C100 Application — Section by Section Completion Guide
A detailed section-by-section guide to completing the C100 application form for child arrangements, prohibited steps and specific issue orders in the Family Court of England and Wales.
The C100 is the document that starts child arrangements proceedings. The impression it creates matters. This guide shows you exactly how to complete every section — accurately, effectively, and without the mistakes that undermine so many applications.
3 chapters covering the complete form:
Chapter 1 — Before You Start — What You Need to Know About the C100
Chapter 2 — Completing the C100 — Section by Section
Chapter 3 — Filing, Service and What Happens Next
WHAT THIS COVERS
✓ The MIAM requirement and exemptions — how to address section 1
✓ Section 2 — how to describe what you want with precision
✓ Domestic abuse and risk — section 8 explained
✓ Urgent and without-notice applications — when and how
✓ Form C1A — allegations of harm
✓ Filing, fees, service and what CAFCASS does next
✓ The most common C100 mistakes — and how to avoid them
WHAT YOU GET
✓ 3 complete chapters — 2,200+ words of practical guidance
✓ Written by a qualified solicitor (non-practising)
✓ PDF — read on any device, lifetime access
This guide is for educational purposes only and does not constitute legal advice.