─── Specialist Micro-Entity Accountants In The UK

CT600 Tax Return Filing in Ashfield: Prepare and File Your Company Tax Return with HMRC

CT600 Tax Return Filing in Ashfield gives your company a clear, well-managed route through one of the most important parts of its corporate year: preparing and submitting the Company Tax Return to HMRC. The CT600 is the return HMRC uses to capture a company’s Corporation Tax position for an accounting period, and the figures behind it usually start life in your accounting records. They are not simply copied across, however. A Corporation Tax computation may involve adjustments so that the taxable profit reported to HMRC reflects the tax rules rather than only the accounting result, which is why the calculation deserves careful attention. It is equally important to understand that the CT600 is a separate exercise from the statutory accounts filed with Companies House. Those accounts meet a different filing obligation; the CT600 is the Company Tax Return submitted to HMRC. Professional support takes the friction out of the process: gathering the information needed, reviewing the accounting figures, considering where tax adjustments may apply, preparing the Corporation Tax computation, and filing the return through the appropriate HMRC channel. The outcome is accurate, clearly explained Corporation Tax filing delivered with the convenience, continuity and clear, transparent pricing that smaller companies value.

CT600 TAX RETURN FILING

(Turnover up to £100K)

£499.00

+vat

CT600 Return Preparation
Corporation Tax Computation
Tax Adjustment Review
Allowable Expenses Review
HMRC CT600 Filing
Filing Deadline Support

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Trusted by Micro-Entity Businesses Across the UK

From newly incorporated companies to established owner-managed businesses, our clients trust us to prepare their accounts accurately and handle their annual filing requirements.

      EXCELLENT  
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 Trustindex verifies that the original source of the review is Google. I had a really positive experience with Muhammad. He was incredibly quick to action everything and made the whole process straightforward and stress-free. He took care of everything promptly and kept me informed throughout, which was greatly appreciated.

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What Is a Micro-Entity CT600? Corporation Tax Filing for Smaller Companies

There is no separate official form called a micro-entity CT600. The CT600 is the Company Tax Return used by HMRC for companies generally, and a company that operates as a micro-entity uses the same return as any other company when it is required to file one. What differs is the context: micro-entity companies often prepare accounts under a simplified accounting framework and may have simpler records, but a micro-entity company can still have Corporation Tax obligations. Where HMRC requires a Company Tax Return, the company needs to submit a CT600 reporting its Corporation Tax position for the accounting period. That return is separate from the statutory accounts a company files with Companies House. The statutory accounts satisfy a company law filing obligation, while the CT600 is filed with HMRC for tax purposes. The figures in your accounting records and financial statements are usually the starting point for the Corporation Tax calculation, but taxable profit is not automatically the same as accounting profit. The Corporation Tax computation may require adjustments — for example, adding back certain expenses that are not allowable for tax, or accounting for items treated differently under tax rules — before the taxable profit and any resulting Corporation Tax liability are established. It is also worth noting that whether a micro-entity company actually owes Corporation Tax depends on its own circumstances and taxable position, and that filing the CT600 and paying any Corporation Tax due are two separate obligations handled on different timelines.

What a Complete CT600 Submission Includes

The CT600 Form

Company details, accounting period, turnover, profit and the tax calculation.

Tax Computations

A working showing how accounting profit is adjusted into taxable profit.

iXBRL Accounts

Your statutory micro-entity accounts, machine-tagged to HMRC's taxonomy.

Supporting Schedules

Capital allowances, losses, directors' loans and any claims or reliefs.

─── OUR CT600 SERVICE

What's Included in Our CT600 Preparation Service?

Our fixed-fee service covers everything a qualifying micro-entity company needs to complete and file its Corporation Tax Return correctly and on time.

CT600 Return Preparation

Preparation of your Company Tax Return (CT600) from your bookkeeping records, ready for HMRC submission.

Corporation Tax Computations

Full tax computations showing how your taxable profit and Corporation Tax liability have been calculated.

Accounts & Tax Computation Support

Micro-entity accounts tagged in iXBRL format and attached to your CT600 as HMRC requires.

Allowances & Reliefs Review

We check capital allowances, allowable expenses and available reliefs so nothing is claimed twice or missed.

HMRC Filing & Deadline Tracking

Online submission to HMRC plus reminders for your payment and filing deadlines.

─── How It Works

How Our CT600 Tax Return Filing Service Works

Share Your Company Records

Provide the accounting records and relevant company information required to prepare the return.

Review Your Accounting Figures

Review the financial information and identify relevant Corporation Tax adjustments.

Prepare the CT600

Prepare the Company Tax Return and supporting tax computation based on the company's circumstances.

Prepare the CT600

Prepare the Company Tax Return and supporting tax computation based on the company's circumstances.

Review & Approve

You review the information and confirm the return before submission.

File With HMRC

Submit the Company Tax Return through the appropriate HMRC filing process.

─── WHY CHOOSE US

Why Choose Our CT600 Tax Return Filing Service?

We keep Corporation Tax simple, transparent and predictable for busy company directors, with fixed fees agreed before any work begins.

Micro-Entity Expertise

We work exclusively with small limited companies filing under FRS 105, so the CT600 is routine work for us.

Accurate Accounts Preparation

Every adjustment, disallowed expense and capital allowance claim is documented and explained in plain English.

Tax & Filing Support

Missed a deadline? We prepare overdue CT600 returns quickly to limit penalties and interest building up.

Clear Fixed-Fee Pricing

One transparent fee covers preparation, iXBRL tagging and HMRC submission of your Corporation Tax Return.

