Can Part-Time and Zero-Hour Workers Get Sick Notes and SSP?

If you work part-time or on a zero-hour contract, it can be hard to tell where you stand when you are ill. A lot of people assume sick notes and Statutory Sick Pay are only for full-time staff with standard contracts. That is not how the rules work.

In the UK, part-time workers can still need a fit note if they are off sick long enough, and some zero-hour workers can also qualify for Statutory Sick Pay. The real questions are about how long the sickness lasts, how your employment status is treated for SSP purposes, and whether you meet the current rules.

This is especially important now because the SSP rules changed on 6 April 2026. A lot of older articles still repeat the old earnings threshold and waiting-day rules, so they are now outdated.

Quick answer

Part-time workers can need a fit note in the same way as full-time workers if they are off sick for more than 7 days in a row. Zero-hour workers can also need a fit note if their health affects their ability to work for more than 7 days. The document rule is based on the length of the sickness period, not on whether the person works fixed hours.

SSP is not limited to full-time staff. Part-time workers can qualify, and zero-hour, casual, and agency workers may also qualify if they are treated as employees for SSP purposes and meet the current rules. Since 6 April 2026, SSP is available regardless of earnings and is paid from the first full day of sickness absence for eligible workers.

Do part-time workers need a sick note?

Yes, part-time workers follow the same basic fit note timetable as everyone else. If you are off sick for more than 7 calendar days, your employer can ask for a fit note. Those 7 days include weekends and other days you were not due to work.

That means someone who only works two or three shifts a week can still cross the 7 day threshold in the normal way. The rule is about how long the illness lasts, not how many shifts were actually missed. If the sickness goes beyond 7 days, part-time status does not change the evidence rule.

Part-time workers also have a broader protection in UK employment law. They should not be treated less favourably than comparable full-time workers just because they are part-time. That does not mean everything is identical in practice, because some rights can be applied on a pro rata basis, but it does mean an employer should not invent a harsher sickness rule simply because someone works fewer hours.

What about zero-hour workers?

Zero-hour workers are often told they have no sickness rights because their hours are not guaranteed. That is too simplistic. A zero-hour contract does not automatically block someone from getting a fit note or from qualifying for SSP.

A fit note is medical evidence about your fitness for work. If your health affects your ability to work for more than 7 days, the question becomes whether a clinician can certify that after assessment, not whether the rota was fixed. On the evidence side, the same 7 day rule still applies.

SSP is more technical. The official guidance says all employees and some groups of workers can qualify as long as they meet the conditions. For zero-hour, casual, and short-term contracts, the question is whether the person is classed as an employee for SSP and whether the ongoing working relationship fits the rules. Contract labels matter less than the real employment arrangement.

How SSP works now

This is where older online content becomes risky. Since 6 April 2026, SSP is available to eligible employees regardless of earnings. The old lower earnings threshold has been removed. SSP is also now paid from the first full day of sickness absence rather than starting only after waiting days.

For the 2026 to 2027 period, the official rate is 80% of average weekly earnings or the flat weekly rate of £123.25, whichever is lower. That matters particularly for lower-paid, part-time, and variable-hours workers because the old system often excluded people who earned below the previous threshold.

The key point is that part-time status by itself does not remove SSP rights, and zero-hour status does not automatically do so either. The employer still has to assess entitlement under the current rules rather than falling back on outdated assumptions.

• part-time workers can qualify for SSP if the current conditions are met
• zero-hour, casual, and short-term workers may qualify if they are treated as employees for SSP purposes
• agency workers may also qualify depending on the arrangement and who the employer is for SSP purposes
• qualifying pay is worked out using average weekly earnings rather than a simple guess based on one shift

The 7 day rule still matters

Even with the 2026 SSP changes, the basic fit note evidence rule remains familiar. Workers usually self-certify for the first 7 days of sickness. Only after that point does the fit note issue normally arise.

This matters because some employers wrongly assume irregular workers must provide a doctor’s note immediately. That is not the ordinary rule. If the illness lasts longer than 7 days, then a fit note may be needed. Before that, the employer should usually manage the absence under normal reporting and self-certification rules.

If you need the detail behind that first-week position, our guide to self-certification for the first 7 days explains what counts and why weekends still matter.

Agency workers and casual workers

Agency workers are not automatically excluded from SSP. The official guidance says agency workers may qualify. In practice, the important question is usually which organisation counts as the employer for SSP and who should receive the fit note or SSP-related evidence.

For casual workers, the same principle applies. The name of the contract is not the whole story. What matters is the real relationship, whether work has been done, and whether the person is treated as an employee for SSP purposes. This is why blanket statements such as "casual staff do not get sick pay" are often too blunt to be reliable.

