CT600 Tax Return Filing in Peterlee – 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 figures that underpin the Corporation Tax computation, such as turnover, trading profits, allowable deductions and any reliefs or adjustments claimed. The CT600 is normally submitted online, and in many cases it is filed alongside the supporting accounts and computation in the required format. It is the company's tax return, not a set of statutory accounts, and the two serve different purposes even though the underlying figures are related.

Yes — these are two separate filings with two different bodies. Statutory accounts are prepared for the company's members and filed with Companies House, whereas the CT600 is a Company Tax Return submitted to HMRC. The accounts and the tax return are connected because the accounts usually provide the starting point for the Corporation Tax computation, but a CT600 also includes tax-specific detail that would not normally appear in statutory accounts. That is why accounts preparation and CT600 Tax Return Filing are best treated as related but distinct pieces of work, even when they are done at the same time.

It depends on the company's circumstances. Small and micro-entity companies are not exempt from Corporation Tax requirements simply because of the accounting framework they use. Where HMRC issues a notice requiring a Company Tax Return, or where the company has a Corporation Tax liability or other matter that must be reported, a CT600 is generally required. Whether Corporation Tax is actually payable depends on the company's taxable position, and filing the return does not automatically mean tax is due. If you are unsure about your own situation, it is worth taking advice based on your specific figures and HMRC correspondence.

Accounting profit is the figure reported in your accounts, prepared under the relevant accounting framework. Taxable profit is the figure that Corporation Tax is calculated on, and it is reached by making adjustments to the accounting profit. Typical adjustments include adding back expenditure that is not allowable for tax, deducting capital allowances instead of depreciation, and accounting for income or costs that are treated differently for tax purposes. The result of that process is the Corporation Tax computation. Because these adjustments are specific to each company's transactions, taxable profit will often differ from accounting profit.

No. Filing and payment are separate obligations. The CT600 reports the company's Corporation Tax position to HMRC, while any Corporation Tax due must be paid separately through the appropriate HMRC payment channel. It is possible to have submitted the return and still owe tax, or to have no tax to pay but still have a filing requirement. Keeping these two things distinct helps avoid confusion, and it is sensible to diarise both the filing and the payment side rather than treating the submitted return as the end of the process.

The CT600 and the statutory accounts are separate filings, so submitting a Company Tax Return does not, by itself, satisfy your Companies House obligations — and filing accounts with Companies House does not file your tax return. In practice, HMRC typically expects the accounts and computation to accompany the Company Tax Return in the required format, which is one reason the two processes are usually prepared together. The key point is that they are distinct requirements with distinct recipients, so both need to be dealt with in line with the company's own filing obligations.

As a starting point, we would normally ask for the company's accounting records and finalised accounts for the period, details of income and expenditure, fixed asset purchases and disposals, any tax already paid or credits to claim, and the company's registration details. Where relevant, information on expenses that may need adjusting for tax, such as business entertaining or depreciation, is also useful. Because requirements vary from company to company, the exact list depends on your trade and transactions. Having records organised in good time generally makes CT600 Tax Return Filing smoother and reduces the chance of queries later on.

Filing late is something to avoid, because HMRC can apply penalties and interest in line with its published rules, and the consequences can build up the longer a return remains outstanding. It can also trigger HMRC contact or enquiries that take time and attention to resolve. The specific outcome depends on the circumstances of the delay and HMRC's own guidance, so we would not recommend assuming a fixed result. If you are worried that a filing date has been missed, or you are unsure whether a return is due, it is best to seek advice promptly so the position can be reviewed.