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

A CT600 is the form used to submit a Company Tax Return to HMRC. It reports your company's Corporation Tax position for an accounting period, including the figures from the Corporation Tax computation, such as turnover, trading profits, allowable deductions and the resulting taxable profit. The CT600 is filed electronically with HMRC, usually alongside the supporting accounts and computation where these are required.

Yes, they are two separate filings with two separate purposes. Statutory accounts are prepared under an applicable accounting framework and are filed with Companies House. The CT600 is a tax return filed with HMRC that reports the company's Corporation Tax position. The two are linked because the accounting figures normally feed into the Corporation Tax computation, but the accounts themselves do not automatically satisfy the CT600 Tax Return Filing obligation, and filing the CT600 does not replace the requirement to file accounts with Companies House where one applies.

A company generally needs to file a Company Tax Return where HMRC has issued a notice to deliver one, or where the company has Corporation Tax obligations for the period. Whether that applies to your company depends on its circumstances, such as whether it has been trading, whether it has taxable profits or losses, and whether it is within the charge to Corporation Tax. If you are unsure whether a CT600 is required for a particular period, it is worth checking your position before assuming that no filing is needed.

Being a micro-entity changes how your accounts may be prepared and filed, but it does not remove a Corporation Tax obligation. If HMRC requires your company to deliver a Company Tax Return, you will need to submit a CT600 regardless of whether the company is treated as a micro-entity for accounts purposes. Equally, being a micro-entity does not mean Corporation Tax is automatically payable — whether there is a liability depends on the company's taxable position and circumstances.

No. The Corporation Tax computation is the working paper that starts from your accounting profit and applies the necessary tax adjustments to arrive at taxable profit and any Corporation Tax liability. The CT600 is the return itself, which reports the outcome of that computation to HMRC. In practice they are prepared closely together, because the figures from the computation populate the return, but they are distinct documents serving different purposes.

Taxable profit starts with the accounting profit shown by your accounts, but it is then adjusted. Common adjustments include adding back expenditure that is not allowable for tax purposes and deducting items that are treated differently for tax, along with any capital allowances or reliefs that apply to your company. The exact adjustments depend on your company's transactions and circumstances, which is why a careful review of the underlying records matters before the taxable profit figure is finalised.

No, filing and payment are separate obligations. Submitting your CT600 tells HMRC what your Corporation Tax position is for the period, while paying Corporation Tax is a separate action with its own deadline. A company can have a filing obligation even where no Corporation Tax is payable, and conversely a payment may fall due under a different timetable to the return. It is worth keeping both dates in view rather than treating them as a single task.

Yes. A company can appoint an agent to prepare the Corporation Tax computation, complete the CT600 and submit the Company Tax Return to HMRC on its behalf. You remain responsible for the accuracy of the information provided and for making any Corporation Tax payment that is due. Working with someone experienced in CT600 Tax Return Filing can help ensure the figures are properly reviewed and the return is submitted in good order.

Typically we need your accounting records and draft or final accounts for the period, details of income and expenditure, information on capital expenditure and any assets, notes on anything unusual or one-off, and the company's registration details for HMRC. Anything that affects the tax treatment — such as loans to or from directors, or income treated differently for tax — should be flagged as early as possible. Having this information organised before the work starts keeps the CT600 Tax Return Filing process smooth.

If a Company Tax Return is filed after the applicable HMRC deadline, HMRC can issue penalties and may charge interest on any tax paid late. The exact consequences depend on how late the return is and on HMRC's rules and your company's circumstances, so we would not describe any outcome in advance. If you think a deadline may have been missed, it is usually best to act quickly and get the return prepared and submitted rather than leaving the position unresolved.