How Do I Respond to a C100 Form? Complete Guide to Your C7 Response

How Do I Respond to a C100 Form: Your Complete Guide

Quick Overview: Key Points About Responding to a C100

• You must respond to a C100 form using a C7 form within 14 days of receiving it
• The C100 is a court application about child arrangements, and your response is your chance to share your views
• If there are allegations of harm, you’ll also need to complete a C1A form
• Mediation can still help even after court proceedings start, and may resolve matters faster
• Missing the deadline or failing to respond can result in court decisions being made without your input
• Free legal advice and support are available to help you through this process

Receiving a C100 form in the post can feel overwhelming. You might be surprised, worried, or even angry that court proceedings have been started about your children. You’re not alone in feeling this way.

At Mediate UK, we’ve worked with hundreds of parents who’ve found themselves in this position. The good news is that responding properly gives you the chance to have your voice heard and to work towards arrangements that put your children first. This guide will walk you through exactly how to respond to a C100 form, what it means, and what happens next.

What Is a C100 Form?

A C100 form is the official court application used in England and Wales when someone (usually a parent or person with parental responsibility) asks the court to make decisions about a child.

The form is used to apply for different types of orders, including:

• Child Arrangements Orders – deciding where a child lives and who they spend time with
• Prohibited Steps Orders – preventing specific actions, like taking a child out of the country or changing their school
• Specific Issue Orders – allowing particular decisions to be made, such as medical treatment or choice of education

When you receive a C100, it means the other parent (or another person with parental responsibility) has formally asked the court to intervene. The form you receive will explain what orders they’re seeking and why.

Understanding Why Someone Has Applied to Court

Before making a court application, the applicant must usually attend a Mediation Information and Assessment Meeting (MIAM). This meeting explains how mediation works and whether it could help resolve the dispute without court.

There are some exceptions where someone can apply to court without attending a MIAM, such as cases involving domestic abuse or urgent situations. The C100 form will indicate whether a MIAM exemption has been claimed.

“We often see parents who are shocked when they receive a C100,” explains Jess Knauf, Director of Client Strategy at Mediate UK. “Sometimes communication has broken down so completely that one parent felt court was their only option. But even at this stage, we can help parents find a better way forward.”

What Documents Will You Receive With the C100?

When a C100 form is served on you, you’ll typically receive several documents:

1. The C100 application – showing what orders are being requested and the reasons given
2. A notice of hearing – telling you when and where the first court hearing will be
3. A C7 response form – the form you must complete to respond
4. Guidance leaflets – explaining the court process and where to get help
5. Safeguarding information (if applicable) – if there are concerns about harm or safety

Make sure you read all documents carefully. The notice of hearing is particularly important because it tells you exactly when you need to attend court.

How to Respond to a C100 Form: Step-by-Step Guide

Step 1: Don’t Panic, Take Time to Read Everything

Your first reaction might be emotional, and that’s completely understandable. However, it’s important to read through the C100 carefully to understand exactly what’s being asked for.

Take notes if it helps. What specific orders is the applicant requesting? What reasons have they given? Are there any allegations you need to address?

Step 2: Complete Your C7 Response Form

The C7 form is your official response to the court application. This is your opportunity to explain your position and what you believe is best for your child.

The C7 form asks you to provide:

• Your personal details and contact information
• Whether you agree or disagree with the orders being sought
• Your reasons for agreeing or disagreeing
• What arrangements you think would work best for your child
• Any other information the court should consider

When completing the C7, be clear and factual. Focus on your child’s needs rather than criticising the other parent. Courts want to see parents who can put their children first.

Step 3: Complete a C1A Form If Needed

If the C100 form contains allegations of harm, abuse, or domestic violence, you must also complete a C1A form(Allegations of Harm and Domestic Violence). This form allows you to respond to these serious allegations.

The C1A asks detailed questions about the allegations and gives you space to explain your version of events. You can also raise your own concerns about the applicant’s behaviour if relevant.

Be honest and specific when completing a C1A. If you need support with allegations of domestic abuse, organisations like Women’s Aid or Mankind Initiative can help.

Step 4: Gather Supporting Evidence

While your C7 response is mainly about your position, it can be helpful to gather evidence that supports your case:

• Records of your involvement in your child’s life (school events, medical appointments, activities)
• Communication between you and the other parent showing attempts to agree arrangements
• Proof of your living arrangements if relevant
• Any professional reports or letters that might be relevant

Don’t overwhelm the court with unnecessary documents, but do include anything that helps demonstrate your relationship with your child and your ability to meet their needs.

Step 5: Return Your Forms Within 14 Days

This is an important step. You must return your completed C7 (and C1A if applicable) within 14 days of receiving the C100. If the court has specified a shorter timeframe, you must meet that deadline instead.

Your response must be sent to:

• The court (address will be on the notice of hearing)
• The applicant or their solicitor
• Any other parties involved in the case

Keep proof that you’ve sent your response. Send it by recorded delivery or get proof of postage so you can demonstrate you met the deadline if needed.

What Should You Write in Your C7 Response?

One of the most common questions we hear at Mediate UK is: “What exactly should I say in my C7?”