───WHO WE HELP

CT600 Support for Micro-Entities Across the UK

We support qualifying micro-entity companies across London and the UK, from one-director businesses to consultants and online companies.

One-Director Companies

Straightforward CT600 preparation for owner-managed limited companies with simple salary and dividend structures.

Limited Companies Run by Freelancers & Contractors

Corporation Tax returns for contractors trading through qualifying micro-entity limited companies.

Startups & Small Companies

First-year and dormant-to-trading CT600 filings for newly incorporated and growing micro companies.

CT600 Deadlines and Late Filing Penalties

Corporation Tax has two separate deadlines, and HMRC charges penalties that increase the longer a return stays outstanding.

How late the CT600 is	HMRC penalty
1 day late	£100
3 months late	A further £100
6 months late	HMRC estimates your tax bill and adds 10% of the unpaid tax
12 months late	A further 10% of any unpaid tax

Penalty levels are set by Companies House and may change. Separate HMRC penalties and interest apply to a late Corporation Tax return and unpaid tax. Check the updated guide here.

Take the Pressure Out of Your CT600 Tax Return Filing

Preparing a Company Tax Return is rarely the highlight of anyone’s year. Between pulling together the information HMRC expects, working out whether tax adjustments are needed, turning accounting profit into taxable profit, and remembering that HMRC filing deadlines do not wait, it is easy to feel that the paperwork is running the business rather than the other way round. Micro Entity Accounts is here to take that weight off your shoulders. We help with CT600 preparation, Corporation Tax computation, tax adjustment review and submission to HMRC, working from your accounting records and explaining the numbers in plain English so you understand what is being filed and why. If you would rather spend your time on customers than on Corporation Tax reporting, get in touch with our team and let us handle your next CT600 Tax Return Filing.

─── FAQs

Micro-Entity CT600 FAQs

Still unsure where you stand? Reach out to our UK team at info@microentityaccounts.co.uk and we will review your filing history with you.

What is a CT600?

A CT600 is the form HMRC uses for a Company Tax Return. It reports a company's Corporation Tax position for an accounting period, setting out the period covered, the income and gains concerned, any deductions or reliefs being claimed, and the resulting Corporation Tax calculation. A CT600 is submitted to HMRC, not to Companies House, and is normally filed online either through HMRC's own service or through commercial filing software. It is the formal way a company tells HMRC what it believes its Corporation Tax position to be for that period.

Is a CT600 different from the statutory accounts filed with Companies House?

Yes, and the distinction matters. Statutory accounts are prepared under company law and filed with Companies House as part of a company's public filing obligations. A CT600 is a tax return submitted to HMRC. They are driven by the same underlying accounting records and they should tell a consistent story, but they serve different purposes and go to different places. A company can have its statutory accounts in good order and still need to prepare a separate Corporation Tax computation that turns accounting profit into taxable profit before the CT600 is completed.

Does a micro-entity company need to file a CT600?

Not necessarily, and it depends on the company's own circumstances. A company that is within the charge to Corporation Tax will generally need to notify HMRC when it starts to trade and, where HMRC requires it, submit a Company Tax Return. There is no separate micro-entity version of the CT600 — a micro-entity company uses the same return as any other company when one is required. Equally, filing a CT600 does not automatically mean Corporation Tax is payable; whether there is a liability depends on the company's taxable position for the period.

How is taxable profit calculated from accounting profit?

The Corporation Tax computation usually begins with the profit shown in the accounts for the accounting period and then adjusts it so it reflects the tax rules rather than accounting treatment alone. Common adjustments include adding back expenditure that is not allowable for tax purposes and giving the correct tax treatment to items such as depreciation or business entertaining. The exact adjustments depend entirely on the company's own transactions, which is why a computation is prepared on a case-by-case basis rather than from a standard template. The end result is the taxable profit on which any Corporation Tax liability is based.

Is filing a CT600 the same as paying Corporation Tax?

No — these are two separate obligations. Filing the CT600 is about reporting the company's Corporation Tax position to HMRC for the accounting period. Paying Corporation Tax is about settling any liability that arises from that position, and the payment timetable does not necessarily match the filing timetable. A company can file its return and have nothing to pay, or it may be required to pay before the return is submitted. It is worth planning for both so that neither the reporting nor the payment side catches you out.

What information is needed to prepare a CT600?

In practice you need the company's accounting records and financial statements for the accounting period, details of income and expenses, information about any capital assets bought or sold, and any earlier tax calculations or losses carried forward that may be relevant. It also helps to have the company's unique taxpayer reference, details of the accounting period being reported, and a clear note of any items that might need special tax treatment. The better organised the records, the smoother the Corporation Tax computation and the return itself will be.

Can someone prepare and file a CT600 on behalf of a company?

Yes. A company can appoint an agent to prepare and submit its Company Tax Return, and the agent can normally be authorised to deal with HMRC on the company's behalf so that correspondence comes to the right place. Even so, the company and its directors remain responsible for the accuracy of the information filed and for making sure the return is submitted on time. A good agent works alongside the directors, asking the right questions and explaining the figures rather than simply processing them.

What happens if a company files its CT600 late?

If a Company Tax Return is not filed when HMRC expects it, HMRC may issue penalties and may also charge interest on any tax paid late. The exact consequences depend on how late the return is, the company's history and HMRC's published guidance, so it is not something that can be reduced to a single rule. The practical point is simple: keeping records in order and preparing the CT600 with time to spare is far less stressful than reacting after a deadline has passed. If you are already behind, the sensible first step is to get the position reviewed and the return prepared.