How to Complete the C100 Form: A Section-by-Section Guide

Before You Start

The C100 is available from hmctsformfinder.justice.gov.uk. Before completing it, ensure you have attended a MIAM or have a valid exemption. You will need your MIAM certificate reference number. Gather information about the child, the other party, and the history of the arrangements.

Section 1: Without Notice Applications

Tick this section only if you are applying without giving notice to the other party. Without-notice applications are reserved for genuine emergencies where giving notice would cause risk to the child or you. Most applications are made on notice.

Section 2: The Orders You Are Applying For

Set out clearly what orders you want. A child arrangements order (who the child lives with and spends time with) is the most common. You can also apply for a prohibited steps order (preventing the other party from taking a specific action) or a specific issue order (resolving a specific dispute about the child's upbringing).

Section 3: The Children

Provide full details of each child: full name, date of birth, gender, and current address. Include details of any other proceedings that have involved the children.

Section 4: The Applicant

Your personal details, address, and contact information. If you are concerned about your address being known to the other party, you can ask the court to keep it confidential.

Section 6: The MIAM

This is one of the most important sections. You must confirm that you attended a MIAM or that an exemption applies. The form lists the exemptions -- domestic abuse, urgency, child protection concerns, and others. If an exemption applies, tick the relevant box and be prepared to provide evidence.

Section 7: The Reasons for Your Application

Explain clearly why you are making the application and what has gone wrong with the current arrangements. Be factual and specific. The court sees many C100 applications -- a clear, concise, factual account will be more effective than a lengthy emotional narrative.