When you run a UK limited company, there are yearly compliance responsibilities, and missing these can cost you more than just money. It can lead to penalties, stress, backlog in filing etc and the dreaded strike off action in some cases. You need to know the annual filing requirements for UK limited companies clearly and early if you want your business to remain organised and credible. All private limited companies (and most dormant or non-trading companies) are required to file annual accounts with Companies House, a confirmation statement with Companies House and a Company Tax Return with HMRC. These days matter, because each filing has its own deadline.
The first issue for many founders is that Companies House and HMRC are not the same thing. Many (Companies House) – deals with company information and statutory accounts. And, from 1 April 2026, if they once used that joint online filing service then the companies must in general use commercial software to send their annual accounts and Company Tax Returns to HMRC because that facility closed on 31 March 2026. That shift makes planning all the more critical for directors who used the older system.
What does a UK limited company need to file each year?
Most private limited companies need to handle these core filings every year:
- Annual accounts to Companies House
- Confirmation statement to Companies House
- Company Tax Return (CT600) to HMRC
- Corporation Tax payment, where tax is due
These duties apply after the end of the company’s financial year, and they do not disappear just because the business made no profit. In many cases, even a dormant company must still file annual accounts and a confirmation statement. Get details on Company Registration Service.
Annual accounts for Companies House
Your company’s annual accounts are prepared from its financial records at the end of the financial year. Statutory accounts usually include a balance sheet, a profit and loss account, notes to the accounts, and often a director’s report unless the company qualifies as a micro-entity. Some companies may also need an auditor’s report depending on size and circumstances. The balance sheet must include the printed name of a director and be signed by a director.
Deadline for filing annual accounts
For a private limited company, the usual deadline is:
- First accounts: 21 months after incorporation
- Annual accounts after that: 9 months after the end of the financial year
Small, micro-entity, and dormant companies
Some companies may file simpler accounts if they qualify as small, micro-entity, or dormant. Dormant companies still have filing duties. If a company is dormant according to Companies House and also qualifies as small, it may file dormant accounts and may not need to include an auditor’s report. Looking for a Company Registration in England?
Confirmation statement requirements
The confirmation statement confirms that the company information on the public register is correct and up to date. Every company, including dormant and non-trading companies, must file at least one confirmation statement every 12 months. Even if nothing changed during the review period, the company must still file it.
What information is reviewed?
Before filing the statement, companies should check details such as:
- directors and secretary
- people with significant control (PSCs)
- registered office address
- registered email address
- shareholder information
- SIC code and statement of capital, where relevant
Deadline and fee
The company must file the confirmation statement within 14 days of the end of its 12-month review period. The current fee is £50 online or £110 by paper form CS01.
Company Tax Return and Corporation Tax
In addition to Companies House filings, most limited companies must deal with HMRC every year. After the accounting period ends, the company normally needs to:
- pay Corporation Tax within 9 months and 1 day after the accounting period ends
- file the Company Tax Return (CT600) within 12 months after the accounting period ends
The accounting period for Corporation Tax is normally the same 12 months covered by the annual accounts, although exceptions can apply. Get details on Get details on Company Registration in London.
Annual filing deadlines at a glance
|
Filing requirement |
Authority |
Usual deadline |
Who needs to file? |
|
First annual accounts |
Companies House |
21 months after incorporation |
New private limited companies |
|
Annual accounts |
Companies House |
9 months after financial year end |
Most private limited companies |
|
Confirmation statement |
Companies House |
Within 14 days of review period end |
All companies, including dormant ones |
|
Corporation Tax payment |
HMRC |
9 months and 1 day after accounting period end |
Companies with tax due |
|
Company Tax Return (CT600) |
HMRC |
12 months after accounting period end |
Most limited companies required to file |
Penalties for late filing
Late filing is where many companies get caught out. The penalties differ depending on whether the late filing is with Companies House or HMRC.
