─── Specialist Micro-Entity Accountants In The UK

CT600 Tax Return Filing in Tilbury – Prepare and File Your Company Tax Return with HMRC

Professional CT600 Tax Return Filing in Tilbury helps limited companies bring their Corporation Tax position together and submit a Company Tax Return to HMRC with accuracy and confidence. The CT600 is the form HMRC uses to report a company’s income, gains, allowances and reliefs for Corporation Tax purposes, and it is a separate filing obligation from the statutory accounts a company submits to Companies House. Our role is to review the figures from your accounting records, work through the tax adjustments that may be needed to arrive at taxable profit, prepare the return and manage the submission to HMRC on your behalf. If you are filing for the first time, catching up on an outstanding return, or simply want the administrative burden lifted, we can take the detail off your desk and keep the process clear from start to finish. Filing a CT600 and paying any Corporation Tax due are separate obligations, so we will also help you understand what is being reported and when payment matters.

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 .

What Is a CT600 and How Does It Apply to Micro-Entity Companies?

A CT600 is the Company Tax Return that a UK limited company uses to report its Corporation Tax position to HMRC. There is no separate official “micro-entity CT600” form — the same CT600 is used across companies, but a company that qualifies as a micro-entity may have particular accounting and tax considerations that shape what goes into it. A micro-entity company still has Corporation Tax obligations where HMRC requires it to file a Company Tax Return, and the accounting figures from its records and accounts are typically the starting point for the Corporation Tax calculation. It is important to separate this from statutory accounts prepared under a framework such as FRS 105 and filed with Companies House: accounts preparation and Corporation Tax filing are related but distinct processes, and the accounting framework used does not by itself determine the Corporation Tax liability. Taxable profit can also differ from accounting profit, because the Corporation Tax computation may require adjustments — for example, disallowable expenses or timing differences — before taxable profit is established. Depending on the company’s circumstances, it may not owe Corporation Tax at all, and filing the CT600 is not the same as paying Corporation Tax, as the reporting and payment obligations are separate.

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.

Make Your CT600 Tax Return Filing Straightforward

Preparing a Company Tax Return can quickly become complicated once you move beyond the accounting profit and start thinking about tax adjustments, allowable deductions and the records HMRC expects you to keep. Micro Entity Accounts can take that work off your hands, from reviewing your bookkeeping and preparing the CT600 through to building the Corporation Tax computation, checking the adjustments between accounting and taxable profit, and handling the HMRC filing itself. If you would rather spend your time running the business in Tilbury than decoding tax legislation, get in touch and we will talk you through what is needed and how the process works.

─── 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 UK limited company's Corporation Tax position to HMRC. It sets out the company's income, chargeable gains, allowances, reliefs and deductions for the accounting period, and it forms part of the company's Corporation Tax filing responsibilities. The CT600 is submitted to HMRC, not to Companies House, and it is prepared using the figures from the company's accounting records alongside any adjustments required to arrive at taxable profit.

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

Yes, they are two separate filings with two separate bodies. Statutory accounts are prepared under an accounting framework and filed with Companies House, while a CT600 is a tax return submitted to HMRC. The accounts and the CT600 are connected because the accounting figures usually provide the starting point for the Corporation Tax calculation, but completing one does not satisfy the other. A company may need to prepare and file both, and the amounts reported can differ once tax adjustments are applied.

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

It depends on the company's circumstances. A company that is within the Corporation Tax system and has been asked by HMRC to deliver a Company Tax Return will generally need to file a CT600, and this can apply to micro-entity companies as well as larger ones. Being a micro-entity affects how the statutory accounts may be prepared, but it does not by itself exempt a company from Corporation Tax filing obligations. If you are unsure whether a return is required for your company, it is worth checking your position with HMRC or with an adviser.

Is a CT600 the same as a Corporation Tax computation?

No. The CT600 is the return that reports the figures to HMRC, while the Corporation Tax computation is the working that shows how you moved from accounting profit to taxable profit. The computation applies tax adjustments, such as adding back disallowable expenses or accounting for capital allowances, and its results feed into the figures entered on the CT600. Preparing a solid computation first makes the return itself far easier to complete accurately.

How is taxable profit calculated from accounting profit?

Taxable profit is not always the same as the profit shown in the accounts. The starting point is usually the accounting profit for the period, which is then adjusted to reflect tax rules — for example, expenditure that is not allowable for tax purposes is added back, and reliefs or allowances such as capital allowances may be deducted. Timing differences, such as depreciation versus capital allowances, can also create a gap between the two figures. The CT600 reports the taxable profit that results from those adjustments, not simply the accounting profit.

Is filing a CT600 the same as paying Corporation Tax?

No, they are separate obligations. Filing the CT600 is about reporting the company's Corporation Tax position to HMRC, while paying Corporation Tax is a separate financial obligation where a liability arises. A company can file its return on time and still have a payment to make, and the payment deadlines do not always fall on the same date as the filing deadline. It is worth tracking both so that neither is overlooked.

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

Yes. A company can appoint an agent to prepare the CT600 and submit it to HMRC on its behalf, and that arrangement typically involves authorising the agent to act for the company for Corporation Tax purposes. In practice, this means you provide the accounting records and relevant information, and the agent handles the tax adjustments, the computation, the return itself and the submission. The company remains responsible for the accuracy of what is filed and for any tax that is due.

What information do I need to provide to prepare a CT600?

The main requirement is a complete set of accounting records for the accounting period, including the profit and loss account, balance sheet and supporting detail such as sales, expenses, payroll information, asset purchases and any other income. It also helps to have details of anything unusual in the period, such as asset disposals, loans to or from directors, or expenditure that may not be allowable for tax. The more organised your records, the smoother the Corporation Tax computation and CT600 preparation will be.