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My UK Company Has Been Dormant for Years: What Should I Do?

Ryan Patrick

• 10 min read
My UK Company Has Been Dormant for Years: What Should I Do?

If your UK limited company has been dormant for several years, you do not necessarily need to close it. A dormant company can remain on the Companies House register indefinitely, provided its legal and filing obligations are kept up to date. The important question is what you want to do with the company now.

You may want to restart it, keep it dormant for future use, or close it permanently. Before making that decision, you should check whether the company has kept up with its Companies House and HMRC obligations. A company can be dormant for Corporation Tax purposes while still having annual filing responsibilities at Companies House. Every company must continue filing annual accounts and a confirmation statement for as long as it remains registered. Here is what to check if your UK company has been dormant for years.

What Does a Dormant UK Company Mean?

“Dormant” can have slightly different meanings depending on whether you are dealing with Companies House or HMRC. For Companies House, a company is dormant if it has had no “significant” accounting transactions during the financial year. Certain transactions, such as Companies House filing fees, late filing penalties and money paid for shares when the company was incorporated, do not count as significant transactions for this purpose.

For Corporation Tax, HMRC generally considers a company dormant when it is no longer carrying out business activity. A newly incorporated company that has not started trading can also be dormant for Corporation Tax purposes. This distinction matters because a company can be dormant for tax purposes while still having obligations to Companies House.

Example

Suppose you incorporated ABC Consulting Ltd in 2021 but never started trading. The company may have remained dormant for Corporation Tax purposes. However, you should still have filed the required annual accounts and confirmation statements with Companies House. If those filings were missed for several years, the fact that the company never made money does not automatically remove the filing obligation.

First, Check Whether Your Company Is Still Active on Companies House

Before deciding what to do, search for the company on the Companies House register. Check:

  • Company status
  • Registered office address
  • Directors
  • PSC information
  • SIC code
  • Confirmation statement history
  • Accounts filing history
  • Outstanding filing deadlines
  • Any Companies House notices
  • Whether the company has already been dissolved or struck off

This is particularly important if you have not managed the company for several years. A company that you remember as “dormant” may have been struck off because required accounts or confirmation statements were not filed. Companies House can take steps to strike a company from the register where required filings are not delivered.

Step 1: Determine Whether Your Company Is Still Dormant

Do not assume that your company is dormant simply because you have not generated revenue. You need to consider what the company has actually been doing. For example, receiving certain income or carrying out business activities can mean the company is no longer dormant for Corporation Tax purposes.

On the other hand, some preliminary activities before a business begins trading, such as preparing a business plan or negotiating potential contracts, do not necessarily mean trading has started. If there has been activity through the company's bank account, payment platforms, investments, property, employees or other business operations, the position may need closer examination.

Why this matters

If you incorrectly treat a trading company as dormant, you could file the wrong type of accounts or fail to meet HMRC obligations. If you are unsure about the company's historical activity, reconstructing what happened before filing anything is often the safest approach.

Step 2: Check Your Companies House Filing History

Next, look at the company's filing history. You should establish whether the company has filed:

  1. Annual accounts for every required year
  2. Confirmation statements
  3. Director changes
  4. PSC changes
  5. Registered office changes
  6. Shareholder or share capital changes where applicable

A dormant company does not get a general exemption from filing. Companies House states that all companies, including dormant and non-trading companies, must file annual accounts. You must also file a confirmation statement at least once every 12 months, even where nothing about the company has changed.

Step 3: Deal With Any Missing Accounts or Confirmation Statements

If you discover that filings are overdue, do not simply start trading and ignore the historical problem. Find out exactly which filings are outstanding. Late accounts can result in financial penalties. For a private company, the standard late filing penalties currently range from £150 for accounts up to one month late to £1,500 where they are more than six months late.

Confirmation statement failures can also result in penalties and potentially strike-off action. If the company has several years of missing filings, the appropriate correction process depends on what should have been filed for each period. Do not assume that paying a penalty, if one exists, automatically resolves every outstanding filing obligation.

Step 4: Check Your HMRC Position

Companies House and HMRC are separate. You should therefore check whether HMRC has your company recorded as dormant for Corporation Tax. If you have already told HMRC that the company is dormant, you generally do not have to file another Company Tax Return unless HMRC asks you to or the company starts trading again.