The key is to be clear, honest, and child-focused. Here are some tips:

If You Agree With the Application

If you generally agree with what’s being proposed, say so clearly. Explain why you think the arrangements will work for your child. You might write something like:

“I agree that our child should spend alternate weekends with their father. This arrangement will allow them to maintain a close relationship with both parents. I’m happy to be flexible around school holidays and special occasions.”

If You Disagree With the Application

If you disagree, explain your concerns without being aggressive or overly critical. Focus on your child’s welfare:

“I’m concerned that the proposed arrangement for our daughter to spend every weekend away from home will be too disruptive to her routine. She has swimming lessons on Saturday mornings which she loves, and she needs time with her friendship group. I would like to propose alternate weekends instead, starting with contact from Saturday afternoon until Sunday evening.”

If There Are Safety Concerns

If you have genuine concerns about your child’s safety or wellbeing, you must raise these clearly. Be specific about what your concerns are and why:

“I’m worried about contact taking place at the applicant’s current address because his partner has a history of substance misuse. I would feel more comfortable if initial contact took place at a contact centre until I can be assured that my daughter will be safe.”

Consider Mediation, Even Now

Even though court proceedings have started, mediation can still help resolve matters more quickly and amicably. In fact, many cases settle through mediation after the first court hearing.

Mediation allows both parents to sit down with a trained, impartial mediator to discuss arrangements for their children. It’s often faster than going through the full court process, less confrontational, and gives you more control over the final agreement.

“We worked with a couple where the father had applied to court after communication broke down completely,” shares Jess from Mediate UK. “After the first hearing, they both agreed to try mediation. Within three sessions, they’d agreed parenting arrangements that worked for everyone, especially their children. The court simply approved what they’d agreed, and the case was closed.”

 

The court will actively encourage mediation at your first hearing. If you’re willing to try this approach, mention it in your C7 response. This shows the court you’re committed to working cooperatively.

Preparing for Your First Court Hearing (FHDRA)

The first hearing after you respond to a C100 form is called a First Hearing Dispute Resolution Appointment (FHDRA). This usually takes place 4-6 weeks after the application was made.

What Happens at an FHDRA?

The FHDRA is designed to:

• Identify the issues between you and the applicant
• Check if there are any safeguarding concerns
• Explore whether mediation or another form of dispute resolution could help
• Make interim arrangements if needed
• Set a timetable for the next steps if the case doesn’t settle

Both parents will usually be in separate waiting areas before the hearing. A CAFCASS officer (Children and Family Court Advisory and Support Service) will often speak to each parent individually before the hearing starts.

What Should You Bring to the Hearing?

Come prepared with:

• Your copies of all court documents
• Any evidence you mentioned in your C7
• Notes about what arrangements you’d like to propose
• A willingness to find solutions that work for your child

The hearing might only last 30-60 minutes, so make sure you’re clear about your main points.

Can the Court Make Orders at the First Hearing?

Yes, the court can make interim orders at the FHDRA if necessary. These are temporary arrangements that last until the final hearing. For example, the court might order supervised contact while investigations take place, or set a schedule for gradual reintroduction of contact.

What Happens If You Don’t Respond to a C100?

Failing to respond to a C100 form or attend the first hearing can have serious consequences:

• The court may make decisions without hearing your views
• You might be seen as unwilling to engage with the process
• Orders could be made that you strongly disagree with
• The court might make assumptions about why you didn’t respond

“We sometimes speak to parents who ignored the C100 because they were angry or thought it would just go away,” explains Jess. “By the time they contact us, orders have already been made and it’s much harder to change them. It’s always better to respond, even if you’re upset about the application.”

 

If you’ve missed the deadline, contact the court immediately to explain why and ask if you can still file a late response. The court has discretion to accept late responses in some circumstances.

Getting Legal Advice and Support

You don’t have to handle responding to a C100 form alone. Support is available:

Free Legal Help

• Check if you qualify for legal aid through Gov.uk
• Some family law solicitors might offer free or low cost initial consultations
• Law centres and advice agencies may provide free guidance

Mediation Support

At Mediate UK, we can explain the court process, help you understand your options, and support you through mediation if both parents are willing. Our experienced mediators understand how stressful court proceedings can be, and we’re here to help you find a way forward that works for your family.

Emotional Support

Don’t underestimate the emotional toll of court proceedings. Organisations like Gingerbread offer support for single parents going through this process.

Common Mistakes to Avoid When Responding to a C100

Based on our experience at Mediate UK, here are mistakes to avoid:

1. Missing the Deadline

The 14-day deadline is strict. Missing it can seriously harm your case. If you’re struggling to complete the forms in time, contact the court to request an extension before the deadline passes.

2. Being Too Emotional or Aggressive

It’s natural to feel angry or hurt, but your C7 isn’t the place for emotional outbursts. Stay factual and focus on your child’s needs. Criticising the other parent excessively will reflect poorly on you.

3. Not Taking Allegations Seriously

If the C100 contains allegations against you, address them properly in your C1A. Ignoring serious allegations or dismissing them won’t make them go away.

