─── Specialist Micro-Entity Accountants In The UK

CT600 Tax Return Filing in Towcester – Prepare and Submit Your Company Tax Return to HMRC

CT600 Tax Return Filing is the process of preparing and submitting a company’s Company Tax Return to HMRC, reporting the company’s Corporation Tax position for an accounting period. It is a different obligation from the statutory accounts filed at Companies House and from a Confirmation Statement, a VAT Return or a Self Assessment tax return. The figures in a CT600 usually begin with the company’s accounts, but they are not simply copied across: the Corporation Tax computation commonly involves tax adjustments so that accounting profit is turned into taxable profit, and it is that taxable figure which drives the reported liability. Professional CT600 Tax Return Filing in Towcester gives company directors a clear, organised route through that work — collating the accounting records, reviewing potential adjustments, preparing the computation and the return, and submitting the CT600 to HMRC on time. For directors who would rather focus on running the business, it brings accuracy, consistency and convenience, with a fixed-fee, transparent approach to pricing rather than open-ended hourly billing.

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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 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 Micro-Entity CT600 and How Does It Relate to CT600 Tax Return Filing?

There is no separate official form called a ‘micro-entity CT600’. A CT600 is the standard Company Tax Return used by companies to report their Corporation Tax position to HMRC, and a company that qualifies as a micro-entity still uses the same CT600 when it is required to file a Company Tax Return. What differs is not the return itself but the surrounding picture: a micro-entity prepares its statutory accounts under a simplified accounting framework, and those accounts, together with the underlying accounting records, form the starting point for the Corporation Tax calculation. Importantly, the accounting framework a company uses does not by itself determine its Corporation Tax liability. Accounting profit is an accounting measure; taxable profit is a tax measure, and the two can differ because the Corporation Tax computation may require adjustments — for example, adding back expenditure that is not allowable for tax, or accounting for capital allowances in place of depreciation. Being a micro-entity does not automatically mean a company owes Corporation Tax; whether any Corporation Tax is payable depends on the company’s own circumstances and its taxable position for the period. Preparing the accounts and preparing the CT600 are related but separate processes, and filing the CT600 is also separate from paying any Corporation Tax that is due.

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 Towcester

Preparing a Company Tax Return can quickly become the task nobody in the business has time for — pulling together the accounting records, working through the tax adjustments that turn accounting profit into taxable profit, keeping Corporation Tax records in good order, and making sure the CT600 reaches HMRC correctly and on time. Micro Entity Accounts supports directors through exactly that work, from CT600 preparation and building the Corporation Tax computation through to reviewing tax adjustments and handling the HMRC filing itself, so you have a clear picture of your company’s Corporation Tax position before anything is submitted. If you would like your CT600 Tax Return Filing taken care of by people who do this every day, get in touch with our team and let’s get your Company Tax Return moving.

─── 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 Tax Return?

A CT600 is the Company Tax Return form used to report a company's Corporation Tax position to HMRC for an accounting period. It sets out the company's income, its taxable profit after adjustments, the Corporation Tax that HMRC's calculation produces, and details of reliefs or allowances being claimed where relevant. The CT600 itself is usually supported by a tax computation and a copy of the company's accounts, which together give HMRC the figures behind the return.

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

Yes, they are two separate filings with two different bodies. Statutory accounts are prepared under an accounting framework and filed at Companies House as part of the public record for the company. A CT600 is submitted to HMRC for Corporation Tax purposes as part of CT600 Tax Return Filing. The two are connected because the accounts feed into the tax calculation, but they serve different purposes, follow different rules in places, and are filed independently of one another.

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

It can do. A micro-entity is an accounting classification based on the company's size, and it does not switch off Corporation Tax obligations. Where HMRC has issued a notice to deliver a Company Tax Return, or where the company has Corporation Tax obligations for the period, a return is normally required. In some circumstances a company may be able to tell HMRC it is not active or that no return is needed, so whether a CT600 is required depends on the company's own situation rather than on its size classification.

How is taxable profit worked out from accounting profit?

The starting point is usually the profit shown in the company's accounts, but that figure is rarely the taxable profit. The Corporation Tax computation applies adjustments: expenditure that is not allowable for tax purposes may be added back, income that is treated differently for tax may be stripped out, and capital allowances are typically claimed instead of the depreciation charged in the accounts. The result is the taxable profit on which the Corporation Tax liability is based. This is why accounts preparation and CT600 preparation are related but distinct pieces of work.

Is a CT600 the same thing as a Corporation Tax computation?

No. The Corporation Tax computation is the working paper that takes accounting profit and adjusts it to reach taxable profit, showing each adjustment and how the liability is arrived at. The CT600 is the return form on which the resulting figures are reported to HMRC. In practice the two are prepared together as part of CT600 Tax Return Filing, and the computation is normally submitted alongside the return so HMRC can see how the numbers were reached.

Is filing a CT600 the same as paying Corporation Tax?

No, filing and payment are separate obligations. Filing the CT600 tells HMRC what the company's liability is for the period; paying Corporation Tax is a separate transaction, and the payment deadline is not necessarily the same as the filing deadline. A company can be up to date with its CT600 and still owe Corporation Tax, or it can have filed and have nothing to pay if its taxable position results in no liability.

What information is needed to prepare a CT600?

The main ingredients are the company's accounting records and finalised accounts for the period, the previous year's return and computation for comparison, any capital purchases or disposals, details of income and expenditure that may need tax adjustments, and information on reliefs or allowances being claimed. Where a company is part of a group or has more complex transactions, extra detail may be needed. Having this material organised before preparation begins makes the whole CT600 Tax Return Filing process quicker and far less error-prone.

What happens if a company files its CT600 late, and can someone file it on the company's behalf?

HMRC sets the filing dates for Company Tax Returns, and missing them can lead to penalties and interest that HMRC calculates according to its own rules and the length of the delay. If a company has received a notice to deliver a return, it is the company's responsibility to make sure the return is filed, even where a third party prepares it. Yes — an accountant or tax agent can prepare and submit a CT600 on a company's behalf, usually through HMRC's online services, while the company remains responsible for approving the figures and for paying any Corporation Tax due.