Do I Need a Solicitor to Complete a C100 Form?
Key Highlights:
- You don’t legally need a solicitor to complete a C100 form, but it can be helpful for complex cases
- The C100 form costs £270 and must be submitted with proof of attending a Mediation Information Assessment Meeting (MIAM)
- Self-representation is increasingly common, with many parents successfully completing C100 forms themselves
- Mediation can help you reach agreement without needing to go to court at all
- Free legal support options include Mackenzie friends, Citizens Advice, and family mediation services
- Getting the form wrong can delay your case, so accuracy is important
Making Sense of Court Applications
You’re facing a difficult situation with your children’s arrangements, and you’ve discovered you need to complete something called a C100 form. You’re probably wondering whether you can manage this yourself or whether you’ll need to hire a solicitor. It’s a question we hear all the time, and the answer isn’t always straightforward.
The good news is, when it come to the question ‘Do I need a solicitor to complete a C100 form?’ the short answer is – You don’t. Many parents successfully represent themselves in family court proceedings. However, whether you should get legal help depends on your specific situation, how confident you feel, and the complexity of your case.
Let’s explore what’s involved, when legal advice might be helpful, and how mediation could help you avoid court altogether.
What Is a C100 Form?
A C100 form (officially called the C100 Application for a court order) is the document you need to complete if you’re applying to the family court about arrangements for your children. This might be about where they live, who they spend time with, or specific issues like schooling or medical treatment.
The form is used for applications under the Children Act 1989, and covers issues including:
- Child Arrangements Orders (previously called residence and contact orders)
- Prohibited Steps Orders (preventing a parent from doing something)
- Specific Issue Orders (asking the court to decide on a particular matter)
- Parental Responsibility Orders
The C100 form itself runs to several pages and asks detailed questions about you, the other parent, your children, and what you’re asking the court to decide. You’ll need to explain why you’re making the application and what’s happened so far to try to resolve things.
Can You Complete a C100 Form Without a Solicitor?
Yes, you can absolutely download and complete a C100 form without a solicitor. The form is designed to be completed by individuals, and thousands of parents do this every year. The court system recognises that not everyone can afford legal representation, and they’ve made efforts to make the process more accessible.
However, “can you” and “should you” are different questions. Here’s what you need to consider.
When Self-Representation Works Well
Self-representation (called being a “litigant in person”) can work well when:
- Your case is relatively straightforward
- You and the other parent can communicate, even if you disagree
- There are no safeguarding concerns or allegations of abuse
- You feel confident reading and following instructions
- You’ve attempted mediation or other resolution methods
- You have time to research and prepare your case
At Mediate UK, we’ve worked with many parents who successfully completed their C100 forms themselves. One couple we supported had disagreed about school holidays but had no other major concerns. They completed the form together after mediation helped them identify the specific issues they couldn’t resolve. The court made a simple order that reflected most of what they’d already agreed.
When Legal Advice Can Be Helpful
There are situations where getting legal advice before or during the C100 process can be really valuable:
- Complex financial situations – If you’re also dealing with property, pensions, or business assets
- International elements – When one parent lives abroad or might take the child overseas
- Safeguarding concerns – Any allegations of domestic abuse, substance misuse, or child protection issues
- Special educational needs – Complex decisions about schooling and support
- Relocation cases – When one parent wants to move away with the child
- Previous court orders – If there are existing orders you need to vary
Jess Knauf, Director of Client Strategy at Mediate UK, explains: “We worked with a family where the father wanted to move to Scotland with their daughter. The mother felt this was too far away. This wasn’t just about filling in a form – it involved understanding how courts approach relocation, what evidence would be relevant, and how to present a strong case. In situations like this, getting some legal advice can make a real difference.”
Understanding the C100 Form Sections
The current C100 form (updated 2026) is 25 pages long. Rather than working through numbered sections, you’ll move page by page, and many pages only need completing if they apply to your situation. Here’s an overview of what to expect:
Page 1 – Application Under Section 8 Children Act
This is where you confirm your name, the respondent’s name, and the type of order you’re applying for, whether that’s a Child Arrangements Order, a Prohibited Steps Order, or a Specific Issue Order. You’ll also indicate whether there are concerns about risk of harm, previous court proceedings, or any international elements to the case.
Pages 2 and 3 – Children’s Details
Full details of each child the application concerns, including names, dates of birth, who they currently live with, and whether any of them are known to local authority children’s services or subject to a child protection plan. Parental responsibility for each party should also be recorded here.
