─── Specialist Micro-Entity Accountants In The UK

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

CT600 Tax Return Filing in Uxbridge means preparing and submitting your company’s Company Tax Return to HMRC, setting out the company’s Corporation Tax position for the relevant accounting period. Professional support helps you draw the figures from your accounting records, consider the tax adjustments that may be needed to move from accounting profit to taxable profit, and submit an accurate return through HMRC’s online filing service. It is worth being clear about one thing from the outset: the CT600 is not the same as your statutory accounts. Statutory accounts are prepared under the relevant accounting framework and filed separately with Companies House, while the CT600 is a tax return filed with HMRC. Our approach is straightforward — clear communication, careful preparation, transparent pricing and someone to speak to when questions arise — so that your CT600 Tax Return Filing becomes a routine part of running the business rather than a last-minute scramble.

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  
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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 a Micro-Entity CT600 Really Means for Your Corporation Tax

A micro-entity is a company that meets the size criteria for the micro-entity accounting regime, which affects how its statutory accounts are prepared and filed. It does not create a separate HMRC form, and there is no distinct official ‘micro-entity CT600’. The CT600 is the standard Company Tax Return used to report a company’s Corporation Tax position, regardless of its size. That said, a micro-entity company can still have Corporation Tax obligations — for example, where HMRC has issued a notice to deliver a return, or where the company’s taxable position means a return is required — and in those circumstances a CT600 will normally need to be filed. The accounting figures held in the company’s records and shown in its statutory accounts often form the starting point for the Corporation Tax computation, but taxable profit is not automatically the same as accounting profit. Adjustments such as add-backs for disallowable expenditure, deductions, capital allowances and other tax treatments can all change the final figure, so the two processes can produce different numbers. Whether any Corporation Tax is actually payable depends on the company’s own circumstances, and filing the CT600 is a separate obligation from paying any Corporation Tax that is due — submitting the return does not itself settle the liability.

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 Uxbridge

Gathering the right figures, working through the tax adjustments and making sure everything is submitted to HMRC correctly can feel like a lot to take on alongside actually running a company. Records get scattered, the difference between accounting profit and taxable profit catches people out, and the Corporation Tax computation is often the part that causes the most head-scratching. Micro Entity Accounts can take that off your hands, supporting you with CT600 preparation, the Corporation Tax computation, a review of the tax adjustments needed to arrive at taxable profit, and submission of the Company Tax Return to HMRC — with clear, transparent pricing and straightforward communication throughout. Get in touch to talk through your company’s position and book your CT600 Tax Return Filing.

─── 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 and what is it used for?

The CT600 is the form used to file a Company Tax Return with HMRC. It reports your company's Corporation Tax position for an accounting period, including income, allowable deductions, profits chargeable to Corporation Tax and the resulting Corporation Tax liability, along with other information HMRC expects a company to disclose. It is a tax return, not a set of accounts, and it is submitted electronically to HMRC rather than to Companies House.

Who needs to file a CT600?

A company will normally need to file a Company Tax Return where HMRC has issued a notice to deliver one, and there are other circumstances in which a return is required, such as having profits chargeable to Corporation Tax or particular transactions that must be reported. A company that has received a notice must file a return even if it has no tax to pay or has been dormant in the period, unless HMRC has confirmed otherwise. Because the position depends on your company's specific circumstances, it is worth checking before assuming no return is needed.

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

Yes, they are two separate filings with two different purposes and two different recipients. Statutory accounts are prepared under the applicable accounting framework and filed with Companies House as part of the public record. The CT600 is a Company Tax Return submitted to HMRC to report the Corporation Tax position. The figures in your statutory accounts often feed into the tax return, but the two documents are not interchangeable and are not filed in the same place.

Is a CT600 different from a Corporation Tax computation?

They are related but not the same thing. The Corporation Tax computation is the working that starts with the accounting profit shown in your accounts and applies the relevant tax adjustments to arrive at taxable profit and the Corporation Tax liability. The CT600 is the return form on which those figures are reported to HMRC. In practice, the computation supports the return — you need the calculation before you can accurately complete the CT600.

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

It may well do, but there is no separate 'micro-entity CT600' form — a micro-entity uses the same CT600 as any other company. Whether a return is required depends on the company's circumstances, for example whether HMRC has issued a notice to deliver a return or whether the company has a taxable position that must be reported. Meeting the micro-entity criteria affects how your statutory accounts are prepared, not whether you have Corporation Tax obligations. It also does not automatically determine the tax outcome, since the accounting framework and the tax calculation are separate matters.

How is taxable profit calculated from accounting profit?

The starting point is usually the accounting profit in the company's accounts, but that figure is rarely the taxable profit on its own. The Corporation Tax computation adds back expenditure that is not allowable for tax purposes, deducts items that are allowable but treated differently in the accounts, and applies reliefs and allowances such as capital allowances in place of depreciation. The result is the taxable profit on which Corporation Tax, if any, is calculated. Because these adjustments depend on the company's own transactions, the gap between accounting profit and taxable profit varies from business to business.

Is filing a CT600 the same as paying Corporation Tax?

No — they are two distinct obligations. Filing the CT600 is about reporting your company's position to HMRC, while payment of Corporation Tax is a separate matter with its own timing and method. Submitting the return does not settle the tax due, and paying the tax does not remove the need to file the return. It is important to keep both in view and to make sure your records support the figures you have reported.

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

Yes. A company can authorise an agent to act on its behalf, which allows that agent to prepare the Company Tax Return and submit it to HMRC electronically. You will need to provide the relevant information for the accounting period — bookkeeping records, accounts, details of income and expenditure, and information on any reliefs or allowances claimed — and you remain responsible for the accuracy of what is filed. Having someone experienced handle the preparation, the Corporation Tax computation and the submission can make the whole process considerably smoother.