Closing a company and final tax returns

Company closure requires a review of final Corporation Tax obligations as well as Companies House steps. Identify when trading ceased and whether other income or transactions continue. Final accounts, returns, payments and possible refunds need to be addressed before the company is dissolved.

Review asset disposals, outstanding debts, director loans and available claims with the accountant. Do not assume that the last customer invoice is the final taxable event. Keep access to records and correspondence so later questions or repayment issues can be handled properly.

Map the final activity rather than only the closure form

Record when trading ceased and what happened afterwards. The company may still collect debts, sell assets, earn interest or settle obligations. Those events can affect accounts and tax even after the last customer invoice. Keep a dated schedule and ask the accountant to identify the relevant final periods. GOV.UK's closure guidance addresses final affairs before dissolution. ^[1]

Distinguish ceasing trade, becoming dormant, entering liquidation and being dissolved. They are not interchangeable dates or tax conclusions. A Companies House application does not itself establish that every HMRC obligation is complete. Use Company strike-off: checking suitability for strike-off planning and Closing a solvent company: options to discuss for solvent closure options, with specialist input where the company cannot meet its obligations.

Prepare final accounts and tax evidence

Reconcile the books through the relevant dates and collect documents for asset disposals, director balances, debts and final expenses. Review losses and possible claims with the accountant. Do not assume all remaining costs are deductible or all unused losses create a repayment. Keep the facts supporting each proposed treatment and identify unresolved amounts before distributing the remaining cash.

Check whether HMRC requires returns for the relevant periods and prepare the appropriate computations. The Company Tax Return guidance explains that a notice to deliver remains important even where no tax is payable. ^[2] Do not ignore a notice merely because the company describes itself as closed or inactive. Record the adviser action and any HMRC confirmation needed to resolve it.

Deal with payment, refunds and company assets

Calculate outstanding tax and identify how it will be paid. Keep the correct references and evidence of allocation. Review expected repayments before dissolution, because a refund due to the company is an asset that needs proper handling. Do not close the last bank account while necessary receipts or payments remain unresolved without an agreed alternative appropriate to the process.

Review distributions separately from settling company liabilities. Keep evidence of who received assets or cash and the basis of each transfer. A director's personal use of an asset during closure can raise further questions. Avoid informal transfers intended to empty the company quickly before the accountant has assessed final tax and other obligations.

Preserve filing capability and correspondence

Use current submission routes. HMRC's former joint accounts and tax return service closed in March 2026, and its current guidance describes commercial software and limited alternatives. ^[3] Keep suitable access and agent authority long enough to complete necessary filings or corrections. A cancelled software subscription can create avoidable difficulty when the final return requires another document or adjustment.

Use Keeping records after a company closes for record custody after closure. Retain final accounts, computations, returns, payments and correspondence in readable form. Appoint someone able to handle legitimate later questions without relying on a company mailbox that will disappear. Apply appropriate retention and privacy controls rather than either destroying all evidence or keeping every duplicate indefinitely.

For Corporation Tax return support, provide the cessation timeline, closure proposal, current tax records and outstanding assets or claims. Ask for a sequenced plan showing returns, payments, repayments and record handover before dissolution. Keep unresolved matters visible until they are actually addressed. The final tax position should follow the company's real transactions and procedure, not an assumption that submitting a closure application automatically ends every tax responsibility.

Keep a route for a later HMRC question

Before closing business email and software accounts, identify how the responsible person will receive and answer correspondence about the final periods. Preserve the filed return, computation, accounts and supporting records in a usable format. Confirm what the agent will retain and how the company or appointed custodian can obtain it.

Record unresolved refunds, amendments or queries with their owners and next steps. Do not assume that submitting a final return ends every administrative matter immediately. Coordinate this record with the proposed closure process and professional advice. A clear post-trading contact and archive arrangement helps prevent a later query from being missed because the only notification reached an abandoned mailbox or the evidence remained inside a subscription that had already been cancelled.

Illustrative scenario

A company stops providing services but later sells equipment and receives bank interest. The accountant reviews those transactions and the relevant tax periods before finalising closure work. The directors do not mark the company tax file complete solely because trading revenue has ended.

Preparation checklist

• Confirm cessation and any continuing activity dates.
• Review assets, loans, income and final expenses.
• Complete required returns, payments and claim assessments.
• Plan refunds, correspondence and secure record retention.