Pages 4 to 12 – MIAM and Exemptions
This is the section that trips people up most. You must show either that you’ve attended a MIAM (Mediation Information and Assessment Meeting) or that you qualify for one of the recognised exemptions, such as domestic abuse, child protection concerns, or urgency. Page 12 is completed and signed by your accredited family mediator, confirming MIAM attendance. This signed page is valid for four months.
Page 13 – Why You’re Making This Application
This is where you explain the background to your application. Keep it factual and focused on the children’s best interests. A brief overview of the situation is what’s needed here, not a detailed history. You’ll also note whether you’ve previously prepared a parenting plan.
Pages 14 and 15 – Urgent and Without Notice Hearings
Only complete these pages if you’ve ticked the relevant urgency exemption on the MIAM section. These cover situations where immediate court action is needed to protect a child from imminent harm.
Page 16 – Other Court Cases
If there have been previous or ongoing court proceedings involving the children, you’ll record the details here and can attach any existing orders.
Pages 17 to 19 – International Elements and Attending Court
Section 8 covers cases with an international element, such as a parent living abroad or a proposed relocation. Pages 18 and 19 deal with practical court attendance requirements, including interpreters, disabilities, special measures, and separate waiting room requests.
Pages 20 and 21 – About You and the Respondent
Your full contact details as the applicant, and the same for the respondent. If you have concerns about the other party knowing your address, complete a separate Form C8 for confidential contact details.
Page 22 – Others to be Given Notice
Anyone else who should be informed of the application, for example a grandparent the child regularly stays with, or details of other children living in the household who aren’t part of this application.
Page 23 – Solicitor’s Details
If a solicitor is acting for you, their details go here. Many solicitors will complete the form on your behalf if instructed.
Pages 24 and 25 – Checklist and Statement of Truth
The checklist prompts you to confirm all relevant sections have been completed and that you have at least three copies of the form. The Statement of Truth is where you sign and date the application, confirming everything you’ve stated is true to the best of your knowledge.
Get in touch to find out how Mediate UK can help with your parenting or financial dispute, or with a divorce, separation or legal advice. Call 0330 999 0959 or click here.
The MIAM Requirement: Why It Matters
Before you can submit your C100 form, you usually need to attend a MIAM first. This is a requirement under the Family Procedure Rules. A MIAM is a meeting with a qualified family mediator who’ll explain how mediation works and whether it might help you reach agreement without going to court.
The MIAM costs around £120 plus VAT (though you might get this free if you’re on certain benefits), which is considerably less than the £270 court fee for the C100 form itself.
MIAM Exemptions
You don’t need a MIAM if:
- There are current or previous domestic abuse allegations
- The application is urgent (for example, risk of a child being taken abroad)
- The other parent can’t be contacted or found
- The other parent is in prison serving a sentence of more than a year
- You’re applying to enforce or vary an existing order made in the last 12 months
Even if you’re exempt, mediation might still be worth considering. At Mediate UK, we’ve helped many families reach agreements that worked better for everyone than a court order would have done.
How Much Does It Cost to Complete a C100 Form?
Let’s talk about costs, because this often influences the solicitor decision:
DIY Costs
- C100 court fee: £270 (can be reduced or waived if you’re on benefits)
- MIAM fee: Around £120-£150 (may be free on legal aid)
- Mediation: £150-£200 per person per session if you proceed*
- Help with the form: Free resources available online
“Here’s something a lot of people don’t know about” – says Jess – “The government offers vouchers worth up to £500 towards your mediation costs. This scheme exists because the government recognises that mediation works better for families than court proceedings, and they actively encourage people to try it first.”
Solicitor Costs
- Initial consultation: £150-£300
- Completing the C100: £500-£1,500
- Full representation: Can run to £5,000-£15,000+ depending on complexity
- Barrister for hearings: £1,000-£3,000+ per hearing
The cost difference is significant. If your case is straightforward, completing the form yourself can save thousands of pounds. However, if getting it wrong means delays, extra hearings, or a poor outcome, the cost of legal advice might be money well spent.
Step-by-Step: Completing Your C100 Form Yourself
If you’ve decided to complete the C100 form without a solicitor, here’s how to approach it:
Step 1: Attend Your MIAM
Book a MIAM with a qualified mediator. They’ll assess whether mediation might work and give you the certificate you need for your C100 form.
Step 2: Gather Your Information
You’ll need:
- Full names and addresses for you, the other parent, and the children
- Dates of birth for everyone involved
- Details of any previous court cases
- Your MIAM certificate (or evidence of exemption)
- Information about safeguarding concerns if relevant
Step 3: Download and Read the Form
Get the C100 form here – this ensures it is the latest copy. Read all the guidance notes carefully before you start.
