend on the working arrangement.

Does Northern Ireland differ?

Yes. The SSP reform applies throughout the UK, but Northern Ireland uses the Disability Discrimination Act 1995, not the Equality Act 2010, for disability protection. Its disciplinary benchmark is the Labour Relations Agency Code, not the Acas Code. A statutory minimum disciplinary and dismissal procedure includes a written statement, meeting, decision and opportunity to appeal; nidirect explains that failure to follow it can make a dismissal automatically unfair where an unfair dismissal claim is available.

Ordinary unfair dismissal normally needs one year’s service in Northern Ireland, and the January 2027 GB reduction does not apply. For an unfair dismissal claim, nidirect still states a three-month Industrial Tribunal limit; the six-month Great Britain extension does not cover NI. Seek advice early from the Labour Relations Agency rather than assuming a GB deadline applies.

What should you do now?

1. Keep reporting sickness. Follow the notification rules, provide self-certification or a fit note when appropriate, and save copies.
2. Ask for the exact allegation. Is it suspected dishonesty, a reporting breach, or genuine absence reaching a review point? Request the policy and the evidence.
3. Explain what you can manage. If a hearing is difficult, propose a new date, remote attendance or written answers; ask a clinician about specific restrictions if needed.
4. Flag any disability connection. Identify affected absences and request a particular adjustment rather than assuming the employer knows.
5. Take a companion and appeal. Request an eligible companion for a formal hearing. Challenge an unfair decision promptly in writing.

If you work in care or health, ask UNISON, GMB or Unite for representation. Retail workers can contact USDAW; hospitality, warehouse and delivery workers can ask Unite or GMB, and couriers can contact IWGB. Citizens Advice and law centres can help if you are not in a union. For suspected labour abuse or exploitation, contact the GLAA; for illegal recruitment fees in care, contact the Employment Agency Standards Inspectorate. Report unsafe work or a work-related health risk to the HSE. If disability discrimination is involved, the Equality and Human Rights Commission provides guidance. If SSP is refused, ask for written reasons and use HMRC’s statutory payment dispute route.

Do not let an internal appeal consume your claim deadline. Notify Acas for early conciliation within the relevant GB limit if you are considering a tribunal claim; timely notification pauses the clock. Different steps apply in Northern Ireland.

What changed in 2026, and what is scheduled?

1. 6 Apr 2026In force: SSP reform

   Day-one payment, no lower earnings floor; the 2026–27 weekly rate is the lower of £123.25 and 80% of average earnings. This applies across the UK.

2. 1 Oct 2026In force: longer GB claim limits

   For most claims where the problem occurs on or after this date, the limit is six months minus a day. For example, a dismissal on 1 October 2026 normally gives a deadline of 31 March 2027, before any early-conciliation adjustment. A dismissal on 30 September normally has the older three-month-minus-one-day limit. Scottish employment-contract tribunal claims switch on 9 November 2026. Applications for interim relief can still have a seven-day deadline.

3. 1 Jan 2027Scheduled: unfair dismissal reform (GB)

   For dismissals from this date, the ordinary unfair dismissal qualifying period is due to fall from two years to six months and the compensatory-award cap is due to go. It is not in force on 1 October 2026 and does not apply in Northern Ireland.