C100 — Application for a Child Arrangements, Prohibited Steps or Specific Issue Order
The primary application form for most private law children proceedings in the Family Court under the Children Act 1989, including residence, contact, and specific issue orders.
Who uses this form
Parents, guardians, or other persons with parental responsibility applying for orders about where a child lives or spends time, or seeking to prevent or require a specific step in the child's upbringing.
When to use it
Use when you cannot agree arrangements for a child following separation, or when you need the court to resolve a specific dispute. You must normally attend a MIAM (Mediation Information and Assessment Meeting) before applying unless an exemption applies.
Where to file
Family Court at the local hearing centre. File the original plus three copies. Apply online via MyHMCTS if registered.
Time limit / deadline
No strict deadline, but delay can prejudice welfare assessments. Urgent applications can be made ex parte (without notice).
Court fee
£232 (as of April 2025).
Fee remission
Help with Fees (EX160) available. Children in care proceedings (public law) are separate — different fee rules apply.
Common mistakes to avoid
Failing to attend a MIAM or claim a valid exemption — the court will return the application without this
Not completing the C1A form where there are allegations of domestic abuse, harm, or risk to the child
Not including sufficient details of the proposed order — vague applications cause delay
Failing to file the required number of copies (original plus three)
Not updating the court if the child's circumstances change after filing
Related Guides
Related Letter Templates
Official source
Download / view form on GOV.UK or HMCTSAlways download forms directly from official government sources. Third-party copies may be outdated.