Late filing penalties from Companies House and HMRC, and how to avoid them

What You Must File and Why It Matters

As a director of a UK limited company, you have legal filing obligations to two separate government bodies: Companies House and HM Revenue and Customs (HMRC). It is a common and costly mistake to confuse them. Companies House is concerned with corporate governance and transparency. Your filings with them, such as annual accounts and the confirmation statement, become part of the public record, allowing suppliers, lenders, and customers to assess your company's reliability. The purpose is to ensure the company is being run correctly and its details are up to date. These requirements apply to all limited companies, including those that are dormant or not currently trading.

HMRC, on the other hand, is responsible for collecting taxes. Your filings with them, including the Company Tax Return (CT600), VAT returns, and PAYE submissions for employees, are confidential and used to calculate your company's tax liabilities. The deadlines and requirements for HMRC are entirely separate from those of Companies House. For instance, you must file annual accounts with Companies House and also submit a Company Tax Return to HMRC, often for a similar financial period, but they are two distinct submissions with different deadlines and penalty structures. Understanding this separation is the first step to avoiding penalties.

The consequences of failing to meet these obligations are not trivial. Both organisations operate penalty systems that are largely automatic. Missing a deadline, even by one day, will trigger a financial penalty without any initial human intervention. These penalties are designed to be punitive and escalate over time. Beyond the financial cost, late filings are a red flag on your public record, potentially damaging your company's credit rating and reputation. For directors, persistent failure can lead to prosecution and disqualification. Therefore, treating these filings as a top priority is essential for the health and legal standing of your business.

• **Annual Accounts:** A snapshot of your company's financial health, filed with Companies House.
• **Confirmation Statement:** Confirms your company's details (directors, shareholders, registered office) are correct on the public record. Filed with Companies House.
• **Company Tax Return (CT600):** Used to calculate and report your Corporation Tax liability to HMRC.
• **VAT Returns:** If VAT registered, these are periodic returns submitted to HMRC detailing VAT charged and reclaimed.
• **PAYE Submissions (RTI):** If you employ staff, you must report pay and deductions to HMRC on or before each payday.

Worth knowing: Missing a deadline for either Companies House or HMRC triggers automatic penalties, so track both sets of dates diligently as they are entirely separate.

Companies House Penalties: The Cost of Late Annual Accounts

Companies House imposes automatic civil penalties if you file your company's annual accounts after the deadline. There is no grace period; being one day late triggers the first penalty. This penalty is levied against the company itself and the amount depends on how late the accounts are submitted. It’s crucial to understand that these fines are not discretionary. You cannot call and ask for a waiver unless you have a legally recognised 'reasonable excuse' and follow a formal appeal process after filing. The system is designed to enforce compliance strictly across the millions of companies on the register.

The penalty system is structured to escalate sharply with the length of the delay. While a short delay results in a manageable fine, letting it slide for several months can lead to a substantial liability of £1,500. Furthermore, if your company files its accounts late for two consecutive financial years, the penalties for the second year are automatically doubled. For example, a penalty that would have been £375 becomes £750. This punitive measure targets companies with a consistent pattern of non-compliance. While the penalty is the company's debt, directors are legally responsible for ensuring accounts are filed on time and can face prosecution in serious cases of willful default.

Pinpointing Your Companies House Filing Deadlines

To avoid penalties, you must know your precise filing deadlines. For a private limited company, the deadline to file your annual accounts is 9 months after your financial year ends. This year-end is known as your Accounting Reference Date (ARD). For a new company, the first ARD is automatically set as the last day of the month in which the company was incorporated, one year on. This creates a unique 'first year' challenge: your first accounts will cover a period longer than 12 months, and the filing deadline is 21 months from your incorporation date. For all subsequent years, the standard 9-month deadline applies.

Your other key Companies House deadline is for the confirmation statement. This is not an accounting document but a snapshot confirming your company's data is correct. You must file it at least once every 12 months. The due date is 14 days after the end of your 'review period'. The review period ends one year after your incorporation date or one year after the date of your last confirmation statement. A common mistake is to confuse this with the accounts deadline. You can file a confirmation statement at any time during the review period, which resets the clock for the next 12 months. The new digital filing fee is £50 as of 2025.

You should never guess these dates. The definitive source is the Companies House public register. You can search for your company online for free and view its 'Filing history' and 'Overview' tabs. These will clearly state your next accounts due date and next confirmation statement due date. You can also sign up for the Companies House email reminder service, which sends automated alerts when your deadlines are approaching. Relying on this service is helpful, but the legal responsibility to know the dates remains with the directors, so it's wise to also keep your own calendar.

• **First Accounts Deadline:** 21 months after the date of incorporation.
• **Subsequent Accounts Deadline:** 9 months after your Accounting Reference Date (ARD).
• **Confirmation Statement Deadline:** Within 14 days of your 12-month review period's end date.
• **Finding Your Dates:** Use the free Companies House online search for your company's specific deadlines.
• **Filing Fee:** The fee for a confirmation statement filed digitally is £50.

