Self-Certification 7 Day Rule UK: How It Works
If you have been off work sick, you generally have seven calendar days where you can self-certify your own absence, with no doctor’s note needed. Here is exactly how the 7-day self-certification rule works, including weekends, day-8 fit notes, and what happens if you are off sick again soon after.
What Is the 7 Day Self-Certification Rule?
The 7-day self-certification rule is the part of UK sickness absence law that lets you confirm your own illness for the first week off work, without getting anything from a doctor. You fill in a short form yourself, usually the SC2 or one your employer provides, and hand it in when you’re back.
It exists because GP surgeries would otherwise be booked out signing off common, short illnesses like colds or a bad stomach bug, rather than seeing patients who need an actual appointment. For anything up to seven days, your own written word is treated as good enough evidence.
The rule applies whether you work full time, part time, or on a zero-hours contract, and it’s the same across England, Scotland, Wales, and Northern Ireland.
Does the 7 Days Include Weekends and Bank Holidays?
Yes. The 7 days are calendar days, not working days, so weekends and bank holidays count towards the total even if you weren’t due to work them. If you go off sick on a Thursday, your seven days run out the following Wednesday, not the following Friday.
This trips a lot of people up, because it feels like the clock should pause when you weren’t scheduled to work anyway. It doesn’t. The rule is about how long you’ve been unwell, not how many shifts you’ve missed.
How Does the 7-Day Rule Work, Day by Day?
Day 1 is your first full day off sick, and the count runs straight through, weekends included, up to and including day 7. Self-certification covers that whole stretch. From day 8 onward, if you’re still unwell, you’ll usually need a fit note from your GP to keep the sick pay evidence going.
Self-certification itself hasn’t changed. You can still confirm up to seven days of illness yourself, without a doctor’s note. What’s changed is only how soon SSP payments can start once you meet the eligibility conditions.
Days 1–7
Covered by self-certification. Fill in the form yourself once you’re back, or while you’re still off if your employer asks for it sooner.
Day 8 onward
A GP fit note is generally needed to continue supporting your Statutory Sick Pay for as long as the absence lasts.
What If I’m Sick for 1, 3, or 7 Days?
Any absence from one day up to seven calendar days falls under self-certification. There’s no minimum length, and some employers ask for the form even after a single day off, though that varies by workplace policy.
Sarah, off for 3 days
Sarah wakes up with a bad cold on a Tuesday and is back at her desk on Friday. She fills in her self-certification form on her first day back, covering Tuesday to Thursday. No GP visit needed at any point.
Tom, off for exactly 7 days
Tom comes down with flu on a Saturday and doesn’t return until the following Friday, seven calendar days later. Because his absence sits right at the seven-day mark, he can still self-certify the whole period. If he’d needed an eighth day off, he’d have needed a fit note to cover that extra day.
What If I’m Sick Again Within 8 Weeks?
If you’re off sick again within 8 weeks (56 days) of a previous absence ending, the two periods can be linked together as one continuous “period of incapacity for work” for Statutory Sick Pay purposes, rather than treated as a fresh, separate absence.
This matters mainly for how your SSP entitlement is tracked over time, since linked periods count towards the same overall claim. You still self-certify each short absence the same way, one form per period off, but it’s worth mentioning the earlier absence to your employer if you think the two might be connected, especially if the second bout follows on quickly from the first.
Fit Notes and the 7-Day Rule
A fit note, sometimes still called a sick note, is different from self-certification because a doctor signs it rather than you. You need one from day 8 of any illness onward, and your employer can’t ask you to self-certify beyond that point instead.
Fit notes can also be issued sooner than day 8 in some cases, for example if your employer’s own policy asks for one for certain types of absence, or if a GP feels it’s appropriate given your circumstances. But as a baseline, the first seven days are always yours to self-certify, whatever else your workplace policy says.
One thing that doesn’t change: even once a fit note is in place, it doesn’t retroactively cancel your self-certification for the first seven days. The two documents cover different stretches of the same absence.
How Do I Self-Certify My Sick Leave?
You fill in a short form with your name, the dates you were off, and a brief reason for your absence, then sign and hand it to your employer once you’re back at work. Most employers use the SC2 form, or their own version that asks for the same basic details.
Try our free online tool
Answer a few quick questions and get a ready-to-download self-certification letter with your details already filled in. Download it here, no sign-up needed.
Can My Employer Ask for a Self-Certification Form?
Yes, and most do. Employers are entitled to ask for self-certification evidence to support their Statutory Sick Pay records, usually for any absence of four days or more, but they cannot demand a doctor’s note for the first seven days of an illness. If your employer keeps asking for a GP note for a short absence, that’s worth raising with HR directly.
Frequently Asked Questions
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