CT600 Tax Return Filing in Poole — Prepare and File Your Company Tax Return with HMRC

The CT600 is the form HMRC uses for a Company Tax Return. It sets out a company's income, gains, deductions, reliefs and allowances for an accounting period, and arrives at the Corporation Tax position for that period. In practice, the CT600 is the final summary of a wider piece of work: the company's statutory accounts provide the starting figures, a Corporation Tax computation makes the necessary adjustments to reach taxable profit, and the resulting numbers are entered into the CT600 and submitted to HMRC electronically.

A CT600 is generally required by companies that are within the scope of Corporation Tax once HMRC has issued a notice to deliver a Company Tax Return, or where a return is otherwise required. Whether a particular company needs to file depends on its own circumstances — its activity, its tax position for the period and any correspondence from HMRC. Some companies that have no Corporation Tax to pay still need to file a return, and others may not be required to. If you're unsure whether your company falls within scope for a given period, it's worth checking with HMRC or taking professional advice rather than assuming either way.

Yes, and the distinction matters. Statutory accounts are the company's financial statements, filed at Companies House under the Companies Act framework and prepared under the relevant accounting standard. A CT600 is a tax return, submitted to HMRC, that reports the company's Corporation Tax position. The two are prepared for different audiences and different purposes, and they create two separate filing obligations. They often share the same underlying accounting figures, which is exactly why care is needed: the accounts show accounting profit, while the CT600 needs taxable profit, and those are frequently not the same number.

No. The Corporation Tax computation is the working paper that starts with the company's accounting profit, makes the required tax adjustments, and arrives at the taxable profit and the Corporation Tax liability. The CT600 is the return form on which those conclusions are reported to HMRC. In other words, the computation is the thinking and the supporting detail; the CT600 is the formal submission. Both are normally needed, and the computation is what supports the figures shown in the return if HMRC ever asks questions.

It may well do — micro-entity status relates to the accounting framework used for the statutory accounts, not to whether a company has Corporation Tax filing obligations. A company that qualifies as a micro-entity can still be within the scope of Corporation Tax and, where HMRC requires it, will need to submit a Company Tax Return. Equally, not every micro-entity will owe Corporation Tax: whether tax is payable depends on the company's taxable position for the period. The safest approach is to look at the company's own circumstances each year rather than assuming that a small size means no tax filing is needed.

The starting point is usually the profit shown in the company's accounts. From there, the Corporation Tax computation makes adjustments so that the figure reflects what is taxable rather than what is merely accounting profit. That can mean adding back items of expenditure that aren't allowable for tax purposes, applying capital allowances in place of depreciation on qualifying assets, and taking account of any reliefs the company is entitled to claim. The exact adjustments depend entirely on what the company has done during the period and what its accounts contain, which is why a generic template rarely tells the full story.

No — these are two separate obligations. Filing the CT600 reports the company's Corporation Tax position to HMRC and declares what, if anything, is due. Paying Corporation Tax is a separate action, with its own timing and payment methods, and the two do not happen automatically together. It is entirely possible to have filed a return and still need to make a payment, or to have no tax to pay but still be required to file. Keeping track of both, and making sure the payment isn't overlooked once the return is submitted, is a big part of staying on top of Corporation Tax.

In practice, the two are closely linked. A CT600 needs figures, and those figures come from the company's accounting records and statutory accounts, with a tax computation layered on top to bridge the gap between accounting profit and taxable profit. HMRC generally expects the accounts and the tax computation to accompany the Company Tax Return, so preparing the CT600 usually follows on from finalising the accounts rather than replacing that step. Because the requirements can vary with a company's circumstances, it's sensible to confirm the position for your own return before relying on a shortcut.