The Financial Sting: HMRC's Corporation Tax Penalties

HMRC's penalty regime for Corporation Tax is entirely separate from Companies House. It has two components: penalties for filing your Company Tax Return (CT600) late, and interest charges for paying your Corporation Tax late. The filing deadline for your CT600 is 12 months after the end of your 'accounting period for Corporation Tax'. This period normally aligns with the financial year covered by your annual accounts, but can differ, especially in the first year of trading. Confusing the 9-month accounts filing deadline with the 12-month tax return filing deadline is a frequent error that can lead to unexpected penalties.

The penalty for late filing of the CT600 is £100, applied the day after the deadline. If the return is still outstanding after three months, another £100 penalty is issued. These are fixed penalties. However, if the return is six months late, HMRC will estimate the Corporation Tax liability and add a tax-geared penalty of 10% of the unpaid tax. A further 10% penalty is added if the return is 12 months late. These penalties are cumulative. For a company with a significant tax bill, the penalties for being six months late can quickly escalate into thousands of pounds.

Separate from filing penalties, HMRC charges interest on late tax payments. The deadline to pay your Corporation Tax is usually 9 months and one day after the end of your accounting period – which is before your tax return is even due. This counter-intuitive timeline catches many new directors out. If you don't pay enough tax by this date, HMRC charges daily interest on the underpayment. The interest rate is variable and set by HMRC. To comply, you must estimate your tax liability and pay it by the due date, then confirm or correct the amount when you file your CT600 later.

Worth knowing: HMRC's tax payment deadline is typically *before* the tax return filing deadline, and its penalties are additional to any from Companies House.

Payroll and VAT: The High Frequency Filing Traps

For companies that are employers or are VAT registered, compliance involves much more frequent filings, creating more opportunities to incur penalties. If you employ anyone, including directors, you must operate a PAYE (Pay As You Earn) scheme and report payroll information to HMRC using Real Time Information (RTI). A Full Payment Submission (FPS) must be sent on or before each payday. Failure to file an FPS on time results in monthly penalties that depend on the number of employees you have. A company with just one director on the payroll can face a £100 penalty for every month a report is late.

In addition to filing penalties, there are also penalties for paying your PAYE tax and National Insurance Contributions (NICs) late. For the 2025/26 tax year, this includes the employer's Class 1 NIC at a rate of 15% on earnings above the secondary threshold of £5,000. Late payment penalties are charged as a percentage of the amount that is late and increase with the number of defaults in a tax year. Note that some small businesses may be eligible for the Employment Allowance, which is £10,500 for the 2025/26 tax year and can be used to offset employer NIC liabilities, but this does not excuse you from filing or paying on time.

VAT compliance has its own penalty system. For VAT periods starting on or after 1 January 2023, a points-based system applies to late VAT returns. For each return you file late, you get one penalty point. Once you reach a points threshold (4 points for quarterly returns), you receive a £200 financial penalty, and another £200 for each subsequent late filing while at the threshold. Separately, there are penalties for paying your VAT bill late. The later you pay, the higher the penalty percentage becomes, calculated on the outstanding tax. With the VAT registration threshold at £90,000 from 1 April 2025, more growing businesses will need to master these rules.

Appealing a Penalty: When and How to Make Your Case

While penalties are issued automatically, you do have the right to appeal if you believe you have a 'reasonable excuse' for the failure. A reasonable excuse is a sudden, unexpected, and unforeseeable event that was beyond your control and made it impossible for you to file on time. Examples that Companies House and HMRC may accept include the death or sudden, serious illness of a director or key person close to the deadline; a natural disaster that destroyed your records; or a prolonged failure of the official government filing portal just before the deadline. Crucially, the circumstances must be exceptional.

It is equally important to understand what is not considered a reasonable excuse. Common rejected reasons include: forgetting the deadline, not understanding the rules, being too busy, lacking the funds to pay an accountant, postal delays when you mailed documents close to the deadline, or blaming your accountant. The legal responsibility for timely filing always rests with the directors, not their agents. If you hire an accountant and they fail to file on time, you must pay the penalty and may then have a separate professional negligence claim against the accountant, but it will not invalidate the penalty itself.

If you believe you have a valid reason, you must act correctly. The first step, always, is to file the overdue document or return. No appeal will be considered until you have brought your company's affairs up to date. Once you have filed, you can submit your appeal, usually online or by post, following the instructions on the penalty notice. You must provide a detailed explanation of the circumstances and include strong, objective evidence. This could be a doctor's letter (without confidential medical details), a death certificate, or screenshots of error messages from the filing service. A clear, evidenced timeline of events is critical to a successful appeal.

1. 1

   File the overdue document immediately; no appeal is possible until you have done this.

2. 2

   Gather clear, dated evidence to support your claim, such as a hospital admission letter, death certificate, or evidence of a major IT failure of the official service.

3. 3

   For a Companies House penalty, use their online appeal service or write to the Late Filing Penalties department, clearly stating your company name, number, and the reason for appeal.

4. 4

   For an HMRC penalty, use the online service link provided on the penalty notice or write to the office that issued the penalty, providing your tax reference number.

5. 5

   Clearly explain what the unforeseeable event was, how it prevented you from filing, and what steps you took to file as soon as the event passed.

