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

A CT600 is the Company Tax Return that a company uses to report its Corporation Tax position to HMRC. It sets out the company's income and expenses for the period, the taxable profit or loss, any deductions and reliefs being claimed, and the resulting Corporation Tax position. The CT600 is submitted to HMRC rather than to Companies House, and it is not a set of statutory accounts. To prepare one, you generally need your accounting records for the period, the figures from your statutory accounts, details of any disallowable or non-trading items, information about reliefs and allowances that may be relevant, and details of any tax already paid or payments on account made.

Broadly speaking, a company that is within the scope of Corporation Tax will usually need to notify HMRC and file a Company Tax Return, and a return is normally required where HMRC has issued a notice to deliver one. The exact position depends on the company's own circumstances. It is possible for a company to have a filing obligation even where no Corporation Tax ends up being payable, and companies with straightforward or minimal activity can still fall within the filing rules. Dormant, non-trading and investment companies can each have different requirements, so it is worth checking your specific position rather than assuming a return is or is not needed. If you are unsure, a review of your circumstances will confirm what HMRC expects from your company.

Yes — they are two separate documents with two separate purposes and two separate recipients. Statutory accounts are the company's financial statements, prepared under an accounting framework such as FRS 105 for micro-entities, and they are filed at Companies House. A CT600 is the Company Tax Return filed with HMRC to report the company's Corporation Tax position. The figures in your statutory accounts are usually the starting point for the tax computation that supports the CT600, but the return itself is a tax document, not a set of published accounts. Filing one does not automatically satisfy the other, so both obligations need to be tracked separately.

No. The Corporation Tax computation is the working schedule that starts with your accounting profit and adjusts it to arrive at taxable profit — for example by adding back expenditure that is not allowable for tax, dealing with income or costs treated differently under tax rules, and reflecting reliefs and allowances where they apply. The CT600 is the return form that reports the outcome of that work to HMRC. In practice the two go hand in hand: the computation is the supporting calculation, and the CT600 is the filing. Preparing the computation carefully is what gives the figures on the CT600 a clear and defensible basis.

There is no separate micro-entity version of the CT600, and operating as a micro-entity does not remove Corporation Tax obligations. A micro-entity company that is within the scope of Corporation Tax and is required to file a Company Tax Return will normally do so using a CT600. What does change for smaller companies is often the accounting side — micro-entities commonly prepare accounts under FRS 105 — but the accounting framework you use does not by itself determine your Corporation Tax liability. Whether any Corporation Tax is actually payable depends on the company's taxable position and circumstances, so a company can have a filing obligation even in a period where no tax is due.

Taxable profit usually starts with the accounting profit shown in your accounts, but it is not automatically the same figure. The Corporation Tax computation adjusts the accounting profit for items treated differently for tax purposes. Typical adjustments include adding back expenditure that is not allowable as a deduction, removing income that is not taxable in the same way, and taking account of capital allowances, losses brought forward, and other reliefs where they apply to your circumstances. Once those adjustments are made, the result is the taxable profit used to work out the Corporation Tax position reported on the CT600. Because the adjustments depend on the company's own transactions, keeping clear records during the year makes this stage far quicker and more reliable.

No — filing and payment are separate obligations. Filing the CT600 is about reporting your company's Corporation Tax position to HMRC, while paying Corporation Tax is about settling any liability the company owes. A company may file its return and find that no tax is payable for that period, and equally a company may owe tax that has to be paid whether or not the return has been submitted on time. HMRC sets the rules and dates for both, and they are not always aligned, so it is worth keeping an eye on each separately. If you are unsure what your company owes, or when, checking your position and keeping a note of both obligations is the sensible approach.

Late filing can lead to penalties and interest charges, and HMRC sets the rules and amounts that apply. Because the treatment depends on HMRC's current rules and on the company's own circumstances, it is better to check HMRC's published guidance than to rely on assumptions about what might happen. If you think a return may be late, the practical steps are to establish the correct due date, prepare the figures as quickly as you reasonably can, and submit the return once it is accurate rather than delaying further. It is also worth keeping your records of what was filed and when. We can help you work out what is outstanding, prepare the CT600 and get the filing with HMRC back on track.