CT600 Tax Return Filing in Kenley – Prepare and File Your Company Tax Return with HMRC

A CT600 is the form HMRC uses for a Company Tax Return. It is the document through which a company reports its Corporation Tax position for an accounting period, including the figures on which its taxable profit and Corporation Tax liability (if any) are based. The CT600 is submitted to HMRC, not to Companies House, and it is normally supported by a computation showing how taxable profit was calculated and by a copy of the statutory accounts. Although it is a standard return, its content depends on the company's own circumstances, which is why the supporting computation matters as much as the form itself.

A company normally needs to file a Company Tax Return if HMRC has issued it with a notice to deliver one, which is usually sent after the company is registered for Corporation Tax. That filing requirement can apply even where no Corporation Tax is payable, for example where the company has made a loss or has no taxable profits for the period. Companies that have never been sent a notice may still have registration and notification obligations. The safest approach is to check your company's specific position rather than assume that dormancy or a nil profit removes the requirement altogether.

Yes, and the distinction matters. Statutory accounts are prepared under an accounting framework and filed with Companies House as part of the company's public filing obligations. A CT600 is a tax return submitted to HMRC and reports the company's Corporation Tax position. The accounts often form the starting point for the tax figures, but they are not a substitute for the return, and the return is not a substitute for the accounts. The two are prepared for different purposes, filed with different bodies, and each has its own requirements, so treating them as one exercise is a common cause of errors.

The CT600 is the return itself — the form and schedules submitted to HMRC. The Corporation Tax computation is the working paper that shows how the company's accounting profit has been adjusted to arrive at taxable profit, and how the resulting Corporation Tax figure has been calculated. In practice the computation sits behind the return: it explains and supports the numbers entered on the CT600. Preparing the computation properly is often the most technical part of CT600 Tax Return Filing, because it is where items treated one way in the accounts are treated differently for tax.

Possibly, and it depends on the company's circumstances rather than on its size. There is no separate 'micro-entity CT600' — micro-entity status affects how the statutory accounts may be prepared, not which tax return HMRC uses. If a micro-entity company has been issued with a notice to deliver a Company Tax Return, it will generally need to file one, even if its taxable profit is nil or it has made a loss. Equally, not every micro-entity will owe Corporation Tax, and filing a CT600 is not the same as paying tax — the amount payable, if any, depends on the company's taxable position.

No. Filing is about submitting the Company Tax Return and the supporting computation to HMRC by the relevant date. Payment is about settling any Corporation Tax that is actually due, and the payment date is not necessarily the same as the filing date. It is quite possible to file a CT600 that shows no Corporation Tax payable, and it is possible for a company to have a filing obligation while owing nothing. Keeping the two obligations separate in your mind helps avoid the mistake of assuming that filing the return automatically settles the tax, or that no tax due means no return is needed.

Typically we need your accounting records and statutory accounts for the period, a breakdown of income and expenditure, details of fixed assets and any purchases or disposals, information about any other income such as interest, and notes on items that may need tax adjustments, such as business entertaining, depreciation, or expenses with a private element. It also helps to have details of any losses brought forward, any payments already made to HMRC, and the company's registration details. If your records are incomplete, we can work with you to identify what is missing before the return is prepared.

Yes. A director or company officer can authorise an agent to prepare and submit the Company Tax Return to HMRC on the company's behalf. The company remains responsible for the accuracy of what is filed, which is why it is important to work with someone who asks the right questions, explains the adjustments being made, and keeps you informed about what has been submitted and when. Using an agent also means the filing process, the Corporation Tax computation, and your statutory accounts can be coordinated rather than handled in isolation.

The starting point is usually the company's accounting profit for the period, as shown in the statutory accounts. That figure is then adjusted: items that are allowable for tax are kept in, items that are not allowable are added back, capital expenditure is generally dealt with through capital allowances rather than as an expense, and other reliefs or adjustments may apply. The result is the taxable profit on which Corporation Tax is calculated. Because these adjustments depend on the company's particular transactions and on current tax rules, the taxable profit can be higher or lower than the accounting profit — or the company may end up with a loss.

HMRC can charge penalties and interest where a Company Tax Return is filed late or where Corporation Tax is paid late, and the amount generally depends on how late the filing or payment is. Beyond the financial cost, late filing can lead to HMRC enquiries and correspondence that take up time to resolve. If you think a deadline may be missed, it is worth seeking advice promptly rather than waiting, as early action usually gives more options. We can help you get your CT600 Tax Return Filing back on track and keep future filings organised.