How this works in real life

These rules often make more sense when you picture real situations. A part-time teaching assistant who works three days a week and is off with flu for 10 calendar days can still cross the normal threshold for medical evidence even though only a few working days were missed. A zero-hour hospitality worker with regular weekly shifts may still be able to show an ongoing working relationship for SSP purposes even though the contract does not guarantee hours on paper.

An agency warehouse worker may need to ask whether the agency or the host business is the correct point of contact for SSP and sickness evidence. A casual worker whose shifts are arranged by message may need to keep more careful records than a full-time office employee, but that does not mean the rights disappear. The principle is the same in each example: look at the real working relationship, not just the label attached to it.

That practical lens matters because many workers assume irregular arrangements leave them outside the system altogether. In reality, the harder part is often proving the facts clearly, not showing that the rules exist.

Where fit notes and SSP sometimes get mixed up

A fit note and SSP are related, but they are not identical. A fit note is medical evidence about your fitness for work. SSP is about whether the employer must pay statutory sick pay under the current rules. Some workers can need a fit note but still end up in a dispute about SSP if the employer contests employment status or average earnings calculations.

That is why it helps to separate the questions. First, does the illness now require medical evidence because it has lasted more than 7 days? Second, are you someone the employer should be treating as eligible for SSP under the current 2026 rules? Keeping those questions separate often makes the conversation easier to manage.

What employers often get wrong

Employers commonly make three mistakes here. First, they assume part-time workers have weaker sickness rights. Second, they assume zero-hour workers can never qualify for SSP. Third, they demand a fit note too early. None of those positions matches the current guidance.

If that happens, it helps to ask the employer to explain their position in writing. A calm paper trail is usually more useful than a verbal argument. Asking which part of the current SSP or fit note guidance they are relying on often forces the discussion back onto the real rules.

If the wider question is simply whether you need formal evidence for work absence at all, our article on do I need a sick note for work helps separate short absences from the situations where a fit note genuinely becomes necessary.

What workers should do in practice

If you are a part-time, zero-hour, or agency worker and you are unwell, the practical steps matter as much as the legal ones. Report the sickness in line with your employer’s usual process, keep copies of messages, and make sure you can show your recent work pattern if SSP becomes disputed.

1. tell the employer or agency you are unwell within the normal reporting deadline
2. keep copies of rotas, payslips, and messages confirming shifts or work patterns
3. self-certify for the first 7 days where appropriate
4. get a fit note if the health problem affects work for more than 7 days
5. ask who should receive the note if you are an agency worker
6. if SSP is refused, ask for the reason in writing

If you need private documentation following clinical review for work absence, you can also read about a work sick note. That can help in some situations, but SSP entitlement itself still depends on the statutory rules and your employment status.

Why records matter when hours vary

Workers with irregular hours are often at a disadvantage because the facts of the working relationship are less obvious on paper. Rotas may change week to week, shifts may be arranged by message, and some workers assume that because their hours are not fixed, they cannot prove enough to support an SSP claim. That is often wrong.

A good paper trail can make a major difference. Payslips, rota screenshots, shift confirmations, and agency messages can all help show that a real working pattern exists. For workers with variable hours, that evidence is often what turns a vague dispute into a clear entitlement discussion.

Why this topic is often misunderstood online

Many search results on this topic still reflect the pre-April 2026 SSP rules or assume a standard full-time employment model. That makes the guidance feel harsher than it really is for people with irregular hours. The modern position is more inclusive, but only if employers and workers are actually looking at the current rules rather than repeating old thresholds and waiting days.

That is why part-time and zero-hour workers should be especially careful about relying on older forum answers, old payroll templates, or generic workplace myths. The rules have moved, and the practical advice needs to move with them.

If you need work absence documentation after clinical review, you can start by reading about a work sick note and then compare that with your employer’s evidence requirements.

Frequently Asked Questions

Can a zero-hour worker get a sick note?

Yes. A zero-hour worker can still obtain a fit note if their health affects their ability to work for more than 7 days. The harder question is usually SSP entitlement, not whether medical evidence can be issued.

Can part-time workers get Statutory Sick Pay?

Yes. Part-time workers can qualify for SSP if they meet the current rules. Part-time hours do not remove sickness rights by themselves.

Does a part-time worker need a fit note sooner?

No. The normal 7 day rule still applies. A fit note is usually only needed when the sickness lasts more than 7 consecutive days.

Do zero-hour contracts mean no SSP?

Not necessarily. Zero-hour status does not automatically block SSP. Eligibility depends on whether the worker is treated as an employee for SSP purposes and meets the current rules.

What if an employer says casual workers have no sickness rights?

Ask for the reason in writing and check the current GOV.UK SSP guidance. Contract labels alone do not decide entitlement.

Need a medical certificate?

If you need signed medical evidence for work, study, or administrative purposes, you can request a private medical certificate online from a GMC-registered doctor, usually issued within 2 hours during business hours. See the one-off pricing and how private medical certificates work before you start.