─── Specialist Micro-Entity Accountants In The UK

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

CT600 Tax Return Filing in Sutton gives your company a clear, accurate route to reporting its Corporation Tax position to HMRC. Our service covers preparing the Company Tax Return and the supporting Corporation Tax computation, so the figures submitted reflect your company’s taxable profit rather than simply repeating the accounting profit shown in your year-end accounts. It is important to remember that a CT600 is a separate obligation from the statutory accounts you file with Companies House, and from a Confirmation Statement or VAT Return. Micro Entity Accounts manages the CT600 Tax Return Filing process carefully and conveniently — working from your accounting records, reviewing potential tax adjustments, and submitting the Company Tax Return to HMRC on your behalf, with clear, transparent pricing and a straightforward, professional service.

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  
   Based on 302 reviews 
    
 
 
 
   
 
 
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   Ayotunde Rufai 
 
 
 
 Trustindex verifies that the original source of the review is Google. Best accountants we've ever had. Umer is ace, and makes everything easy and transparent.
  
 
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   Sofia 
 
 
 
 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.

Muhammad was professional, responsive and genuinely helpful from start to finish. It was clear that he cared about providing a great service and making sure everything was handled properly. I would definitely recommend him to anyone looking for someone reliable, efficient and professional.
  
 
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   Zest For Life 
 
 
 
 Trustindex verifies that the original source of the review is Google. I worked with Accotx on a HMRC reclaim and overall, they did ultimately deliver on their promise, which I appreciate. The process did take longer than any of us expected, partly due to external delays with the tax authorities, and partly because there were some hiccups in communication and follow-up. However, despite those challenges, they stayed professional and stuck to the original agreed terms. If you’re considering using them, be prepared to stay in regular contact to keep things moving along. They are absolutely capable, have the expertise and willing to work with you, and overall  improving their services over time. I would certainly return for any future needs.
  
 
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   Pete Wrist 
 
 
 
 Trustindex verifies that the original source of the review is Google. Sterling work. Many thanks to Muhammad and the team for all their help and expertise
  
 
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   Hansen Personal Training 
 
 
 
 Trustindex verifies that the original source of the review is Google. We have been a client for years - very quick responsive and personalised service
  
 
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   Jamie Fletcher 
 
 
 
 Trustindex verifies that the original source of the review is Google. It was a pleasure working with Anum on our accounts. The whole process was swift and effortless, and it was one less thing to worry about. I'd highly recommend them.
  
 
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   Mansur Liman 
 
 
 
 Trustindex verifies that the original source of the review is Google. Accotax have been our accountants for many years now. We maintained them, because of their professionalism. In the last coiple of years, i have working with Imran, who has been very professional and helpful in guiding us through the whole process explaining and clarifying every aspect of it. Very prompt in responding to questions and patient with us even when we seem to be slow. I really enjoy working with him. Thank you
  
 
      Posted on Google  
   
   Muna Mohamoud 
 
 
 
 Trustindex verifies that the original source of the review is Google. I highly recommend Imran to anyone looking for a reliable and knowledgeable accountant. He helped me sort out a very complicated backlog of accounts and prepared my overdue tax returns with professionalism and attention to detail.

Throughout the process, he was incredibly patient, took the time to answer all of my questions, and explained everything clearly. He guided me through each step and helped rectify issues that had built up over time, making what felt like an overwhelming situation much more manageable.

I'm very pleased with the service I've received and truly appreciate his support. If you need help with your accounts or taxes, I would highly recommend Imran.
  
 
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   Sergey M 
 
 
 
 Trustindex verifies that the original source of the review is Google. I had a positive experience with Accotax. The work was completed promptly, my tax return was successfully filed, and I received a refund of overpaid tax. I found the cooperation efficient and helpful. Special thanks to Muhammad Saifullah for his assistance.
  
 
      Posted on Google  
   
   Ebba Qureshi 
 
 
 
 Trustindex verifies that the original source of the review is Google. Fabulous team at ACCOTAX - very efficient and good response time . Honest and professional with their work. I would highly recommend them even if you’re a young start up - or a large business they have it covered .

