Dormant Company Filing Guide: Accounts, Confirmation Statements and Tax Obligations

A dormant UK company may have no customers, no sales and no active business operations, but that does not mean it can be ignored. A company registered with Companies House continues to have legal filing obligations even when it is not trading. In most cases, directors must continue filing annual accounts and a confirmation statement, while the company’s obligations to HM Revenue and Customs (HMRC) depend on whether it is dormant for Corporation Tax purposes.

This distinction matters particularly for founders who incorporate a UK company before launching, overseas entrepreneurs holding a UK company for future business, and owners who have temporarily paused trading. This guide explains what a dormant company is, what you still need to file, the deadlines to watch, and what changes when the company starts trading again.

What Is a Dormant Company?

A dormant company is broadly a company that is not carrying on active business and has no significant accounting transactions during the relevant period. However, there are two different concepts of dormancy in the UK:

• Dormant for Companies House
• Dormant for Corporation Tax with HMRC

They are related but not identical. Companies House generally considers a company dormant when it has had no “significant” transactions during its financial year. Certain transactions are disregarded, including Companies House filing fees, late filing penalties and payments for shares taken by subscribers when the company was incorporated.

HMRC uses its own rules for Corporation Tax. A company may be dormant for tax purposes because it has not started trading, has stopped trading or otherwise has no active business for Corporation Tax purposes.

The Important Point: Calling your company “dormant” does not automatically remove its Companies House filing responsibilities.

Do Dormant Companies Have to File Accounts?

Yes. A UK limited company generally has to file annual accounts with Companies House even if it has never traded, has no income or is dormant. Dormant companies can usually take advantage of simpler dormant accounts where the Companies House requirements are met. A dormant company that qualifies as small does not generally need an auditor’s report.

This is one of the most common misconceptions among new founders. A company might have been incorporated only to reserve a name, prepare for a future venture or establish a UK corporate structure. Even if it has generated £0 in revenue, its annual filing obligations do not disappear.

What Are Dormant Accounts?

Dormant accounts are simplified statutory accounts prepared for a company that meets the Companies House definition of dormancy. For a company that has been dormant since incorporation, the filing process can be relatively straightforward. Companies House also provides a dormant company accounts filing route for qualifying companies.

If the company previously traded and subsequently became dormant, the accounting position can be more complicated, particularly where there are assets, liabilities or transactions from earlier periods.

When Are Dormant Company Accounts Due?

Dormant companies have the same filing deadlines for annual accounts as other private companies. For most private limited companies, annual accounts are due at Companies House nine months after the end of the company’s financial year. A newly incorporated company has a different deadline for its first accounts: normally 21 months from the date of incorporation.

For example, suppose a company's financial year ends on 31 December. Its annual accounts would normally need to reach Companies House by 30 September of the following year. Being dormant does not give the company an extra filing period. Companies House specifically confirms that the same filing deadlines and late filing penalties apply to dormant accounts.

A Practical Dormant Company Calendar

For a dormant UK company, it is useful to think about compliance as two separate annual tasks:

This separation prevents one of the easiest mistakes to make: assuming that filing dormant accounts automatically deals with Corporation Tax.

Confirmation Statements Still Apply

A dormant company must normally file a confirmation statement with Companies House at least once every year. The confirmation statement is essentially a check that the information Companies House holds about the company remains accurate. This obligation applies even where the company has not traded and nothing has changed. Depending on the company, the statement may involve confirming or updating information such as:

• Registered office details
• Directors
• Shareholders
• People with significant control (PSC)
• SIC code
• Share capital information
• Other company details covered by the confirmation statement process

The confirmation statement is different from annual accounts. Filing one does not replace the other.

How Often Must a Confirmation Statement Be Filed?

A company must file a confirmation statement at least once every 12 months. The review period normally ends 12 months after either the previous confirmation statement date or, for the first statement, the company's incorporation date. Companies House allows the statement to be filed up to 14 days after the review period ends. A company can also file early, which starts a new review period.

Does a Dormant Company Need to Pay Corporation Tax?

Not necessarily. This is where the distinction between Companies House and HMRC becomes particularly important. A company that is dormant for Corporation Tax generally does not have Corporation Tax to pay because it is not active or liable for Corporation Tax for that period. However, if the company has already filed a Company Tax Return or HMRC has issued a notice requiring one, the company may still need to submit the return unless HMRC’s rules allow otherwise.

Once HMRC has been told that a company is dormant for Corporation Tax, it generally does not need to submit further Company Tax Returns unless HMRC sends another notice to deliver one. However, the company still has to file its annual accounts and confirmation statement with Companies House.

Why This Matters for Overseas Founders

Consider an entrepreneur living outside the UK who incorporates a UK limited company but does not start selling anything. The company might be dormant for Corporation Tax while still being required to file dormant accounts and a confirmation statement with Companies House. This is why simply saying “my UK company isn't trading” is not enough. You need to establish which authority you are dealing with and what filing obligation applies.

What Transactions Can Affect Dormant Status?

A dormant company is not necessarily a company with absolutely no movement of money. Companies House allows certain transactions to be disregarded when determining whether a company is dormant. These include some Companies House fees, late filing penalties and the original payment for shares by subscribers.

That does not mean every transaction is harmless. For example, a company that begins paying suppliers, receiving customer income, paying salaries or undertaking other meaningful business transactions may no longer qualify as dormant for Companies House purposes. This is why directors should not automatically file dormant accounts simply because the company has not made a profit.