However, if HMRC issued a notice requiring a Company Tax Return, that notice should not simply be ignored because you believe the company is dormant. HMRC guidance specifically provides for dormant companies that have received a notice to deliver a return. You should also check whether the company has ever been:

  • Registered for VAT
  • Registered for PAYE
  • Required to submit Corporation Tax returns
  • Issued with a Corporation Tax UTR
  • Subject to outstanding HMRC correspondence

If the company was VAT registered and you no longer intend to trade, VAT deregistration may be required. If you intend to restart, nil VAT returns may be required while the business remains dormant.

Step 5: Decide Whether to Keep, Restart or Close the Company

Once you understand the company's current position, there are usually three broad options.

Option 1: Keep the company dormant

This can make sense if you have a genuine reason to retain the existing company. You may want to preserve the company name, maintain an existing corporate structure, or simply keep the company available for a future business project.

But keeping it dormant does not mean forgetting about it. You will still need to meet ongoing Companies House obligations, including annual accounts and confirmation statements.

Option 2: Restart the company

If you want to use the company for a new business, you can generally restart it rather than incorporating another company. When a dormant company starts trading again, you must tell HMRC and register it for Corporation Tax again. HMRC's restart guidance also sets out the subsequent accounts and tax return deadlines. This is where a proper pre-restart review is valuable. Check the company's:

  • Name
  • Directors
  • PSCs
  • Registered office
  • SIC code
  • Share structure
  • Shareholders
  • Confirmation statement
  • Companies House filing history
  • HMRC position
  • Existing liabilities
  • Banking arrangements
  • Contracts and other commitments

For example, a company incorporated in 2020 may originally have been created for marketing services but now be intended for software development. The company may need its SIC information updated to accurately reflect its current activities.

Option 3: Close the company

If you no longer need the company, you may decide that maintaining it is unnecessary. A dormant company still requires ongoing compliance, so keeping an unwanted company registered indefinitely can create administrative work and potential costs.

Depending on the company's circumstances, voluntary strike-off may be an option. However, you should not assume that a company qualifies simply because it has been dormant for years. Before closing it, check for outstanding debts, assets, tax obligations, disputes, contracts and other matters. If the company has been trading or has unresolved obligations, professional advice may be appropriate before taking steps to close it.

What Happens If You Want to Restart a Company That Has Been Dormant for Years?

Restarting a dormant company is not simply a matter of opening a bank account and beginning to invoice customers. HMRC says you must tell it when the company starts trading again by registering for Corporation Tax.

You should also establish the date trading actually restarted because that date can affect your Corporation Tax accounting period and reporting obligations. After restarting, the standard HMRC guidance says you should:

  • Tell HMRC the company has restarted
  • Prepare statutory accounts
  • File accounts with Companies House within the applicable deadline
  • Pay Corporation Tax due within 9 months and 1 day of the accounting period end
  • File the Company Tax Return within 12 months of the accounting period end

Your Companies House accounting reference date does not necessarily change simply because the company starts trading again.

A practical example

Imagine your company has an accounting reference date of 30 September and you restart business activities on 1 May. HMRC explains that you can prepare statutory accounts covering the normal period to 30 September, while the Corporation Tax accounting period begins when trading restarts. This is one reason why the restart date and historical records should be documented carefully.

What If the Company Has Been Dormant Since Incorporation?

This is a common situation for founders. You might have incorporated a UK company, never launched the business and left it dormant for several years. That does not necessarily mean the company is defective. Companies that have never traded can remain dormant for Corporation Tax purposes until they begin trading.

However, Companies House filing obligations still apply. If the company has been maintained correctly, you may simply need to bring your current records up to date and decide whether to continue keeping it dormant or use it for the planned business.

What If You Have Lost Access to the Company?

Long periods of inactivity often create another problem: the founder may no longer have access to the company's Companies House account, authentication code or registered office correspondence. Start by checking the registered office shown on the Companies House register. If the registered office belongs to an old formation agent or address provider, update the address where appropriate and make sure important correspondence can be received.

