─── Specialist Micro-Entity Accountants In The UK

CT600 Tax Return Filing in Llandeilo – Prepare and Submit Your Company Tax Return to HMRC

If your company needs to report its Corporation Tax position to HMRC, professional CT600 Tax Return Filing in Llandeilo can take the pressure off. The CT600 is the Company Tax Return submitted to HMRC, and it reports your company’s income, allowable deductions and resulting Corporation Tax position for the accounting period. It is not the same thing as statutory accounts filed with Companies House, and it is not a Confirmation Statement or a VAT Return – those are separate obligations with their own rules and deadlines. Our support covers the practical work behind a confident filing: reviewing your bookkeeping and accounts, preparing the Corporation Tax computation, identifying where tax adjustments may be needed so that taxable profit is calculated correctly from accounting profit, and submitting the completed CT600 to HMRC on your behalf. Whether you run a small trading company, a consultancy or a micro-entity with straightforward affairs, the aim is the same – accurate figures, a clear explanation of what has been filed, and a process you do not have to manage alone.

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 300 reviews 
    
 
 
 
   
 
 
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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.
  
 
      Posted on Google  
   
   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
  
 
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   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 .
  
 
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   Mael Leboucher 
 
 
 
 Trustindex verifies that the original source of the review is Google. We worked with a few different accountants before finally settling with Accotax, and we’re really glad we did. Their team is great. Abdul is responsive and easy to reach whenever I have a question, which makes a big difference. They take the time to understand how our business works and what our needs are. They are very knowledgeable, and when they don’t have the answer straight away, they take the time to look into it and get back to us quickly. Anum, who looks after our account on a day-to-day basis, including reconciling invoices and preparing the annual accounts, is amazing. She is professional, efficient, and follows the processes we have put in place together. She's also very quickin getting back to us whenever needed. We’re very happy to work with her and hope to continue doing so for as long as possible. Overall, Accotax has made our accounting experience much smoother and easier. We see them as a long-term partner as our business continues to grow. I would 100% recommend them.
  
 
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   3rd Hub 
 
 
 
 Trustindex verifies that the original source of the review is Google. Imran provides a very dependable and straightforward accounting service. He is always responsive and professional when managing our accounts. Excellent support.
  
 
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   Martin Tyrrell 
 
 
 
 Trustindex verifies that the original source of the review is Google. I have really impressed to date with all dealings with Accotax highly enough. From day one, they've made what can often be a complicated and stressful part of running a business feel straightforward and hassle-free. A special mention has to go to Anum, who has been friendly, incredibly responsive, and genuinely cares about providing the best possible service. No question is ever too much trouble, and she consistently goes above and beyond to make sure everything is dealt with efficiently. I wouldn't hesitate to recommend you to anyone looking for an accountant they can genuinely trust.
  
 
      Posted on Google  
   
   Matthew Lyon 
 
 
 
 Trustindex verifies that the original source of the review is Google. Great speedy service and very personable. Anum dealt with my income certificate and did everything quickly and helped me out massively. Very happy with the service provided.

Is There a Separate Micro-Entity CT600? Understanding CT600 Filing for Micro-Entity Companies

There is no separate official “micro-entity CT600” form. The CT600 is the standard Company Tax Return used by companies to report their Corporation Tax position to HMRC, and it applies regardless of the accounting framework a company uses. Where a small or micro-entity company has Corporation Tax obligations, it may need to submit a CT600 to HMRC for its accounting period – but whether it does, and whether any Corporation Tax is actually payable, depends on the company’s own circumstances and taxable position. A micro-entity often prepares simpler accounts, yet the accounting figures in those accounts are only the starting point for tax. The Corporation Tax computation may require adjustments, for example to add back disallowable expenses or to account for capital allowances or other reliefs, so taxable profit can differ from the accounting profit shown in the accounts. It is also important not to confuse filing with payment: submitting a CT600 and paying any Corporation Tax due are separate obligations. Statutory accounts filed with Companies House are a separate filing too, produced under the relevant accounting framework and sent to a different body. In practice, accounts preparation and Corporation Tax filing are related but distinct processes, and a micro-entity that understands the difference is far less likely to miss something important.

