─── Specialist Micro-Entity Accountants In The UK

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

If your company needs to report its Corporation Tax position, professional CT600 Tax Return Filing in Amersham can take the pressure out of preparing and submitting your Company Tax Return to HMRC. The CT600 is separate from the statutory accounts you file with Companies House, and it is also distinct from a Confirmation Statement or a VAT Return. It brings together the figures and disclosures needed to show your company’s Corporation Tax position for the accounting period. Working with an experienced team helps you keep the process clear and organised, from reviewing your accounting records and identifying potential tax adjustments through to preparing the CT600 and filing it with HMRC. You retain responsibility for the accuracy of the information provided, but professional support can make the filing process more convenient and help you avoid common omissions and inconsistencies. Whether you are filing for the first time or want a smoother routine for each period, the focus is on accuracy, clarity and practical support tailored to your company.

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
  
 
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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.
  
 
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   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 .

Micro-Entity CT600 Explained: CT600 Tax Return Filing in Amersham for Small Companies

There is no separate official ‘micro-entity CT600’ form. The CT600 is HMRC’s Company Tax Return, and it is used by companies that need to report their Corporation Tax position, including some companies that prepare accounts under the micro-entity regime. A micro-entity company may still have Corporation Tax obligations, and where HMRC requires a Company Tax Return, the company will need to submit a CT600. That filing is separate from the statutory accounts filed with Companies House, although the accounting records and accounts may be used as the starting point for the Corporation Tax calculation. The taxable profit shown in the computation can differ from the accounting profit because the Corporation Tax calculation may require adjustments, such as for disallowable expenses, non-taxable income or timing differences. The accounting framework used, such as FRS 105, does not by itself determine whether Corporation Tax is payable or how much is due. For companies in Amersham, CT600 Tax Return Filing should therefore be approached as a distinct exercise from accounts preparation, and it is also separate from paying any Corporation Tax that may be due. Not every micro-entity will owe Corporation Tax; the company’s own circumstances and taxable position determine whether tax is payable.

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.

Ready to Make CT600 Tax Return Filing in Amersham More Manageable?

Preparing a Company Tax Return can feel complicated when you are trying to calculate taxable profit, keep Corporation Tax records organised and meet HMRC filing requirements alongside running the business. Micro Entity Accounts can support you with CT600 preparation, Corporation Tax computation, tax adjustment review and HMRC filing, helping you bring the figures together and understand what is being submitted. Whether you need help with a single period or ongoing support, the process is designed to be clear and practical, with fixed-fee options available. Get in touch to discuss your CT600 Tax Return Filing in Amersham and take the next step with confidence.

─── 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 and is normally supported by a Corporation Tax computation and, where relevant, accounts or other information. CT600 Tax Return Filing is the process of preparing that return and submitting it to HMRC. The CT600 is not the same as statutory accounts filed with Companies House, although the figures in the return will usually start from the company's accounting records.

Who needs to file a CT600?

Whether a company needs to file a CT600 depends on its circumstances and any notice from HMRC. In general, a company that is within the scope of Corporation Tax and has been required to deliver a Company Tax Return will need to file one. Some dormant or non-trading companies may have different obligations, and not every company will owe Corporation Tax even if a return is required. It is best to check the position for the specific accounting period rather than assume one rule fits every company.

Is a CT600 different from statutory accounts?

Yes. Statutory accounts are prepared under company law and filed with Companies House, while a CT600 is a Company Tax Return filed with HMRC for Corporation Tax purposes. The two are related because they draw on the same underlying accounting records, but they serve different purposes and have different filing requirements. Filing statutory accounts does not automatically satisfy the CT600 Tax Return Filing obligation, and filing a CT600 does not replace the need to file statutory accounts where they are required.

Is a CT600 different from a Corporation Tax computation?

Yes. The CT600 is the return form submitted to HMRC, while the Corporation Tax computation is the calculation that starts with accounting profit and makes the necessary tax adjustments to arrive at taxable profit and the Corporation Tax liability. The computation supports the figures reported on the CT600. In practice, both are usually prepared together as part of CT600 Tax Return Filing, because HMRC needs to see how the taxable position has been calculated.

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

A micro-entity company may need to file a CT600 if it has Corporation Tax obligations and HMRC requires a Company Tax Return for the period. Preparing accounts under the micro-entity regime does not, by itself, remove the need to deal with Corporation Tax, and using a framework such as FRS 105 does not automatically determine the company's tax liability. Filing the CT600 is separate from paying Corporation Tax, and not every micro-entity will owe tax. The company's own circumstances and taxable position will determine what is required.

What information is needed to prepare a CT600, and can someone file it on the company's behalf?

To prepare a CT600, you will usually need the company's accounting records, profit and loss figures, balance sheet information, trial balance or ledgers, details of income and expenses, and information about any tax adjustments, reliefs or claims relevant to the period. Company details such as the accounting period dates and registration information will also be needed. A company can authorise an accountant or tax agent to prepare and file the CT600 on its behalf, but the company remains responsible for the information submitted and should review it before filing.

How is taxable profit calculated from accounting profit?

Taxable profit starts with the accounting profit shown in the company's accounts, but it is not always the same figure. The Corporation Tax computation may require adjustments, for example to add back disallowable expenses, remove non-taxable income or account for timing differences and capital items. Once those adjustments are made, the result is the taxable profit used to calculate the Corporation Tax liability. This is why accounts preparation and CT600 Tax Return Filing are related but separate processes.

Is filing a CT600 the same as paying Corporation Tax, and what happens if it is filed late?

No. Filing the CT600 is the reporting step, while paying Corporation Tax is a separate obligation with its own payment arrangements. A company may need to file a return even if no tax is payable, and a tax liability may exist even though the return has not yet been submitted. If a CT600 is filed late, HMRC may apply penalties or interest under its published rules, so it is important to keep the filing date in view. If you are unsure about your position, professional support can help you understand the next steps.