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

A CT600 is the form used to submit a Company Tax Return to HMRC. It sets out a company's Corporation Tax position for an accounting period, including the figures behind the calculation and the resulting liability. The CT600 is a tax return filed with HMRC — it is not the same document as the statutory accounts a company files with Companies House, even though the two are closely related because your accounts figures usually feed into the Corporation Tax computation.

Generally, any company that HMRC has notified as being within the charge to Corporation Tax will need to file a Company Tax Return, unless HMRC has specifically told the company it does not need to. Whether a particular company must file, and for which periods, depends on its circumstances — for example whether it has been trading, how long the accounting period is, and whether it is dormant for Corporation Tax purposes. If you are unsure about your own position, it is worth checking before the filing date rather than assuming a return is not required.

Yes, they are two separate filings with two different recipients. Statutory accounts are prepared under an accounting framework and filed with Companies House as part of the public record of the company. A CT600 is submitted to HMRC to report the company's Corporation Tax position. The figures in the accounts normally form the starting point for the Corporation Tax computation, but the accounts themselves are not the tax return, and filing one does not satisfy the other.

Yes. The Corporation Tax computation is the working that takes your accounting profit and adjusts it to arrive at taxable profit — adding back disallowable expenditure, deducting or claiming reliefs such as capital allowances where applicable, and dealing with other tax-specific items. The CT600 is the return form on which the results of that computation are reported to HMRC. In practice the computation sits behind the return, so good CT600 Tax Return Filing always involves getting the computation right first.

A micro-entity company is not exempt from Corporation Tax filing simply because it prepares simplified accounts. If the company falls within the charge to Corporation Tax and HMRC requires a return, it will need to file a Company Tax Return in the usual way. The fact that the statutory accounts are prepared under a micro-entity regime does not by itself settle the Corporation Tax position, and it does not automatically mean Corporation Tax is payable — that depends on the company's taxable profit and circumstances, which is why the computation matters.

The two obligations are separate, so filing the CT600 with HMRC does not mean the statutory accounts have also been filed with Companies House, and vice versa. That said, preparing the CT600 normally depends on having accounts figures to start from, because the Corporation Tax computation is built on the company's accounting profit. Companies House accounts and the HMRC Company Tax Return each have their own requirements and should both be dealt with under the relevant rules rather than assumed to be covered by one filing.

Typically you will need the company's accounting records and accounts for the period, details of income and expenditure, the accounting period start and end dates, details of any capital expenditure or asset disposals, information about any other income or reliefs claimed, and the company's registration details. The exact list depends on the company's activities. In many cases, a large part of the work is reviewing the accounts to identify the tax adjustments needed before taxable profit can be calculated.

Taxable profit starts with the accounting profit shown in the accounts, but it is not usually the same figure. Adjustments are commonly required — for example adding back expenditure that is not allowable for tax, deducting items that are treated differently for tax purposes, and claiming capital allowances instead of deducting some capital costs. The result is the taxable profit on which Corporation Tax is calculated. Because these adjustments depend on the company's specific transactions, each computation is worked through individually rather than applied as a fixed formula.

No. Filing the CT600 is the reporting step — it tells HMRC what the company's Corporation Tax position is for the period. Paying Corporation Tax is a separate obligation, and whether anything is payable depends on the taxable profit and the company's circumstances for that period, including any reliefs or losses available. It is possible to file a return showing no Corporation Tax due, and it is also possible to have a filing obligation and a payment obligation that fall due at different times.

Yes. A company can authorise an agent to prepare and submit its Company Tax Return to HMRC, and many businesses choose this route because of the technical work involved in building the Corporation Tax computation correctly. The company remains responsible for the accuracy of what is submitted and for its own tax position, so working with someone who takes the time to understand the business and the underlying records is important. This is the kind of support offered through CT600 Tax Return Filing services for Hornchurch companies.

Late filing can lead to penalties and, where tax is unpaid, interest or further charges from HMRC. The amount and nature of any penalty depends on how late the return is, the company's history and HMRC's rules, so it is not something that can be reduced to a single figure. The practical answer is to avoid the situation where possible: diarise the filing date, get the records to your accountant early, and if a deadline is at risk, speak to HMRC or your adviser as soon as you know rather than after the event.