What are the early signs of autism in children?

Autism in children can look very different depending on the child's age, profile, and how much they mask. Common signs include: taking things very literally, preferring one close friend to groups, difficulty with the back-and-forth of conversation, strong distress at changes to routine or plans, difficulty transitioning between activities, significant sensory sensitivities (clothing, food, sound), intense and specific interests, emotional dysregulation that seems disproportionate, and a significant gap between how a child presents at school versus at home.

How do I get my child assessed for autism in the UK?

Start with your GP. Describe specifically what you observe — at home, at school, during transitions — and ask for a referral to the local autism assessment service. Bring written notes or this checklist. If your child masks at school and professionals aren't seeing what you're seeing, say so explicitly. For girls specifically, look for a clinician with experience of the female autistic phenotype. NHS waits are long in most areas; NHS Right to Choose may offer access to an approved private provider more quickly.

Is this autism checklist a diagnostic tool?

No. This checklist is not a diagnostic tool and cannot diagnose autism. It is designed to help parents identify patterns worth discussing with a clinician or school SENCO. A formal autism diagnosis requires assessment by a qualified clinician using standardised tools.

Autism checklist for children— my observations

Name:

Date: 27 April 2026

I recognised 0 out of 20.

A few things resonate

You've recognised some of these, but not many. If your concerns are mild and not getting in the way of your child's daily life, you may want to keep watching. If any of these are causing real difficulty, a conversation with your GP or the school SENCO is the right next step.

The masking problem

One of the most common reasons autism is missed in children — especially girls — is masking. Many autistic children learn to hold themselves together in settings where there's social pressure to conform, and then fall apart at home. This can mean:

School says they're fine: Teachers see a child who is coping, or mostly coping. What they don't see is what's happening at home, or the effort it takes to hold things together in the classroom.
The assessment may not capture the real picture: Standard autism assessments involve a clinical appointment. A child who masks well may not display autistic behaviour in that setting. This is a known limitation, particularly for girls.
Girls mask more: Autistic girls are significantly more likely to mask than autistic boys, and significantly less likely to be identified before age 11. If you have a daughter and your concerns aren't being taken seriously, the autism in girls guide covers this specifically.

If professionals aren't seeing what you're seeing, that's a recognised problem — not a reason to drop it. Keep written records of what you observe at home, ask school to document what they observe, and be specific about the gap between the two.

Generated from neuroequipped.com. Not a diagnostic tool.

What to do if you recognised a lot of this

A high score here is a signal to pursue, not a diagnosis. The next step is a conversation with your GP and your child's school SENCO.

What to say to your GP:

"I'd like to refer my child for an autism assessment. I'm observing [specific things from your list] — particularly the gap between how they present at school and what I see at home. I'd like to use NHS Right to Choose if possible."

What to say to school:

"I understand you may not be seeing these difficulties in the classroom. Research shows autistic children often hold things together at school and present differently at home. I'd like school to observe and document what they notice, to support a GP referral."

You don't need school to agree with you in order to get a GP referral. But school observations carry weight in an assessment, and it's worth asking them to document what they see.

The gap between school and home

One of the most common obstacles parents face is being told by school that their child is fine. If your child presents very differently at home than at school, that gap is clinically significant — not a reason to drop your concerns.

Many autistic children, particularly girls, learn to hold themselves together in settings where there's social pressure to conform. The effort of doing so costs a great deal, and the consequences — meltdowns, shutdowns, emotional dysregulation — tend to appear at home, not at school.

Written records of home behaviour are important. If you're keeping a diary of what you observe, bring it.

This article is part of the Neuroequipped Autism guide. For a full overview of autism in children, see What is autism?. For autism in girls specifically, see Autism in girls: why it looks different. For the assessment process, see Autism assessment: NHS and private options.

Neuroequipped provides research-grounded information for parents and educators. It is not medical advice. If you have concerns about your child, speak to your GP or paediatrician.

Autism checklist for children: what to bring to your GP