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Template · Companies House
Companies House Extension Request Notes Template (UK, Free Download)
A guide and structured template for preparing a request to extend your company accounts filing deadline.
Built by a practising Chartered Accountant · Unlimited users · 60-day free trial · Last updated 23 September 2026
Quick answer
You can apply for more time to file your company accounts if an unplanned event beyond your control prevents you from meeting the deadline. You must apply *before* the deadline expires. [VERIFY] Most extension requests must now be made online.
Who is this sent to, and when?
- Sent to
- Internal
- When to send it
- Before the filing deadline if exceptional circumstances arise
When should you apply for an extension?
Apply as soon as you realise you won't meet the deadline due to an exceptional event, such as a fire, sudden serious illness of a key person, or a major cyber attack.
Do not wait until the day before the deadline. While some applications are processed instantly, others may take time to review.
Preview the template
Check the current process on GOV.UK before sending — many requests are now made online.
Companies House Extension Request Notes Template
Companies House Extension Request Preparation Notes
**Company Name:** [Company Name]
**Company Number:** [Company Number]
**Current Filing Deadline:** [Date]
### 1. Reason for Extension Request
[Clearly state the exceptional event, e.g., 'Sudden and severe illness of the sole director and bookkeeper on [Date]'.]
### 2. Impact on Filing
[Explain why this event makes it impossible to file on
Preview shows the opening and key sections. The full editable file is free to download below.
See it working with your own clients
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Send this from Remindoo
Save it once in Remindoo and send it from there. Store the wording as an email template, then use tokens so client names, company numbers and dates fill in automatically. Send it to one client or to a filtered group with bulk client emails. For requests that repeat, pair it with automated reminders and a recurring task so it goes out every period without anyone remembering.
What are the common mistakes?
- Applying after the deadline has passed
- Giving a generic reason like 'busy'
- Not having evidence ready to upload
- Asking for too much time
“Managing deadlines and tasks is much easier.”
Frequently asked questions
How much extra time can I get?
Usually up to 3 months, but the total filing period cannot exceed 12 months from the year end.
Is it free to apply?
Yes, there is no fee to apply for an extension.
What if I've already had an extension?
It is much harder to get a second extension, and you'd need even more compelling reasons.
Can my accountant apply for me?
Yes, if they have the company's authentication code.
Will HMRC automatically give an extension too?
No. You must deal with HMRC separately for Corporation Tax extensions; they have different rules.
What if my request is rejected?
You must file by the original deadline or face an automatic late filing penalty.
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Sources
Last updated 23 September 2026. General guidance, not regulatory advice.
Why a single client record matters
When client details, deadlines, documents and conversations are spread across inboxes and spreadsheets, time goes on searching instead of on client work.
One version of the truth
Everyone sees the same services, contacts, deadlines and notes for each client.
Accurate deadlines
Companies House sync brings in company details and filing dates, reducing manual errors.
Better client service
A full timeline means anyone can answer a client question with the history in front of them.
Secure document sharing
A client portal is safer than sending financial documents as email attachments.
Practical tips from UK practice
- Import companies from Companies House rather than typing details by hand.
- Record every service a client takes, so recurring work is created automatically.
- Add a short note after every important client call.
- Ask clients to upload documents through the portal rather than by email.
Related Remindoo features
Written and reviewed by Waqas Sagar ACA FCCA FMAAT, Chartered Accountant with 18+ years in practice. Founder and MD of Accotax, an ICAEW, ACCA and AAT regulated London practice that has served over 5,000 clients, and founder of Remindoo. Guidance is general; check current GOV.UK and professional body guidance for your firm.
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