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

A CT600 is the form HMRC uses for a company's Company Tax Return. It sets out the company's Corporation Tax position for an accounting period, including the figures drawn from the accounts, the taxable profit after any adjustments, and the resulting Corporation Tax calculation. It is submitted to HMRC electronically, usually alongside a Corporation Tax computation and, in many cases, a copy of the statutory accounts. The CT600 is a tax return for HMRC — it is not the same document as the accounts filed at Companies House.

Broadly, a UK limited company that is within the scope of Corporation Tax will normally need to file a Company Tax Return, and HMRC will usually issue a notice to deliver one. Whether a particular company must file for a particular period depends on its circumstances — for example whether it has been dormant, whether it has only recently been incorporated, or whether HMRC has issued a formal notice. If you are unsure about your own position, it is worth checking rather than assuming, because the obligation can arise even where no Corporation Tax ends up being payable.

Yes, they are separate documents with separate purposes and separate recipients. Statutory accounts are prepared under an accounting framework and filed with Companies House as part of the company's public filing obligations. The CT600 is the Company Tax Return submitted to HMRC to report the Corporation Tax position. Both are usually built from the same bookkeeping records, and the accounts often accompany the tax return, but filing one does not discharge the obligation to file the other. Preparing the accounts and filing the CT600 are related processes, not the same process.

No. The CT600 is the return itself — the form submitted to HMRC — while the Corporation Tax computation is the working that shows how you got from accounting profit to taxable profit. The computation starts with the profit shown in the accounts and then makes the adjustments required for tax purposes, such as adding back disallowable expenditure or reflecting capital allowances and other reliefs. The resulting figures are then carried into the CT600. HMRC generally expects the computation to accompany the return, so most filings involve both.

There is no separate micro-entity version of the CT600. If your company is within the scope of Corporation Tax and HMRC requires a Company Tax Return for the period, the same CT600 applies regardless of the accounting framework used to prepare your accounts. Being a micro-entity affects how your statutory accounts are drawn up and filed — it does not, on its own, decide whether Corporation Tax is payable or whether a return is required. That depends on the company's own circumstances and taxable position. Many small companies find their accounts are simple but still need the tax position reviewed and reported properly.

Taxable profit usually begins with the accounting profit shown in your accounts, but it is rarely the final figure. The Corporation Tax computation adjusts that profit for tax purposes — adding back items that are not allowable as a business deduction, deducting items that are allowable for tax but treated differently in the accounts, and applying capital allowances and other available reliefs. The result is the taxable profit on which any Corporation Tax liability is based. Because these adjustments depend on the specific transactions and assets involved, the calculation has to be worked through for each company rather than applied as a standard formula.

No — filing and payment are separate obligations. Submitting the CT600 tells HMRC what the company's Corporation Tax position is for the period; paying any Corporation Tax that is due is a separate step, and the amounts and dates involved depend on the company's circumstances and HMRC's rules. It is quite possible for a company to file its return and owe nothing, or to owe an amount that has to be paid under a different timetable from the filing. We can help you understand what applies to your company so nothing gets overlooked.

To prepare a CT600 we normally need your accounting records for the period — bookkeeping, bank and sales records, purchase invoices, payroll information, details of assets purchased or sold, and any earlier filings or computations for context. From there we can build the accounts figures, prepare the Corporation Tax computation and complete the return. Yes, a company can authorise an agent to prepare and file its Company Tax Return with HMRC, and many directors prefer that. If you would like support with CT600 Tax Return Filing in Penrith, get in touch and we can talk through what we would need from you.