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

There is no separate official “micro-entity CT600” form. The CT600 is the Company Tax Return used to report a company’s Corporation Tax position to HMRC, and it applies to companies generally. Where a micro-entity company has Corporation Tax obligations and is required to submit a Company Tax Return, it does the same CT600 Tax Return Filing as any other company — what differs is often the scale and simplicity of the figures involved, and the practical need for close support. A micro-entity may still receive a notice to file from HMRC, and if it has taxable profits, losses, or other reportable matters for the period, a CT600 will normally be needed. Filing a CT600 is separate from filing statutory accounts with Companies House, although the two are connected: your accounting records and the accounts you prepare usually form the starting point for the Corporation Tax calculation. Importantly, the accounting framework you use — whether that is FRS 105 or another basis — does not by itself determine your Corporation Tax liability. Taxable profit can differ from accounting profit, because the Corporation Tax computation may require adjustments, for example for disallowable expenditure, capital allowances, or income and expenses treated differently for tax purposes. Equally, not every micro-entity will owe Corporation Tax; whether any tax is payable depends on the company’s own circumstances and taxable position. It is also worth separating the filing of a CT600 from the payment of any Corporation Tax due, as these are distinct obligations with their own processes.

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 in Sutton

Preparing a Company Tax Return involves more than copying figures from your accounts. Working out taxable profit means reviewing your accounting profit for tax adjustments, keeping the supporting records organised, and making sure the CT600 and Corporation Tax computation line up before anything goes to HMRC. That is exactly where Micro Entity Accounts can help, with CT600 preparation, Corporation Tax computations, tax adjustment reviews and submission of the Company Tax Return to HMRC on your behalf. If your year end is approaching or your filing date is on the horizon, get in touch with our Sutton team and let us take the CT600 Tax Return Filing off your to-do list.

─── 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 used to submit a Company Tax Return to HMRC. It reports a company's Corporation Tax position for an accounting period, including the taxable profit or loss, the Corporation Tax chargeable (if any), and other information HMRC requires such as details of the period covered and the company's activities. The CT600 is usually supported by a Corporation Tax computation and, in most cases, by a copy of the statutory accounts for the same period.

Is a CT600 the same as a Corporation Tax computation?

No — they are related but different documents. The Corporation Tax computation is the working paper that starts with your accounting profit and applies the tax adjustments needed to arrive at taxable profit and the resulting Corporation Tax liability. The CT600 is the formal return that reports those figures to HMRC. The computation supports and explains the numbers in the return, and we prepare the two together so they are consistent.

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

Yes. Statutory accounts are prepared under an accounting framework and filed at Companies House, and they follow company law requirements. A CT600 is a tax return submitted to HMRC that reports the company's Corporation Tax position. They cover the same trading period and share much of the same underlying information, but they serve different purposes, go to different authorities, and are prepared on different bases. Filing one does not satisfy the obligation to file the other.

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

It may do, depending on the company's circumstances. Micro-entity status affects how accounts are prepared for Companies House, but it does not automatically remove Corporation Tax reporting obligations. If HMRC has issued a notice to file a Company Tax Return, a CT600 will normally be required. If the company has taxable profits, reportable losses, or other matters HMRC expects to see, a return is usually needed too. If you are unsure whether a return is due, it is worth checking rather than assuming, as the position depends on the company's own situation.

What information is needed to prepare a CT600?

We normally start with the company's accounting records and a draft set of accounts for the period, along with details of income, expenses, and any assets purchased or disposed of. It also helps to have information on items that commonly need tax adjustments, such as business entertaining, depreciation, loan relationships, and any income taxed differently from how it appears in the accounts. Details of the company itself, the accounting period, and any previous losses carried forward are also relevant. Where something is missing, we will tell you what is needed.

How is taxable profit calculated from accounting profit?

The Corporation Tax computation begins with the accounting profit shown in the accounts, then adds back expenses that are not allowable for tax and deducts or adjusts items treated differently for tax purposes to arrive at taxable profit. Adjustments commonly arise around depreciation and capital allowances, disallowable expenditure, and certain income or gains. The result is the taxable profit on which any Corporation Tax is calculated, and it can be higher or lower than the accounting profit depending on the company's circumstances and the adjustments required.

Is filing a CT600 the same as paying Corporation Tax?

No. Submitting the CT600 is the reporting obligation — it tells HMRC what the company's Corporation Tax position is for the period. Paying Corporation Tax is a separate obligation with its own process, and any amount due is worked out from the same computation reported in the return. Filing the return does not itself discharge a tax liability, and a company can have a filing obligation even where no tax is payable. We can help you understand both elements, but they should not be treated as one and the same.

What happens if a company files its CT600 late?

HMRC can apply penalties and charge interest where a Company Tax Return is filed late or where tax is paid late, and the position depends on how late the filing is and whether any tax remains outstanding. The safest approach is to file as early as the figures allow and to speak to HMRC or a professional promptly if you think a deadline will be missed, rather than waiting. We can help you get the CT600 Tax Return Filing back on track and keep future filings properly scheduled.