Step 4: Complete a Draft First
Don’t fill in the final form straight away. Complete a draft version first, making notes about what you want to say. This helps you refine your wording.
Step 5: Be Specific and Factual
When explaining your application, focus on facts rather than emotions. Instead of “He’s impossible to deal with,” write “We’ve been unable to agree holiday arrangements despite several attempts to discuss this.”
Step 6: Check and Double-Check
Mistakes can delay your case. Check spellings, addresses, and dates carefully. Make sure you’ve signed where required.
Step 7: Make Copies
Keep copies of everything you submit. You’ll need these for reference.
Step 8: Submit Your Application
Send your completed form, MIAM certificate, and fee to your nearest family court. You can find your local court on the courts and tribunals finder.
When Should You Get Legal Advice?
Even if you complete the form yourself, there are points where legal advice can be valuable:
Before You Apply
A solicitor can review your situation and advise whether a court application is your best option. Sometimes there are better alternatives you might not have considered.
After Completing the Form
Some solicitors offer document review services. They’ll check your completed C100 form and suggest improvements before you submit it. This costs much less than full representation but gives you peace of mind.
After Receiving the Other Parent’s Response
Once the other parent files their response, you might want advice on how to proceed, especially if they’ve raised issues you weren’t expecting.
Before a Court Hearing
Many solicitors offer “unbundled” services where they’ll represent you for a specific hearing without taking on your whole case. This can be a cost-effective middle ground.
Mckenzie Friends and Court Support
If you can’t afford a solicitor but want support, a Mckenzie friend might help. This is someone who can:
- Sit with you in court
- Take notes during hearings
- Help you organise your papers
- Offer moral support
- Quietly give advice (though they can’t speak for you in most cases)
A Mckenzie friend doesn’t need formal qualifications. They can be a friend, family member, or someone from an organisation that provides this support. However, they can’t do everything a solicitor can. They can’t:
- Address the judge (except in rare circumstances with the court’s permission)
- Act on your behalf outside court
- Be paid for their services (unless they’re a qualified legal professional)
The right to a Mckenzie friend was confirmed in the case of McKenzie v McKenzie [1970] and has been recognised in subsequent cases including Re N (A Child) [2007] EWCA Civ 1053.
Family Law Service
Need Help Completing Your C100 Form?
The C100 is a detailed form and the way it is worded can really affect how the court views your application. Our team at Family Law Service can complete it with you, making sure everything is clear, accurate and presented in the strongest possible way.
How Mediation Can Help You Avoid Court Entirely
Here’s something important: you might not need to complete a C100 form at all. At Mediate UK, we’ve helped hundreds of parents reach agreements through mediation that worked better for their families than a court order would have.
What Mediation Offers
- Faster resolution – Reach agreement in weeks rather than months
- Lower cost – Significantly cheaper than court proceedings
- Flexible outcomes – Create arrangements that suit your family’s specific needs
- Better relationships – Work together rather than fight in court
- Child-focused – Keep your children’s wellbeing at the centre
We worked with a couple who’d been stuck in disagreement about weekday contact for months. The mother wanted the father to have Wednesday overnights, but he worked late those nights. In mediation, they realised Tuesday overnights worked for everyone. A court wouldn’t have had time to understand these details – they’d have made a standard order that might not have worked.
When Mediation Isn’t Suitable
Mediation isn’t right for everyone. It doesn’t work well when:
- There’s ongoing domestic abuse or controlling behaviour
- One parent won’t engage meaningfully
- There are immediate safeguarding risks
- One party lacks mental capacity to participate
But even in complex cases, specialist family mediation can sometimes help. At Mediate UK, we’re trained to recognise when mediation is appropriate and when court might be necessary.
Common Mistakes When Completing a C100 Form
Based on our experience supporting parents through this process, here are mistakes to avoid:
Being Too Vague
Saying “I want contact with my children” isn’t specific enough. The court needs details: which days, what times, supervised or unsupervised, collections and returns.
Using Emotional Language
“She’s vindictive and trying to punish me” doesn’t help your case. Stick to facts: “Despite agreeing in mediation to weekend contact, this hasn’t happened for the past three months.”
Forgetting the MIAM Certificate
Your application will be rejected without this. Make sure it’s attached.
Not Considering Legal Aid
You might qualify for free legal help. Check your eligibility at gov.uk/legal-aid.
Applying for Everything
Don’t tick every possible order unless you genuinely need them all. Courts prefer specific, focused applications.
