CT600 Tax Return Filing in Banchory: 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. It reports the company's Corporation Tax position for an accounting period, including details such as the period covered, the company's income and expenses as they feed into the tax calculation, the taxable profit figure, and any Corporation Tax due. It is submitted to HMRC electronically, and in most cases it must be accompanied by a copy of the statutory accounts and a Corporation Tax computation.

Yes. CT600 is simply the name of the form used for a Company Tax Return. When people talk about CT600 Tax Return Filing, filing a Corporation Tax Return, or submitting a Company Tax Return to HMRC, they are generally describing the same task. The terminology can vary between accountants, software providers and HMRC guidance, but the underlying obligation is the same: reporting the company's Corporation Tax position for the period.

Broadly speaking, a UK company that is within the scope of Corporation Tax and has an active accounting period will normally need to submit a Company Tax Return, even if no Corporation Tax ends up being payable. A company may also be required to file where HMRC has issued a notice to deliver a return. Whether a particular company needs to file depends on its circumstances, including whether it has been dormant, when it was incorporated or dissolved, and whether it has any chargeable activity, so it is worth checking your own position rather than assuming.

Yes, and this is one of the most common points of confusion. Statutory accounts are prepared for the company's members and filed with Companies House. A CT600 is a tax return submitted to HMRC. They serve different purposes and go to different organisations. That said, they are related: the figures in your accounts usually form the starting point for the Corporation Tax computation, and a copy of the accounts is normally submitted alongside the CT600 to HMRC. Filing your accounts does not discharge your CT600 obligation, and filing your CT600 does not discharge your Companies House obligation.

They are two parts of the same filing package. The Corporation Tax computation is the working paper that starts with your accounting profit and applies the relevant tax adjustments to arrive at your taxable profit and the resulting Corporation Tax liability. The CT600 is the return itself, where those figures are reported to HMRC. The computation supports and explains the numbers in the return — which is why preparers usually work through the computation first and complete the CT600 afterwards.

There is no separate micro-entity version of the CT600, and being a micro-entity does not in itself remove a Corporation Tax filing obligation. If a micro-entity company is within the scope of Corporation Tax and has an accounting period to report, it will usually need to submit a Company Tax Return. The practical difference is on the accounting side, where simplified accounts may be prepared. Those accounts are separate from the tax return, and the accounting figures may still need tax adjustments before the taxable profit is confirmed. Whether Corporation Tax is actually payable depends on the company's own circumstances and taxable position.

In practice, a preparer will typically need the company's accounting records and trial balance for the period, the statutory accounts if they have been prepared, details of income and expenses, information on fixed assets and any capital expenditure, and details of anything that may need a tax adjustment — such as disallowable expenses, non-taxable income, or losses brought forward. Company details, the accounting period dates, and any previous returns or HMRC correspondence are also useful. Having this information organised in advance makes the whole process quicker and reduces the risk of queries later.

The starting point is usually the company's accounting profit for the period. From there, a series of tax adjustments is applied. Costs that are not allowable for tax purposes may need to be added back, while certain deductions or reliefs may be claimed. Capital expenditure is generally handled through the capital allowances regime rather than through the profit and loss account, and losses may be relieved in different ways depending on the circumstances. The end result is the taxable profit, which may be higher or lower than the accounting profit. Because these adjustments depend on the company's individual transactions, there is no single formula that fits every business.

No — these are separate obligations. Filing the CT600 is about reporting your Corporation Tax position to HMRC by the relevant filing date. Paying any Corporation Tax due is a separate matter, with its own payment deadline, which may fall at a different time from the filing deadline depending on the company's circumstances. It is possible to file a return showing no Corporation Tax payable, and it is also possible to file on time but still owe a payment. Keeping track of both dates is important.

Yes. A company can appoint an accountant or tax agent to prepare and submit its Company Tax Return to HMRC on its behalf. We can review your records, prepare the Corporation Tax computation, complete the CT600 and handle the submission. Responsibility for the accuracy of the return ultimately rests with the company, which is why it is important that the information provided to your preparer is complete and correct, and that any queries raised during the process are answered promptly.

HMRC operates its own regime for returns that are filed late. The consequences depend on a range of factors, including how late the return is and whether any Corporation Tax remains unpaid, and HMRC can issue penalties and charge interest in appropriate cases. Because the position varies from company to company, the safest approach is to check HMRC's published guidance or speak to us about your specific situation. If you are worried you may miss a filing date, telling your accountant early usually gives more options than leaving it until after the event.