CT600 Tax Return Filing in Alnwick – 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 a company's Corporation Tax position for an accounting period, including the company's income, its Corporation Tax computation figures, and the resulting amount of Corporation Tax that the company calculates as due. The CT600 is filed with HMRC — not with Companies House — and it is a tax filing rather than a set of financial statements. In most cases the return is submitted online, together with the supporting accounts and computation in the format HMRC expects.

Yes, and the distinction matters. Statutory accounts are the formal financial statements a company prepares under the applicable accounting framework and files at Companies House, covering the balance sheet, profit and loss account or equivalent, and notes. A CT600 is a tax return submitted to HMRC. Different recipients, different purposes and different filing obligations. The link between them is that the figures in your accounts normally form the starting point for the Corporation Tax computation that sits behind the CT600, so the accounts need to be prepared before the return can be finalised properly.

No. The CT600 is the return form used to report the figures to HMRC; the Corporation Tax computation is the supporting calculation that shows how you moved from your accounting profit to your taxable profit, then to the Corporation Tax liability. The computation normally deals with matters such as disallowable expenditure, capital allowances, losses and other adjustments, and it is usually filed alongside the return. A CT600 without a properly prepared computation is difficult to justify, which is why the two are handled together in practice.

Not automatically, and there is no separate micro-entity version of the form. Companies that are within the charge to Corporation Tax are normally expected to notify HMRC and, where a Company Tax Return is required, to file it. Whether a particular micro-entity company has a filing obligation depends on its own circumstances and its taxable position, and whether Corporation Tax is actually payable is a separate question again from whether a return has to be submitted. It is worth checking your position rather than assuming that a small company or a company with no tax to pay has nothing to do.

Typically you will need the company's accounting records and finalised accounts for the period, a breakdown of income and expenditure, details of any capital purchases and disposals, information about losses brought forward or carried back, details of any reliefs or allowances claimed, and the company's registration details. From those, the Corporation Tax computation is built and the figures are entered on the CT600. The more organised your records are during the year, the smoother the CT600 Tax Return Filing process becomes — and the easier it is to explain any adjustments that have been made.

The starting point is usually the accounting profit shown in the company's accounts, but this is rarely the figure that is taxed. Tax adjustments are applied: expenditure that is not allowable for tax purposes is added back, capital allowances are considered instead of the depreciation charged in the accounts, and other items such as losses and reliefs are factored in. The result is the taxable profit on which Corporation Tax is calculated. Because these adjustments depend on the company's specific transactions, the difference between accounting profit and taxable profit varies from company to company.

No — filing and payment are separate obligations. Filing the CT600 is about reporting the company's Corporation Tax position to HMRC, while payment is a matter of settling any Corporation Tax that is shown as due. It is quite possible for a return to be filed showing a nil liability, and equally possible for a payment to be due regardless of when the return itself is submitted. Keeping the two distinct in your own records helps avoid confusion, and we can explain clearly what your return shows and what it means for the company.

Yes. A company can appoint an agent to prepare and submit its Company Tax Return to HMRC, and many businesses choose to do so because the Corporation Tax computation involves judgement and detail that sits outside day-to-day bookkeeping. The company remains responsible for the accuracy of what is submitted, so it is important to work with someone who asks the right questions, keeps a clear record of the figures used and explains how the taxable profit was arrived at. If you are based in Alnwick or elsewhere in Northumberland, Micro Entity Accounts can handle the preparation and filing and keep you informed at each stage.