─── Specialist Micro-Entity Accountants In The UK

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

CT600 Tax Return Filing is the stage where your company’s Corporation Tax position is worked out and reported to HMRC on the Company Tax Return. It is a separate exercise from preparing and filing statutory accounts with Companies House, even though both draw on the same underlying bookkeeping and records. Our team reviews your accounting figures, identifies the tax adjustments that may be needed, prepares the Corporation Tax computation and completes the CT600 accurately before submitting it to HMRC. The result is a clearer, better-organised process, fewer last-minute scrambles over missing information, and the reassurance of having your Corporation Tax reporting handled by people who deal with it routinely.

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 300 reviews 
    
 
 
 
   
 
 
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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 .
  
 
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   Mael Leboucher 
 
 
 
 Trustindex verifies that the original source of the review is Google. We worked with a few different accountants before finally settling with Accotax, and we’re really glad we did. Their team is great. Abdul is responsive and easy to reach whenever I have a question, which makes a big difference. They take the time to understand how our business works and what our needs are. They are very knowledgeable, and when they don’t have the answer straight away, they take the time to look into it and get back to us quickly. Anum, who looks after our account on a day-to-day basis, including reconciling invoices and preparing the annual accounts, is amazing. She is professional, efficient, and follows the processes we have put in place together. She's also very quickin getting back to us whenever needed. We’re very happy to work with her and hope to continue doing so for as long as possible. Overall, Accotax has made our accounting experience much smoother and easier. We see them as a long-term partner as our business continues to grow. I would 100% recommend them.
  
 
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   3rd Hub 
 
 
 
 Trustindex verifies that the original source of the review is Google. Imran provides a very dependable and straightforward accounting service. He is always responsive and professional when managing our accounts. Excellent support.
  
 
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   Martin Tyrrell 
 
 
 
 Trustindex verifies that the original source of the review is Google. I have really impressed to date with all dealings with Accotax highly enough. From day one, they've made what can often be a complicated and stressful part of running a business feel straightforward and hassle-free. A special mention has to go to Anum, who has been friendly, incredibly responsive, and genuinely cares about providing the best possible service. No question is ever too much trouble, and she consistently goes above and beyond to make sure everything is dealt with efficiently. I wouldn't hesitate to recommend you to anyone looking for an accountant they can genuinely trust.
  
 
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   Matthew Lyon 
 
 
 
 Trustindex verifies that the original source of the review is Google. Great speedy service and very personable. Anum dealt with my income certificate and did everything quickly and helped me out massively. Very happy with the service provided.

What Is a Micro-Entity CT600? How CT600 Tax Return Filing Works for Smaller Companies

It is worth clearing up one common confusion straight away: there is no separate official form called a “micro-entity CT600”. A micro-entity company uses the same Company Tax Return, the CT600, as any other company when it needs to report its Corporation Tax position to HMRC. Micro-entity status relates to how a company’s statutory accounts are prepared and filed, and it does not by itself remove Corporation Tax obligations. Where a company is within the charge to Corporation Tax, or has received a notice from HMRC to deliver a return, it will generally need to complete CT600 Tax Return Filing for the relevant accounting period. The CT600 is separate from the statutory accounts filed at Companies House, although the accounting records and the figures in those accounts often form the starting point for the tax calculation. Taxable profit is not automatically the same as accounting profit, because a Corporation Tax computation may require adjustments — for example adding back expenditure that is not allowable for tax, claiming capital allowances instead of depreciation, or removing income that is not taxable. Not every micro-entity will owe Corporation Tax; whether anything is payable depends on the company’s own taxable position after those adjustments. It is also important to remember that filing the CT600 and paying any Corporation Tax due are two distinct obligations, even though they relate to the same accounting period.

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 Langport

Pulling together a Company Tax Return can feel like assembling a jigsaw: the accounts, the tax adjustments, the computation and the HMRC submission all need to line up before anything can be filed. If that is the part of running your company you would rather not wrestle with, Micro Entity Accounts can take it off your desk. We help with CT600 preparation, Corporation Tax computations, tax adjustment reviews and the HMRC filing itself, working from your records and keeping the supporting paperwork behind your Corporation Tax position in good order. If you would like your CT600 Tax Return Filing handled properly and communicated clearly, get in touch with our Langport team to talk through your company’s position.

─── 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?

A CT600 is the form HMRC uses for a Company Tax Return. It sets out a company's income, profits, deductions, allowances and reliefs for an accounting period, and it shows the Corporation Tax the company calculates is due, or in some circumstances the amount it can reclaim. It is submitted to HMRC electronically, normally alongside the company's accounts and a Corporation Tax computation, and it becomes the company's formal Corporation Tax record for that period.

Who needs to file a CT600?

A company will generally need to file a CT600 if it is within the charge to Corporation Tax, or if HMRC has issued it with a notice to deliver a Company Tax Return. That can include companies that made a loss or had no Corporation Tax to pay, because the return is also how losses and reliefs are reported and carried forward. Whether a particular company must file depends on its own circumstances, so it is worth confirming the position rather than assuming either way.

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

Yes — they are separate documents with separate filing obligations. Statutory accounts are prepared under an accounting framework and filed with Companies House, presenting the company's financial position and performance on the public record. A CT600 is the Company Tax Return submitted to HMRC reporting the Corporation Tax position. The two are connected because the accounts usually provide the starting point for the tax figures, but filing one does not discharge the other.

Does a micro-entity company need to file a CT600, and is there a separate micro-entity CT600 form?

There is no separate official micro-entity CT600 form — a micro-entity company uses the same Company Tax Return as everyone else. Micro-entity status affects how statutory accounts are prepared and filed; it does not, on its own, remove Corporation Tax obligations. Where a micro-entity company is within the charge to Corporation Tax, or has received a notice to deliver a return, CT600 Tax Return Filing is generally required. Whether Corporation Tax is actually payable then depends on the company's taxable position after any adjustments.

What is the difference between a CT600 and a Corporation Tax computation?

They work together but they are not the same thing. The Corporation Tax computation is the schedule that starts with the accounting profit and makes the tax adjustments needed to arrive at taxable profit and the resulting Corporation Tax figure. The CT600 is the return in which those figures are reported to HMRC. A clear, well-prepared computation makes the CT600 entries straightforward and leaves a proper trail behind the numbers.

How is taxable profit calculated from the accounting profit?

The starting point is usually the profit shown in the company's accounts for the accounting period. Adjustments are then made — for example adding back expenditure that is not allowable for tax, claiming capital allowances in place of depreciation, removing income that is not taxable, and taking account of losses brought forward or other reliefs. Timing differences between when something appears in the accounts and when it is taxed may also need to be considered. The precise adjustments depend on the company's transactions, which is why a computation is prepared on a company-by-company basis.

Is filing a CT600 the same as paying Corporation Tax?

No. Filing the CT600 tells HMRC what the company's Corporation Tax position is; paying Corporation Tax is a separate step, generally falling on a different timetable from the return. A company can have a filing obligation even when nothing is payable, such as where it has made a loss, and it can have tax to pay before the return has been submitted. Keeping the filing and the payment in view separately helps avoid confusion.

What happens if a company files its CT600 late?

If a Company Tax Return is filed late, HMRC may charge penalties and interest, and the amount can depend on how late the return is and whether any tax has been paid. Late or corrected returns can also create extra work later if figures need amending. If you think a return is going to be late, it is usually better to speak to HMRC and to bring the accounts and computation up to date promptly rather than leaving the position to drift.