CT600 Tax Return Filing in Chalgrove: Prepare and Submit Your Company Tax Return to HMRC

A CT600 is the formal name for the Company Tax Return that a UK company submits to HMRC to report its Corporation Tax position for an accounting period. It sets out the company's income, allowable deductions, taxable profit and any Corporation Tax due, along with supporting computations and information HMRC requires. The CT600 is a tax return, not a set of accounts, and it is submitted to HMRC rather than to Companies House.

A company will normally need to file a CT600 if HMRC has issued a notice to deliver a Company Tax Return, or if the company has Corporation Tax obligations for the period in question. Whether a return is required, and what it needs to include, depends on the company's own circumstances — its trading activity, income, reliefs and previous filings. It is always worth checking your position with an accountant rather than assuming either that a return is or is not needed, since the responsibility for filing rests with the company.

Yes. Statutory accounts are prepared under an accounting framework and filed with Companies House, while the CT600 is a Company Tax Return submitted to HMRC. They are separate filing obligations with separate recipients and different purposes. That said, the two are closely linked: the figures in your statutory accounts usually provide the starting point for the Corporation Tax computation that sits behind the CT600, which is why preparing them consistently and carefully matters.

They are related but not the same thing. The Corporation Tax computation is the working document that starts with your accounting profit and makes the necessary tax adjustments to arrive at taxable profit and the resulting Corporation Tax liability. The CT600 is the return form on which those figures are reported to HMRC. In practice, a well-prepared CT600 is supported by a clear computation that explains each adjustment made.

It may well do. Being a micro-entity affects your accounting and reporting options, but it does not exempt a company from Corporation Tax obligations. Where HMRC requires a Company Tax Return, a micro-entity company must file the same CT600 as any other company. Equally, not every micro-entity will owe Corporation Tax — that depends on the company's taxable position and available reliefs — and filing the return is a separate matter from paying any tax that turns out to be due.

Typically you will need your accounting records and financial statements for the period, details of income and allowable expenses, information about capital expenditure and any reliefs claimed, plus company and period details. Where the company has more complex affairs, additional information may be required. Having your records organised in advance makes CT600 Tax Return Filing much smoother and reduces the risk of queries arising later.

Taxable profit is not simply the profit shown in your accounts. The Corporation Tax computation begins with accounting profit and then applies adjustments — for example adding back expenditure that is not allowable for tax purposes, deducting capital allowances instead of depreciation, and accounting for income or expenses treated differently under tax rules. The result is your taxable profit, on which any Corporation Tax liability is based. Because these adjustments depend on your specific transactions, the calculation is best reviewed carefully rather than assumed.

No. Filing your CT600 and paying any Corporation Tax due are separate obligations with separate processes and, in many cases, separate dates. Submitting the return tells HMRC what your position is; payment settles the liability. It is possible for a return to be filed showing no tax payable, and equally possible for a payment to be due independently of when the return is submitted, so both should be tracked carefully.

Yes. A company can appoint an accountant or tax agent to prepare and submit its CT600 to HMRC on its behalf, and many companies choose to do so. The company remains responsible for the accuracy of the information and for meeting its filing obligations, which is why working with someone who reviews the figures, explains the tax adjustments and keeps proper records is valuable.

Filing a Company Tax Return after the deadline can lead to penalties and interest, and the longer the delay, the more serious the consequences tend to become. HMRC may also issue determinations of tax due if no return is filed. Because the exact outcome depends on your circumstances and HMRC's rules at the time, it is far better to plan ahead and start the CT600 Tax Return Filing process early than to deal with the aftermath of a missed deadline.