─── Specialist Micro-Entity Accountants In The UK

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

If your company needs to report its Corporation Tax position to HMRC, our CT600 Tax Return Filing service in Leamington is designed to make the process clear, accurate and straightforward. We help you pull together the figures from your accounting records, review the tax adjustments that may be needed to turn accounting profit into taxable profit, and prepare the CT600 — the Company Tax Return that HMRC requires. It is worth being clear that the CT600 is a separate filing from the statutory accounts you submit to Companies House, and from your Confirmation Statement, VAT Returns and other company obligations. Our role is to keep the two processes aligned while treating each on its own terms, so the figures you report to HMRC are consistent with the accounts and the underlying records. Whether your company is small, micro or simply growing, CT600 Tax Return Filing support gives you a reliable route to submitting your Company Tax Return with confidence and a much lighter administrative load.

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

Find Your Company

Search for your company to continue with the accounting services

Start typing to search for companies...

Results

Years filing UK company accounts

0 +

Micro entity accounts submitted

0 +

Verified Google reviews

0 +

Typical Filing Turnaround

0 Days

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 
    
 
 
 
   
 
 
       Posted on Google  
   
   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
  
 
      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.
  
 
      Posted on Google  
   
   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 .
  
 
      Posted on Google  
   
   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.
  
 
      Posted on Google  
   
   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.
  
 
      Posted on Google  
   
   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.

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

It is worth clearing up a common misunderstanding: there is no separate official “micro-entity CT600” form. The CT600 is the Company Tax Return used by companies to report their Corporation Tax position to HMRC, and it applies across company sizes. What changes for a micro-entity company is the accounting framework it uses and the level of detail in its statutory accounts — not the existence of a different tax return. A micro-entity company can still have Corporation Tax obligations, and where HMRC requires a Company Tax Return, one must be submitted. The CT600 is separate from the statutory accounts filed with Companies House, although the accounts and the company’s accounting records often form the starting point for the Corporation Tax calculation. That calculation can involve adjustments, which means taxable profit may differ from the accounting profit shown in the accounts. It is also important not to assume that every micro-entity owes Corporation Tax: whether any Corporation Tax is payable depends on the company’s own circumstances and taxable position. Equally, filing the CT600 and paying any Corporation Tax due are separate obligations — submitting the return does not itself settle a tax liability, and payment is handled separately. If you are unsure how this applies to your company, professional CT600 Tax Return Filing support in Leamington can help you work through the detail.

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 Leamington

Preparing a Company Tax Return is rarely the highlight of running a business. There is the accounting profit to reconcile, the tax adjustments to consider, the Corporation Tax computation to build, and the HMRC filing itself to get right — all while you are trying to run the company. Micro Entity Accounts works with companies in Leamington and beyond on exactly this, offering CT600 Tax Return Filing support that includes CT600 preparation, Corporation Tax computation work, a review of the tax adjustments that may be needed, and submission to HMRC. We take the time to understand your records and explain clearly what has been included and why, so you are not left guessing about your Corporation Tax position. If your Company Tax Return is approaching or your records need tidying before it can be prepared, get in touch with Micro Entity Accounts and let us take the filing off your desk.

─── 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 the company's Corporation Tax position for an accounting period, setting out figures such as turnover, trading profits and the Corporation Tax calculated as due or repayable, based on the company's taxable profits. The CT600 is filed with HMRC, not Companies House. It is a company tax filing and is distinct from a personal Self Assessment tax return.

Is a CT600 the same as statutory accounts?

No. They are separate documents with separate purposes and separate recipients. Statutory accounts are the financial statements a company prepares and files at Companies House under the Companies Act requirements that apply to it. The CT600 is the Company Tax Return submitted to HMRC to report the Corporation Tax position. The figures in the accounts are often the starting point for the tax calculation, but the CT600 reflects the taxable position after any required adjustments, and the two documents are filed through different channels.

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

It can do. Being a micro-entity affects the accounting framework and the level of disclosure in the statutory accounts; it does not create a separate or simplified tax return. Where HMRC requires a Company Tax Return from the company, a CT600 must be submitted. Whether the company ends up owing Corporation Tax depends on its own circumstances and taxable position — a small or micro company is not automatically exempt from Corporation Tax, and it is not automatically liable either.

Is a CT600 different from a Corporation Tax computation?

Yes, though they work together. The Corporation Tax computation is the working that starts with the company's accounting profit and applies the adjustments needed to arrive at taxable profit, including items that are not allowable for tax or are treated differently for tax purposes. The CT600 is the return that reports the resulting figures to HMRC. In practice, the computation supports the entries made on the CT600, so the two are prepared alongside each other.

What information is needed to prepare a CT600?

Typically you will need the company's accounting records and statutory accounts for the period, details of income and allowable expenses, information on capital additions and disposals, any tax already paid or credits due, and details of the company itself and the accounting period covered. Where adjustments are needed, supporting workings are useful too. If some of this is missing or incomplete, it often makes sense to sort out the records before preparing the return rather than after.

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

Yes. A company can appoint an accountant or tax agent to prepare and submit its Company Tax Return, and to act as its agent in correspondence with HMRC. The company remains responsible for the accuracy of what is filed and for meeting its own filing and payment obligations, which is why a good preparer will work from your records, ask questions where something is unclear, and explain the basis of the figures rather than simply filing and moving on.

Is filing a CT600 the same as paying Corporation Tax?

No. Filing the CT600 and paying any Corporation Tax due are separate obligations with their own arrangements. Submitting the return tells HMRC what the company's position is; it does not settle a liability. Equally, a company may submit its CT600 and find that no Corporation Tax is payable for that period, depending on its taxable position. It is worth keeping an eye on both the filing and the payment side so neither is overlooked.

What happens if a company files its CT600 late?

Late filing can lead to penalties and additional charges, and the position can escalate the longer a return remains outstanding. Because the consequences depend on the specific circumstances and HMRC's own rules at the time, we would not set out fixed figures here. The practical point is that a late return is best addressed promptly — if you have missed a filing or expect to, it is worth speaking to an accountant about getting the return prepared and submitted as soon as possible.