School Attendance Codes Explained, From I to U
Only four codes count as unauthorised absence. What each code means, which ones are taken out...

A school must consider a penalty notice once a child reaches 10 sessions of unauthorised absence in a rolling 10 school weeks. A session is half a day, so that is usually five days. The first fine is £160 per parent per child, reduced to £80 if paid within 21 days. A second fine for the same parent and child within three years is a flat £160 with no discount. A third cannot be issued within three years of the first, and at that point the council considers other action, which often means prosecution.
The fine is the part everyone has heard of and the part almost nobody has read. Most of what circulates is roughly right about the amount and completely wrong about how you get there, how many you can get, and what happens next.
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It is one lawful way to educate a child in England and it sits alongside school, not above it. It suits some families and not others. Plenty of children are happy and well taught at school, and plenty of the parents who write to us end up staying and getting things put right there instead.
Nothing on this page is an argument for taking your child out. It is not an argument for keeping them in either. We write the law and the numbers down plainly so that whichever way you go, you go knowing what is actually true, because most people are handed a decision and almost none of the picture.
If school is the right place and something in it is going wrong, that is usually the thing worth sorting first. Your child’s right to an education is the same either way.
This is the framework as it stands in the July 2026 guidance, without the scare stories.
Under section 444 of the Education Act 1996, it is an offence for a parent to fail to secure the regular attendance of a child registered at a school. A penalty notice is an out of court settlement offered instead of prosecuting that offence. Paying it discharges the matter. The guidance is explicit that fines are:
“intended to prevent the need for court action and should only be used where it is deemed likely to change parental behaviour and support to secure regular attendance has been provided and has not worked or been engaged with, or would not have been appropriate in the circumstances of the offence.”
The example the guidance gives of a case where support would not have been appropriate is an unauthorised holiday in term time. That is why holidays go more or less straight to a fine while other absence usually goes through support first.
All state funded schools must consider a penalty notice when a pupil hits the national threshold:
“The threshold is 10 sessions of unauthorised absence in a rolling period of 10 school weeks.”
Some detail that changes how often people cross it:
Late arrival is the one that catches people out. If your child arrives after the register has closed, that is code U and it counts as unauthorised absence for the whole session even though they were in school. Schools must set the register closing time in their attendance policy, and it cannot be more than 30 minutes after the register opens.
Reaching the threshold does not mean a fine is automatic. The guidance says schools:
“should not have a blanket position of issuing or not issuing penalty notices and should make judgements on each individual case to ensure fairness and consistency across the country.”
Per parent, per child:
Both parents can each be issued a notice for the same child, and a notice can be issued for each child, so a family with two children and two liable parents can receive four.
This is the part that is almost never explained, and it is the part that matters most if attendance is a long running problem rather than one holiday.
“Only 2 penalty notices can be issued to the same parent in respect of the same child within a 3 year rolling period.”
Where the threshold is met a third time inside those three years, the guidance says alternative action should be taken instead, and that this:
“will often include considering prosecution, but may include other tools such as one of the other attendance legal interventions.”
So the escalation is not an endless run of eighty pound fines. It is two, and then something more serious. Unpaid notices still count towards the limit, including where prosecution went ahead. Withdrawn notices do not. If a child has moved school or local authority in the previous three years, the council is expected to check whether earlier notices exist.
Reading that as a threat is the wrong way round. The practical point is that if you are anywhere near a second notice, the conversation to have is about support and about why the absence is happening, because the next step after two is a different kind of process.
Penalty notices must be issued under the Education (Penalty Notices) (England) Regulations 2007, as amended, and can only be issued by a headteacher or someone they authorise, such as a deputy or assistant head, a local authority officer, or the police. They must also follow the Local Code of Conduct that each local authority draws up and maintains.
That local code is a public document and worth finding, because it sets out how your council applies the national framework in practice. Where a notice is issued by someone other than a council officer, that person is expected to check with the council first and must send it copies.
There is a second, separate type of penalty notice. If a parent allows an excluded or suspended child to be present in a public place during school hours in the first five days, without reasonable justification, a notice can be issued. The school must have told the parent which days that applies to.
That notice is £120, reduced to £60 if paid within 21 days. It sits outside the national framework, so it does not require support to have been tried first and it does not count towards the two notice limit.
Fines follow unauthorised absence. Absence recorded as illness under code I is authorised and does not count towards the threshold. Nor do sessions recorded as authorised leave, or the codes for circumstances outside the family’s control, such as transport the council was supposed to arrange and did not.
Because of that, the single most useful thing you can do if a fine is looming is to check how sessions were actually coded rather than assume. Our guide to the attendance codes sets out which ones count. If school is asking for a doctor’s note before it will authorise illness, the guidance on medical evidence is narrower than most parents are told.
Penalty notices are for unauthorised absence from a school a child is registered at. A child who has been lawfully deregistered is not on a school roll, has no attendance register, and cannot be fined for absence. The duty that applies instead is the parent’s duty under section 7 of the Education Act 1996 to provide a suitable full-time education.
That is a genuine difference, not a loophole, and it is worth saying plainly that deregistering to avoid a fine is a bad idea. We have written about why. Taking a child off roll for a cheap week away and putting them back afterwards tends to be noticed, and your preferred school place is not held open for you.
In 2024/25, 176,361 children in England missed at least half of school, and the picture varies a great deal between areas. See the absence figures for your council.
The national threshold is 10 sessions of unauthorised absence in a rolling period of 10 school weeks. A session is half a day, so that is usually five school days. The sessions can be any combination of unauthorised absence and do not have to be consecutive.
The first penalty notice is £160 per parent per child if paid within 28 days, reduced to £80 if paid within 21 days. A second notice for the same parent and child within three years is a flat £160 with no discount.
Only twice for the same parent and the same child in a rolling three year period. A third notice cannot be issued within three years of the first. Where the threshold is met again in that time, the council considers other action, which often includes prosecution.
Not for absence recorded as illness, which is authorised and does not count towards the threshold. Fines follow unauthorised absence, so it is worth checking how the sessions have been coded on the register.
It can. Arriving after the register has closed is recorded as code U and counts as unauthorised absence for that session. The guidance says a register should not be open for longer than 30 minutes, and the closing time should be in the school’s attendance policy.
Yes. A penalty notice can be issued to each parent liable for the offence, and one can be issued for each child. The guidance says they should usually go to the parent or parents who allowed the absence.
No. Penalty notices apply to unauthorised absence from a school a child is registered at. A lawfully deregistered child is not on a roll and has no attendance register. The parent’s duty to provide a suitable full-time education under section 7 of the Education Act 1996 applies instead.
This is information, not legal advice
Darling Mellow is a parenting website. We are not solicitors, we are not regulated to give legal advice, and nothing here is advice about your particular child or situation. We write about the law in England, we date everything and we link our sources so you can check them. Deadlines and duties change, and only you know your full circumstances, so please take proper advice before making a decision that matters.
Where to get free or regulated advice
If you are in Wales, Scotland or Northern Ireland, the law and the services differ and you should use your own nation’s guidance.
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