You may also need to recover access to Companies House WebFiling and obtain the company's authentication code before completing certain online filings. Do not treat old company records as something that can simply be recreated from memory. Compare the company's actual Companies House record with your own documents before making corrections.

Should You Keep a Dormant Company for Future Use?

There is no universal answer. The decision should depend on why you want to retain the company and whether its current structure remains suitable. Consider: Keep it if:

  • You have a genuine future use for the company.
  • The company has been kept compliant.
  • The existing company name or structure is valuable to you.
  • There are no problematic historical liabilities or records.

Consider closing it if:

  • You no longer need it.
  • Maintaining it creates unnecessary administrative obligations.
  • The company's structure no longer fits your plans.
  • You have no realistic intention of using it.

For international founders, the decision may also involve practical considerations around banking, payment providers, business history, company ownership and future compliance. A company being old does not automatically make it more suitable for a new business, so the historical record should be considered before restarting it.

A platform such as IncorpUK, which supports global founders with UK company formation and ongoing company management, can also be useful as part of a broader administrative workflow, particularly where the founder manages the company remotely.

A Simple Dormant Company Recovery Checklist

Before restarting or closing a long-dormant UK company, work through this checklist:

Companies House

  • Confirm the company is still active on the register
  • Review the filing history
  • Check for overdue accounts
  • Check confirmation statement status
  • Verify directors
  • Verify PSC information
  • Check registered office
  • Check SIC code
  • Check shareholders and share capital

HMRC

  • Confirm Corporation Tax status
  • Check whether HMRC has issued a notice to file
  • Confirm the company's UTR
  • Check VAT registration
  • Check PAYE status
  • Review outstanding HMRC correspondence

Before restarting

  • Establish the actual trading start date
  • Update inaccurate company information
  • Decide whether the existing SIC code remains appropriate
  • Review the share structure
  • Review banking and payment requirements
  • Prepare accounting records
  • Register for Corporation Tax when trading resumes

Frequently Asked Questions

Can a UK company remain dormant for several years?

Yes. There is no general rule requiring a dormant company to start trading after a particular number of years. However, it must continue meeting the relevant Companies House filing obligations while it remains registered.

Do I need to close a company that has been dormant for years?

No. You can generally keep it dormant if you still have a legitimate reason to retain it. You can also choose to restart it or close it, depending on the company's circumstances.

Do dormant companies still need to file accounts?

Yes. All limited companies must file annual accounts with Companies House, including dormant companies. Dormant companies may qualify to file simpler dormant accounts where the relevant conditions are met.

Do dormant companies need to file confirmation statements?

Yes. Every company must file a confirmation statement at least once every 12 months, including companies that are dormant or not trading.

What happens if I start trading again?

You must tell HMRC that the company has restarted and register it for Corporation Tax. You will then have the relevant accounting and Corporation Tax filing obligations for the trading period.

Can I use an old dormant company for a new business?

Potentially, yes. Before doing so, review the company's ownership, directors, PSCs, SIC code, share structure, filing history, tax position and liabilities. An old company should be treated as an existing legal entity with a history, not simply as a blank company ready for a new business.

What if I missed several years of filings?

Do not ignore the problem. Review the company's Companies House filing history and identify every outstanding filing and penalty. The appropriate steps depend on what was missed and whether the company has actually remained dormant.

Can I close a dormant company instead of restarting it?

Often, yes, provided the company meets the requirements for the relevant closure procedure. Before applying to strike it off, check that there are no outstanding liabilities, assets or other circumstances preventing voluntary closure.

Conclusion

Having a UK company that has been dormant for years is not necessarily a problem. The real issue is whether the company has remained compliant and whether its current status still matches what you want to do with it. Start by checking Companies House. Review the filing history, accounts, confirmation statements, directors, PSCs, registered office and SIC code. Then check the company's HMRC position, including Corporation Tax, VAT and PAYE where relevant.

From there, choose between keeping the company dormant, restarting it or closing it. If you decide to restart, establish the actual date trading resumes and notify HMRC promptly. If you decide to keep it dormant, remember that dormant does not mean exempt from annual Companies House obligations. The longer a dormant company has been neglected, the more important it becomes to reconstruct its position before taking the next step. A careful review now can prevent an old filing problem from becoming a much larger compliance issue later.