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.

Let Us Handle Your CT600 Tax Return Filing in Llandeilo

Preparing a Company Tax Return can quickly become complex once you move from bookkeeping to the Corporation Tax computation – working out which expenses are allowable, reviewing potential tax adjustments, and making sure taxable profit is calculated properly from accounting profit. Micro Entity Accounts helps companies in Llandeilo and across the UK take that burden off their desk, with support covering CT600 preparation, Corporation Tax computation work, tax adjustment review and submission of the Company Tax Return to HMRC. We keep the process clear and organised, explain what has been filed and why, and offer transparent, fixed-fee options so there are no surprises. Get in touch to discuss your company’s CT600 Tax Return Filing and let us take it from here.

─── 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 Company Tax Return form used to report a company's Corporation Tax position to HMRC. It sets out the figures for the accounting period, including the company's income and gains, allowable deductions, and the resulting Corporation Tax position, along with the supporting Corporation Tax computation. Companies complete and submit it through HMRC's online Corporation Tax service or via compatible software, and an agent can submit it on the company's behalf where authorised.

Who needs to file a CT600?

A company generally needs to file a Company Tax Return if HMRC has issued it with a notice to deliver one, or if the company has Corporation Tax obligations for the period. Whether a particular company must file depends on its circumstances – for example, whether it has taxable profits, whether it has been dormant, or whether HMRC has asked for a return. Because the rules depend on your company's own position, it is worth checking before assuming that no return is required.

Is a CT600 the same as statutory accounts?

No. A CT600 is a tax return submitted to HMRC, while statutory accounts are a separate filing obligation, usually submitted to Companies House. They are prepared under an accounting framework and present the company's financial position and performance, whereas the CT600 reports the Corporation Tax position to HMRC. The accounts figures often feed into the Corporation Tax computation, but the two documents serve different purposes, go to different recipients, and can have different deadlines.

Is a CT600 different from a Corporation Tax computation?

Yes, although they work together. The Corporation Tax computation is the working that starts with the accounting profit from the accounts and adjusts it to arrive at taxable profit – for example, by adding back expenses that are not allowable for tax or by reflecting capital allowances and other reliefs. The CT600 is the return form on which the company reports those results to HMRC. In practice, the computation supports the figures entered on the CT600.

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

There is no separate micro-entity CT600. A company that operates as a micro-entity may still have Corporation Tax obligations and, where required, needs to submit a Company Tax Return to HMRC in the usual way. Small and micro companies often have simpler accounting, but the tax position still depends on the company's own circumstances – it should not be assumed that every micro-entity owes Corporation Tax or that every one must file. Where a return is required, the company's records and accounts typically form the basis of the Corporation Tax calculation.

How is taxable profit calculated from accounting profit?

Taxable profit usually starts with the accounting profit shown in the company's accounts, and then adjustments are made. These might include adding back expenditure that is not allowable for Corporation Tax purposes, deducting items treated differently for tax, and bringing in capital allowances or other reliefs in place of depreciation. The result is the taxable profit used to work out the Corporation Tax position. This is why accounting profit and taxable profit can differ, and why a review of the figures is a normal part of CT600 Tax Return Filing.

Is filing a CT600 the same as paying Corporation Tax?

No. Filing the CT600 and paying any Corporation Tax due are separate obligations with separate processes and, often, different timings. Submitting the return tells HMRC what the company's position is for the period; any liability then needs to be paid in line with the applicable payment rules. A company could potentially file its return accurately and still need to arrange payment separately, so both should be tracked.

What happens if a company files its CT600 late?

Late filing can result in penalties and interest, and HMRC may also issue an estimated assessment if a return is not received. The exact consequences depend on how late the return is and on the company's circumstances, so it is best to act quickly if you are concerned about a deadline. Getting the figures prepared and the return submitted as soon as possible is usually the most sensible step, and professional support can help you work through a backlog.

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 through HMRC's online services, once the appropriate authorisation is in place. This is common for directors who prefer to focus on running the business, and it also means the Corporation Tax computation, tax adjustment review and the CT600 itself are handled as one joined-up process rather than as separate tasks.