Does a Dormant Company Need to File a Tax Return?
When a business temporarily ceases its operations, it may qualify as a dormant company. While dormancy is often a short-term status, understanding the tax obligations during this period is crucial.

Many UK business owners are unsure whether a dormant company needs to file a tax return. This comprehensive guide breaks down everything you need to know.
Dormant Company Tax Filing: Key Conditions
Even if your company isn't actively trading, you still have essential reporting duties to both Companies House and HMRC. Here's a detailed look at what’s required:
1. Corporation Tax Returns
Notify HMRC of Dormant Status: If your company has genuinely ceased all trading and income-generating activities (beyond minimal statutory fees), you must inform HMRC of its dormant status. You can do this online via your HMRC business tax account or by writing to HMRC’s Corporation Tax office. This notification is vital to prevent HMRC from expecting a Corporation Tax return.
Corporation Tax Returns for Previously Active Companies: If your company engaged in any trading or business activity during its accounting period (even for a short time before becoming dormant), you must file a Corporation Tax return for the entire accounting period. This return will cover the income and expenses incurred during the active period, up to the date of dormancy.
No Corporation Tax Return for Fully Dormant (After Notification): If your company has been dormant for the entire accounting period and you have notified HMRC, you generally do not need to file a Corporation Tax return. However, keeping records to prove dormancy is essential.
2. Annual Filing Obligations with Companies House:
Annual Accounts (Dormant Accounts): All registered companies, including those dormant for the entire accounting period, must file annual accounts with Companies House. For dormant companies, these are simplified "dormant accounts," typically showing a nil balance sheet or minimal assets/liabilities related to the company's formation. These accounts confirm the company's financial position (or lack thereof).
Confirmation Statement (Previously Annual Return): Every UK registered company, including dormant ones, must file a confirmation statement at least once every 12 months. This statement confirms that the information Companies House holds about your company (registered office, directors, shareholders, etc.) is accurate.
3. Understanding the Difference: HMRC vs. Companies House Dormancy:
It’s critical to understand that HMRC and Companies House have different criteria for assessing dormancy. Filing dormant accounts with Companies House does not automatically mean HMRC considers your company dormant for Corporation Tax purposes.
HMRC’s assessment for Corporation Tax hinges primarily on whether any trading activity or income was generated during the accounting period. Even if you file dormant accounts with Companies House, HMRC will still expect a Corporation Tax return if the company was active at any point in that period and they haven't been formally notified of dormancy.
Scenarios: When Dormant Companies Must File a Tax Return
Let’s consider some common scenarios to understand when a dormant company need to submit a tax return:
Scenario 1: A Newly Incorporated Dormant Company
Sarah incorporated her company but has not yet begun trading
- She must notify HMRC of her dormant status
- She needs to file dormant accounts with Companies House
- She does not need to file a Corporation Tax return (no trading activity)
Scenario 2: A Company That Stopped Trading Mid-Year
John’s company traded for six months and then ceased operations
- He must file a Corporation Tax return covering the entire financial year, including the months his company was dormant
- He must also submit annual accounts and a confirmation statement
Scenario 3: A Company with Minor Transactions Only
Emma’s company had no trading income but paid a Companies House filing fee
- She must file dormant accounts with Companies House
- She does not need to file a Corporation Tax return for the year (no significant trading)
Key Considerations for Managing Your Dormant Companies:
Maintain Comprehensive Records: Keep detailed records of all transactions, even seemingly minor ones. This documentation can be vital for proving your company’s dormant status to HMRC if questioned.
Promptly Notify HMRC of Dormancy: Inform HMRC in writing or through your online account as soon as your company becomes dormant to avoid unnecessary tax return requests and potential penalties. Include your company registration number.
Use Dormant Tax Calculators: These tools can be a helpful initial guide to assess whether your company needs to file a tax return based on its activity. However, always remember that each situation has nuances, and these calculators should not replace official HMRC guidance or professional advice.
Seek Professional Advice When Uncertain: If you are unsure about any aspect of your dormant company’s filing obligations, consulting an accountant or tax advisor is strongly recommended. They can provide tailored advice based on your specific circumstances and ensure full compliance.
Penalties for Non-Compliance: What You Need to Know
If you fail to comply with dormant company filing requirements, you risk facing penalties:
Late Filing of Dormant Accounts with Companies House: Failure to file accounts by the deadline can result in escalating fines, ranging from £150 for the first delay up to £1,500 for significant delays.
Failure to File a Corporation Tax Return (If HMRC Considers Active): If HMRC believes your company was active and you fail to submit a Corporation Tax return, you can face penalties, interest charges on any unpaid tax, and potentially even further action.
To avoid these penalties, always ensure that your company meets its reporting obligations and seeks professional help when needed.
Bottom Line
Determining whether your dormant company needs to file a tax return involves assessing its trading history and understanding the separate requirements of HMRC and Companies House. Accurate record-keeping and timely communication with HMRC are crucial to avoid penalties.
Need Expert Guidance? Taxd offers specialist support for dormant companies, ensuring you meet all your filing obligations accurately and efficiently. Contact us today for peace of mind.
FAQs
1. What is a dormant company?
A dormant company is one that has no significant accounting transactions during its financial year. Significant transactions generally exclude statutory filing fees (like those paid to Companies House). This can include companies that have never traded or those that have ceased all trading activities.
2. Does a dormant company need to file a Corporation Tax return?
A dormant company that has not traded or had any financial transactions does not need to submit a tax return. However, previously active companies must file a return for the period they were operational, even if they are now dormant.
3. What documentation does a dormant company need to submit?
All dormant companies must file annual dormant accounts and a confirmation statement with Companies House each year. Dormant accounts are simplified and typically only require balance sheet information.
4. Can dormant companies face penalties?
Yes. Dormant companies that fail to file their accounts on time can incur fines starting at £150, rising to £1,500. If HMRC deems the company active, penalties for failing to file a tax return may apply as well.
Like the article? Share it with your friends!