4. Providing Too Much or Too Little Information

Find the balance. Give enough detail to explain your position clearly, but don’t write a 20-page essay. Be concise and relevant.

5. Refusing to Consider Compromise

Courts favour parents who show flexibility and willingness to work together. Being completely rigid in your C7 response can work against you.

Understanding the Court’s Priorities

When the court reads your C7 response, it will be thinking about one thing above all else: what’s in your child’s best interests.

The court considers factors including:

• The child’s wishes and feelings (appropriate to their age and understanding)
• The child’s physical, emotional, and educational needs
• The likely effect of any change in circumstances
• The child’s age, sex, and background
• Any harm the child has suffered or might suffer
• How capable each parent is of meeting the child’s needs
• The range of powers available to the court

Your response should demonstrate that you understand these priorities and that you’re committed to your child’s wellbeing.

What Happens After You Respond?

Once you’ve filed your C7 response, here’s what typically happens next:

1. You attend the FHDRA as scheduled in your notice of hearing
2. CAFCASS may contact you before the hearing to conduct safeguarding checks
3. The court considers your response alongside the original C100
4. You may be directed to attend mediation if both parties are willing
5. Further hearings are scheduled if the matter doesn’t resolve at the FHDRA
6. Final orders are made once all issues are resolved, either by agreement or after a final hearing

The timeline varies depending on the complexity of your case, but most straightforward cases resolve within 6-9 months.

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FAQ: Responding to a C100 Form

How long do I have to respond to a C100?

You must respond within 14 days of receiving the C100 by completing and returning a C7 form. If there are allegations of harm, you must also complete a C1A within this timeframe. The court may specify a shorter deadline in urgent cases.

Can I respond to a C100 without a solicitor?

Yes, you can complete the C7 yourself. However, getting legal advice can be helpful, especially if the case is complex or involves serious allegations. Many solicitors offer free initial consultations, and you may qualify for legal aid.

What if I agree with some of the C100 but not all of it?

You can agree with parts of the application and disagree with others. In your C7, explain clearly which parts you agree with and which you don’t, and give your reasons. You can also suggest alternative arrangements you think would work better.

Do I have to pay to respond to a C100?

No, there’s no court fee for responding to a C100 with a C7 form. However, you may need to pay for legal advice, mediation, or other professional support. Some services may be available for free depending on your circumstances.

Can the court make decisions at the first hearing?

Yes, the court can make interim (temporary) orders at the First Hearing Dispute Resolution Appointment (FHDRA). These interim arrangements usually stay in place until the final hearing or until the case is resolved through agreement.

What happens if I don’t agree with the allegations in the C100?

If the C100 contains factual claims you disagree with, explain your version of events in your C7. If there are allegations of harm or abuse, you must respond to these in a C1A form, providing details and any evidence that contradicts the allegations.

Can I apply for my own orders when responding?

Yes. If you want to ask the court for different orders than those requested in the C100, you can apply for your own orders. You’ll need to complete additional forms and may need to pay a court fee depending on what you’re asking for.

Will I have to go to court in person?

Yes, you’re expected to attend all court hearings in person unless the court agrees to you participating remotely. Some hearings can take place by telephone or video, but you must attend as directed. Missing hearings can result in orders being made without your input.

How can mediation help if court proceedings have already started?

Mediation can still resolve matters even after a C100 has been filed. Many couples reach agreements through mediation after the first court hearing, which the court then approves. Mediation is usually quicker, less stressful, and gives you more control over the outcome than waiting for a judge to decide.

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Final Thoughts: Taking the Next Steps

Responding to a C100 form might feel daunting, but it’s an important step in making sure your views are heard. By completing your C7 thoroughly and on time, you’re demonstrating your commitment to finding arrangements that work for your children.

Remember, court proceedings don’t have to be adversarial. Even at this stage, there are opportunities to work cooperatively with the other parent, particularly through mediation. Most parents who come to Mediate UK after receiving a C100 are surprised by how much can be achieved when both parties are willing to talk with the help of a neutral mediator.

If you’re unsure about any aspect of responding to a C100, don’t hesitate to seek help. Whether it’s legal advice, mediation support, or just someone to talk through your options, support is available.

At Mediate UK, we understand how stressful family disputes can be. We’ve helped countless parents find better ways to resolve disagreements about their children, even when court proceedings have started. Our experienced mediators can help you explore options, communicate more effectively, and reach agreements that put your children’s needs first.

Get in touch today to find out how Mediate UK can help with your parenting dispute. Call 0330 999 0959 or book a free 15 minute consultation with our team.

Don’t let court proceedings define your children’s future. There’s a better way forward.

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Need More Information About C100 Applications?

If you’re dealing with a C100 form, you might find these related resources helpful:

• Can You File a C100 Application When Living Abroad? – Filing from overseas and what it means for your case
• Can a C100 Form Be Rejected? – Common mistakes and how to avoid them
• How Long Does a C100 Form Take to Process? – Realistic timelines and what to expect
• Who Can Apply for a C100 Form? – Understanding who has the right to apply
• Download the latest version of the C100 Form (updated in February 2026) – Make sure you have the correct form