Dormant vs Non-Trading: What's the Difference?

“Non-trading” and “dormant” are often used interchangeably in everyday conversation, but they should not be treated as identical legal concepts. A company can have stopped trading but still have accounting transactions or assets that require proper treatment. Likewise, a newly incorporated company may not yet have started trading and may be dormant for Corporation Tax purposes.

The safest approach is to look at the company's actual activities and transactions rather than its label. If you are unsure whether a payment, asset or transaction means the company is no longer dormant, professional accounting advice can prevent an incorrect filing.

What Happens If You Forget to File?

Dormancy does not protect a company from late filing penalties. Companies House can impose penalties when accounts are filed late. For private companies, the current penalties are:

The penalty can be doubled if accounts are late for two consecutive years.

There can also be more serious consequences. Failure to keep up with statutory filings can ultimately contribute to a company being struck off the register. For a company that has never traded, paying a late filing penalty can be particularly frustrating because the administrative cost may exceed the company's entire financial activity. The solution is simple: put the deadlines in a compliance calendar from the moment the company is incorporated.

What If Your Dormant Company Starts Trading?

The company's obligations change when it becomes active. If a dormant company starts trading again, HMRC needs to be informed so that Corporation Tax obligations can be reinstated. The company will then need to prepare appropriate accounts and Company Tax Returns for its active period.

For example, imagine a company has been dormant until 1 May and begins selling services on that date. The director should not continue filing dormant accounts indefinitely. The company needs to recognise the point at which it became active and account for the relevant transactions. HMRC explains that a company restarting business activities needs to register for Corporation Tax again and subsequently meet its accounts and tax return obligations.

Dormant Company Checklist for Founders

If you own a dormant UK company, use this practical checklist:

Companies House

• [ ] Check the company's accounting reference date.
• [ ] Identify the annual accounts deadline.
• [ ] Confirm whether the company qualifies for dormant accounts.
• [ ] File annual accounts on time.
• [ ] Check the confirmation statement date.
• [ ] Review company information before filing the confirmation statement.
• [ ] Keep Companies House records up to date.

HMRC

• [ ] Determine whether the company is dormant for Corporation Tax.
• [ ] Check whether HMRC has issued a notice to file a Company Tax Return.
• [ ] Notify HMRC when the company becomes active again.
• [ ] Review VAT and payroll obligations if the company previously had them.

Internal Records

• [ ] Keep appropriate accounting records.
• [ ] Record transactions even when the company is dormant.
• [ ] Keep evidence supporting the company's dormant status.
• [ ] Review the position before starting any commercial activity.

For global founders, this last point is particularly important. A UK company can remain dormant while its owner is preparing a product, looking for investors or planning a future UK launch, but the company should not simply disappear from the founder's compliance calendar.

Can You Keep a Dormant Company for Years?

Yes, a company can remain dormant for an extended period, provided it continues to meet its legal and tax obligations. The real question is whether keeping it makes commercial sense. A dormant company may be useful if a founder intends to launch later, preserve a corporate structure or maintain a particular company name. But unnecessary companies still create administrative responsibilities.

For founders using a UK company formation and management platform such as IncorpUK, dormant status can therefore be part of a broader company maintenance strategy rather than an excuse to stop managing the company.

Frequently Asked Questions

Do dormant companies have to file annual accounts?

Yes. UK limited companies generally have to file annual accounts with Companies House even when dormant or not trading. Dormant companies may qualify to file simplified dormant accounts.

Does a dormant company need to file a confirmation statement?

Yes. Dormant and non-trading companies must generally file a confirmation statement at least once every 12 months.

Does a dormant company pay Corporation Tax?

Usually not while it is genuinely dormant for Corporation Tax purposes. However, HMRC filing obligations can depend on whether the company has previously filed a tax return or received a notice to deliver one.

Is a dormant company the same as a non-trading company?

Not necessarily. Companies House and HMRC apply different concepts of dormancy, and a company that is not actively trading can still have transactions or obligations that need to be considered.

What happens if dormant accounts are filed late?

The same late filing penalties that apply to other private company accounts can apply to dormant accounts. Current penalties range from £150 for up to one month late to £1,500 when accounts are more than six months late.

Can a dormant company have a bank account?

It can, but the existence of a bank account does not by itself determine whether the company is dormant. The actual transactions and activity need to be considered under the relevant Companies House and HMRC rules.

Do dormant companies need an accountant?

Not necessarily. Some dormant companies have very simple filing requirements. However, an accountant can be valuable where the company previously traded, owns assets, has complex transactions, has overseas owners or is approaching the point of restarting business.

What happens when a dormant company starts trading?

The company needs to move from its dormant compliance position to active business reporting. HMRC should be informed when the company restarts trading, and the appropriate accounts and Company Tax Returns must then be prepared.

Final Takeaway

A dormant UK company may be inactive commercially, but it is not invisible from a compliance perspective. The core rule is straightforward: dormant does not mean exempt from filing. Companies House generally still expects annual accounts and a confirmation statement. HMRC has separate rules for Corporation Tax dormancy, and those obligations can change as soon as the company begins trading again.

For founders, especially non-UK residents who establish a company before launching, the best approach is to treat dormancy as a managed status. Know your accounting reference date, track your confirmation statement deadline, understand your HMRC position and keep proper records. A dormant company can be a useful vehicle for future plans. But keeping it compliant is what preserves that flexibility.