Companies House late filing penalties for annual accounts
For private companies, the penalty bands are:
|
How late the accounts are |
Penalty |
|
Up to 1 month |
£150 |
|
More than 1 month up to 3 months |
£375 |
|
More than 3 months up to 6 months |
£750 |
|
More than 6 months |
£1,500 |
These penalties are doubled if accounts are filed late in 2 successive financial years. Also, not filing accounts or confirmation statements can be a criminal offence, and directors may face further consequences.
HMRC late filing penalties for Company Tax Return
HMRC applies separate penalties for a late CT600:
|
Time after deadline |
Penalty |
|
1 day late |
£200 |
|
3 months late |
Another £200 |
|
6 months late |
10% of unpaid tax added |
|
12 months late |
Another 10% of unpaid tax |
If the return is late 3 times in a row, the initial £200 penalties increase to £1,000 each.
A simple annual compliance process
To stay compliant, directors should build a practical routine rather than wait for reminders. A useful process looks like this:
1. Confirm your accounting reference date
This date drives your annual accounts deadline and often your Corporation Tax cycle too.
2. Keep bookkeeping updated
Accurate records make the annual accounts easier and reduce rushed corrections later.
3. Review company details before the confirmation statement
Check PSCs, directors, registered office, email address, share structure, and SIC code.
4. Prepare for software-based filing
Because the joint HMRC filing service closed on 31 March 2026, many companies now need suitable commercial software for HMRC filing.
5. File early, not at the last minute
Companies House states that delivery means actual receipt in the correct format. If documents arrive late or are rejected because they are incomplete, penalties can still apply. Looking for a Company Registration in UK?
Common mistakes UK limited companies make
Many filing problems come from avoidable issues, such as:
- assuming dormant companies have no filing duties
- mixing up HMRC deadlines with Companies House deadlines
- filing accounts late because the director relied only on the accountant
- forgetting the confirmation statement because “nothing changed”
- using outdated filing methods after the 2026 service closure
- submitting accounts with errors, missing signatures, or incomplete details
Why annual compliance matters
Having compliance provides more than just your filing record. It helps keep the firm in good standing, aids smoother banking and lending checks, comforts investors and suppliers and reduces the risk of disruptive penalty or Companies House action. In other words, annual filing obligations as a UK limited company are not just admin. They fall under responsible business management.
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Ensuring Timely Compliance with UK Company Filing Requirements
In the UK, for most founders of a private limited company, annual compliance is as close to being ‘fixed’ in terms of dates on the business calendar as it can get. FILE Company accounts to meet the deadlines, submit annual confirmation statements and pay Corporation Tax / submit a Company tax return. Dormant companies may still be required to file, and from 1 April 2026 the large increase in number of companies which will now need to use commercial software for filing with HMRC So by keeping track of deadlines, you’re avoiding penalties, preserving your company’s record and minimizing year-end stress.
FAQs on Annual Filing Requirements for UK Limited Companies
The majority of UK limited companies have a legal liability to submit yearly records or accounts to Companies House along with a confirmation statement, and file a Company Tax Return to HMRC.
Yes. If dormant however, companies generally are still required to file annual accounts and a confirmation statement.
Usually 9 months after the financial year end. First accounts are usually due 21 months after incorporation.
It is a submission that states your company information on the Companies House register is true and accurate.
At least annually, to be filed within 14 days after the end of the review period.The filing of a confirmation statement requires a fee.
The fee is £50 online or £110 by paper form CS01.
Typically 9 months and 1 day after the end of the accounting period.
Generally, 12 months after the end of the accounting period it covers.
Companies House can impose a fine of between £150 and £1,500 for private firms with the penalty doubling for repeat late filing.
After 1 day HMRC can charge £200, another £200 after 3 months and then add penalties based on tax owed after a further 6 & 12 months.
No. That service was discontinued on 31 March 2026. Businesses must generally file annual accounts and Company Tax Returns to HMRC using commercial software from 1 April 2026.
Directors are still responsible for filing them promptly — even if an accountant or an agent assists in preparing them. It is clear from Companies House guidance that the duty rests on the officers of the company.
