─── Specialist Micro-Entity Accountants In The UK

CT600 Tax Return Filing in Gillingham: 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 Gillingham can take the pressure off. The CT600 is the Company Tax Return — the form HMRC uses to capture your company’s income, allowable deductions, reliefs and the resulting Corporation Tax position for the accounting period. Preparing it properly means starting from reliable accounting records, reviewing the figures for tax adjustments, building a clear Corporation Tax computation, and then submitting the return to HMRC accurately and on time. It is important to understand that a CT600 Tax Return is not the same thing as your statutory accounts. Statutory accounts go to Companies House, while the CT600 goes to HMRC, and although the two are connected, they serve different purposes and can be prepared on different bases. Working with an experienced team helps you keep those obligations separate, spot the adjustments that turn accounting profit into taxable profit, and file with confidence — without the guesswork.

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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 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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 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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 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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 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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 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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 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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 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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   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, and How Does It Fit With CT600 Tax Return Filing?

There is no separate official “micro-entity CT600” form. HMRC uses one Company Tax Return — the CT600 — and it applies to companies across the board, whatever their size. Where a business operates as a micro-entity, the practical difference lies in how its accounts are prepared and how much detail it is required to disclose, not in the tax return form itself. A micro-entity company can still have Corporation Tax obligations, and where HMRC has issued a notice to deliver a Company Tax Return — or where the company has profits to report or reliefs to claim — it will generally need to submit a CT600 to HMRC. That return is separate from the statutory accounts, which are filed with Companies House under a different process and a different set of rules. The figures in those accounts are usually the starting point for the Corporation Tax calculation, but the taxable profit reported on the CT600 may not be identical to the accounting profit. Adjustments can arise for items such as disallowable expenditure, capital allowances, and other tax-specific treatments, and each adjustment needs to be considered on the company’s own facts. Every micro-entity is different: some will have a Corporation Tax liability, some will not, and the answer depends on the company’s circumstances and its taxable position. It is also worth remembering that filing the CT600 and paying any Corporation Tax due are two separate obligations with their own processes — submitting the return does not, by itself, settle the tax. Where a company is unsure whether a return is required, what adjustments apply, or how to present its figures, taking professional advice early usually makes the whole process smoother.

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 Gillingham

Preparing a Company Tax Return can quickly become complicated. You need accounting records that stand up to scrutiny, a Corporation Tax computation that correctly converts accounting profit into taxable profit, a clear view of any tax adjustments, and a submission to HMRC that is accurate and well presented. Miss a step and you can end up revisiting the figures later, which costs time you would rather spend running the business. Micro Entity Accounts works with UK companies on CT600 preparation and filing, Corporation Tax computations, tax adjustment reviews and the submission of the Company Tax Return to HMRC, so the whole process is managed in one place by people who do this every day. Get in touch with Micro Entity Accounts and let us take 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 Company Tax Return form used to report a company's Corporation Tax position to HMRC. It sets out the company's income and chargeable gains, allowable deductions, reliefs and allowances claimed, and the resulting Corporation Tax position for a given accounting period. It is submitted to HMRC, not to Companies House, and it sits alongside — but separately from — the statutory accounts and the Corporation Tax computation that support the figures reported.

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

Yes, they are two distinct filing obligations. Statutory accounts are prepared under an applicable accounting framework and filed at Companies House, where they become part of the public record. The CT600 is a tax return submitted to HMRC to report the company's Corporation Tax position. The two documents are related because the accounting figures often form the starting point for the tax calculation, but they are prepared for different audiences, follow different rules, and are filed through different channels.

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

It may well do. Operating as a micro-entity affects how the accounts are prepared and how much disclosure is required — it does not create a separate tax return or exempt a company from Corporation Tax reporting. A company generally needs to submit a Company Tax Return where HMRC has issued a notice to deliver one, or where it has profits, losses or reliefs that need to be reported or claimed. Dormant and non-trading companies can have different obligations, so it is worth checking your specific position rather than assuming.

How is a CT600 different from a Corporation Tax computation?

The Corporation Tax computation is the working document that starts from the company's accounting profit and applies the necessary tax adjustments to arrive at taxable profit and the resulting Corporation Tax position. The CT600 is the return that reports that outcome to HMRC. In practice the computation does the thinking, and the CT600 presents the result, so the two are usually prepared alongside each other rather than one instead of the other.

How is taxable profit calculated from accounting profit?

Taxable profit usually starts with the profit shown in the accounts and is then adjusted. Items that are treated as allowable for accounting purposes but not for tax are typically added back, while certain tax-specific deductions — such as capital allowances — may be claimed in place of the depreciation charged in the accounts. The exact adjustments depend on the company's transactions and circumstances, which is why a review of the figures is an important part of preparing a CT600.

What information is needed to prepare a CT600?

A typical starting point includes the company's accounting records and finalised accounts for the period, details of income, expenses and any capital purchases, information on reliefs or allowances being claimed, prior period figures where relevant, and confirmation of the company's registration details with HMRC. Accurate records make the tax adjustments easier to identify and reduce the risk of having to revisit the return later.

Is filing a CT600 the same as paying Corporation Tax?

No. Filing the return and paying any Corporation Tax due are separate obligations. Submitting the CT600 reports the company's position to HMRC, while payment is handled through HMRC's payment processes and may follow a different timetable. A company can submit its return correctly and still need to make arrangements separately to settle any liability, so it is worth keeping both in view.

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 to HMRC, and many businesses choose this route because it brings consistency, accuracy and a second pair of eyes to the tax adjustments. The company remains responsible for the information provided and for confirming that it is complete and correct, which is why good communication between the business and whoever is filing on its behalf matters.