Missing Deadlines
If the court writes to you, respond by the deadline. Missing these can harm your case.
Not Keeping Records
Document everything. Save emails, texts, and notes of conversations. You might need this evidence.
What Happens After You Submit Your C100 Form?
Once you submit your C100 form, here’s what typically happens:
- The court processes your application (usually 1-2 weeks)
- A hearing date is set (usually the First Hearing Dispute Resolution Appointment)
- The other parent receives your application and has time to respond
- Both parties attend the first hearing where the court explores whether agreement is possible
- Further hearings may be scheduled if needed
- A final order is made (or the case is concluded if you reach agreement)
The process typically takes 6-12 months from application to final order, though urgent cases can be faster. This is why many parents prefer mediation, which usually takes 2-4 sessions over 6-8 weeks.
Frequently Asked Questions
Frequently Asked QuestionsHow long does it take to complete a C100 form? Most people spend 2-4 hours completing the form properly. Don’t rush it. Take your time to get it right.
Can I get help from the court to complete my C100 form? Court staff can answer basic questions about the process but can’t give legal advice or help you complete the form. They can’t tell you what to write.
What if I make a mistake on my C100 form? Minor errors can usually be corrected at your first hearing. However, significant mistakes might mean your application is rejected and you need to resubmit.
Do I need to serve the C100 form on the other parent? No, the court does this for you. They’ll send a copy to the other parent along with notification of the first hearing date.
Can I get the court fee waived? Yes, if you’re on certain benefits or have a low income. Complete form EX160 to apply for fee exemption.
What happens if the other parent doesn’t respond? The case will still proceed. The court can make decisions even if one parent doesn’t engage, though they’ll try to encourage participation.
Can I change my C100 application after submitting it? You can apply to amend your application, but you’ll need the court’s permission. It’s better to get it right first time.
How detailed should my answers be? Provide enough detail that the court understands the situation, but stay focused on the key issues. Two or three clear paragraphs are usually better than pages of detail.
Making Your Decision: Solicitor or Self-Representation?
The question isn’t really “do I need a solicitor to complete a C100 form?” It’s “what’s the best approach for my situation?”
Consider self-representation if:
- You feel confident with paperwork and forms
- Your case is relatively straightforward
- You’ve attempted other resolution methods
- You can’t afford legal fees
- You have access to support (friends, family, Mackenzie friend)
Consider getting legal advice if:
- The case involves complex legal issues
- There are safeguarding concerns
- You’re unsure what orders to apply for
- The other parent has legal representation
- You feel overwhelmed by the process
Remember, it’s not all or nothing. You might:
- Complete the form yourself but have a solicitor review it
- Get initial advice then represent yourself
- Start alone but get help for specific hearings
- Use mediation alongside limited legal advice
“In most cases, we recommend that parents try mediation first.” – Jess adds – “If mediation helps you reach agreement, you might not need a C100 form at all. Even if you can’t agree everything, mediation often narrows the issues, making any court application simpler and shorter.”
Your Next Steps
If you’re considering a court application, here’s what we recommend:
First, attend a MIAM and explore whether mediation might help. Even if you think it won’t work, you’re required to try (unless exempt), and you might be surprised.
Second, gather all the information you’ll need for your C100 form. Having everything ready makes the process much smoother.
Third, consider whether a brief consultation with a solicitor would be helpful. Many offer fixed-fee initial consultations where you can discuss your case and get specific advice.
Fourth, if you decide to proceed yourself, use all available free resources. Citizens Advice, your local family court, and organisations like Mediate UK can all provide guidance.
Finally, remember that completing a C100 form yourself doesn’t mean doing everything alone. There’s support available, and asking for help isn’t a sign of weakness. It’s a sensible approach to an important situation.
Get Expert Support for Your Family Dispute
At Mediate UK, we understand how stressful court applications can be. Whether you’re wondering “do I need a solicitor to complete a C100 form”, or exploring your options; or just looking for an alternative to court, we’re here to help.
Our experienced family mediators can:
- Conduct your MIAM and explain your options
- Help you reach agreement through mediation
- Provide guidance on the court process
- Offer a supportive, professional environment
Quick C100 Form Guide
A quick overview of the C100 form, common mistakes to avoid, and how Mediate UK can help you.
Mediate UK is an FMC accredited, Legal Aid Agency contracted provider, with 715+ reviews rated 4.8/5 and more than 23,000 people helped. Book your MIAM to get things moving, find out whether you qualify for legal aid, or have a free 15-minute call with our team if you would rather talk it through first. Urgent MIAMs include a signed court form.