6. 6

   If the initial appeal is rejected, you have the right to request an internal review or appeal to an independent tax or company law tribunal, though professional advice is strongly recommended at this stage.

Staying Ahead: Practical Steps to Guarantee Compliance

The most effective way to deal with late filing penalties is to prevent them from ever occurring. This requires a proactive and organised approach to your company's administration from day one. Start by creating a master calendar of all your key filing and payment deadlines for Companies House and HMRC. Include dates for your annual accounts, confirmation statement, CT600 return and payment, VAT returns and payments, and PAYE submissions and payments. Set multiple reminders for each date, such as 3 months, 1 month, and 1 week before the final deadline. This gives you ample time to prepare information and resolve any issues.

Leverage technology to stay organised. Modern accounting software can automate much of your bookkeeping, making it easier to generate financial statements when needed. More importantly, you should always file electronically where possible. Online filing with Companies House and HMRC is faster, more secure, and provides you with an instant digital receipt as proof of submission. Aim to file at least a week or two before the deadline. This provides a buffer to handle any unexpected technical problems, such as your internet connection failing or the government portal having temporary issues on the final, busiest days.

Consider professional help. While directors are ultimately responsible, a good accountant can be invaluable. They will manage your deadlines, prepare your accounts and tax returns correctly, and file them on your behalf. When engaging an accountant, ensure you have a formal letter of engagement that clearly outlines their responsibilities and deadlines. Don't simply assume they are handling everything. Maintain regular contact, provide them with your records in a timely manner, and ask for confirmation once a filing has been made. For a lower-cost option, sign up for the free email reminder services offered by both Companies House and HMRC.

• Use a digital calendar to track all key Companies House and HMRC deadlines for your specific company.
• Sign up immediately for the free email reminder services from both Companies House and HMRC.
• Keep your financial records organised and up-to-date throughout the year using accounting software.
• Plan to prepare and submit all filings at least two weeks before the deadline to avoid last-minute issues.
• Formally engage a reputable accountant and clarify their responsibilities in a written agreement.
• Always file electronically to get an instant acknowledgement of submission.
• Ensure your company's contact details, especially the email address at Companies House, are always current.

More Than Just Fines: The Hidden Costs of Late Filing

The direct financial cost of a penalty is often just the beginning. A poor filing history has wider, more damaging consequences for your business. Your company's filing record with Companies House is public. Lenders, suppliers, and even potential customers use this information to assess your company's credibility and financial health. A record of late accounts filings acts as a significant red flag, suggesting poor internal management. This can directly harm your company's credit score, making it much more difficult and expensive to secure business loans, asset finance, or even favourable terms from suppliers.

Persistent failure to comply can lead to more severe enforcement action. If a company fails to file its accounts or confirmation statement, Companies House may assume the company is no longer trading and begin the process to have it 'struck off' the register. If this happens, the company legally ceases to exist, and its assets, including any money in its bank account, become the property of the Crown (bona vacantia). Reinstating a company is a complex and expensive legal process. In cases of willful and repeated non-compliance, directors themselves can be prosecuted in the criminal courts and, if convicted, face a criminal record and an unlimited fine.

Furthermore, directors of companies that are struck off for non-compliance, or of insolvent companies with a poor compliance history, can face director disqualification proceedings. If disqualified, an individual is banned from being a director of any UK company, or being involved in the promotion, formation, or management of a company, for a period typically ranging from 2 to 15 years. This can have a devastating impact on your career and professional reputation, going far beyond the initial penalty notice.

Special Cases: Dormant and Closing Companies

A common misunderstanding is that a 'dormant' company has no filing obligations. This is incorrect and leads to avoidable penalties. A company is dormant for Companies House purposes if it has had no 'significant accounting transactions' during its financial year. However, it is still a legally registered entity and must file a confirmation statement every year (fee £50) and submit dormant accounts (using form AA02/DCA). Failing to file dormant accounts on time results in the exact same late filing penalties as a multi-million-pound trading company. You must also separately inform HMRC that your company is dormant for Corporation Tax so they do not expect a Company Tax Return.

Similarly, simply deciding to cease trading does not end your legal duties. A company continues to exist with all its filing obligations until it is formally dissolved. If you wish to close your company, you must complete the required filings up to the point of closure. You cannot just abandon it. The formal process is to apply for a 'voluntary strike-off' (using form DS01). However, Companies House will not accept a strike-off application if the company has outstanding filings or other liabilities. Attempting to walk away will simply result in escalating penalties, a poor compliance record, and potential action to strike the company off involuntarily, which has more severe consequences for directors.

Worth knowing: A company's filing duties only cease on the date it is officially dissolved, not when it stops trading or becomes dormant.

Common questions

Official sources & further reading

This guide draws on the official guidance below. Rules, fees and individual circumstances can change; check the relevant source before acting.

• Companies House: Late filing penalties
• HMRC: Corporation Tax penalties
• Companies House: Appeal a late filing penalty
• HMRC: VAT penalties and interest

General UK information, primarily for private companies limited by shares. This is not personalised legal, tax or financial advice. An accountant or solicitor can help apply the rules to your situation.