─── Specialist Micro-Entity Accountants In The UK

CT600 Tax Return Filing in Tonypandy — Prepare and File Your Company Tax Return with HMRC

CT600 Tax Return Filing in Tonypandy gives your company a clear, professionally supported route to reporting its Corporation Tax position to HMRC. The CT600 is the Company Tax Return that a UK company submits to HMRC, setting out its income, deductions and reliefs for an accounting period and the resulting Corporation Tax position. Preparing it properly means starting from reliable accounting records, reviewing the figures for tax adjustments, and building a Corporation Tax computation that supports the entries on the return. It is important to understand that the CT600 is not the same as your statutory accounts: statutory accounts are filed separately with Companies House, while the CT600 is filed with HMRC. Our role is to help you prepare the return accurately, keep your Corporation Tax records organised, and submit the Company Tax Return on your behalf, so you can stay focused on running the business rather than working through forms, figures and tax calculations.

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 .

Micro-Entity CT600 Explained: Corporation Tax Filing for Small Companies

There is no separate official “micro-entity CT600” form — the CT600 is the standard Company Tax Return used to report a company’s Corporation Tax position to HMRC, and it applies regardless of how small the company is. That said, companies that operate as micro-entities often have straightforward accounts and may qualify to prepare statutory accounts under a simplified accounting framework. Where such a company has Corporation Tax obligations and is required to file a Company Tax Return, it still uses the CT600 to report its position. The accounting records and statutory accounts prepared for Companies House are usually the starting point for the Corporation Tax calculation, but they are not the same thing as the return itself. Taxable profit can differ from accounting profit, because the Corporation Tax computation may require adjustments — adding back expenditure that is not allowable for tax, deducting allowable items not reflected in the accounts, and applying reliefs or allowances where the company qualifies. It is also worth being clear on two points: not every micro-entity will owe Corporation Tax, since the company’s own circumstances and taxable position determine whether tax is payable, and filing the CT600 is a reporting obligation that is 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 Take Care of Your CT600 Tax Return Filing in Tonypandy

Working out taxable profit, applying the right tax adjustments and pulling together a Company Tax Return can quickly become one of the most demanding jobs on a director’s list — especially when the figures need to reconcile with accounts that are being filed separately with Companies House. Micro Entity Accounts can help lighten that load. We assist with CT600 preparation, Corporation Tax computations, a review of the adjustments between your accounting profit and taxable profit, and the actual HMRC filing itself, all delivered with clear, transparent pricing and plain-English communication. If you would rather hand the detail over to someone who deals with it every day, get in touch with our team and let us help you get your CT600 Tax Return Filing sorted.

─── 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 form HMRC uses for a Company Tax Return, sometimes called a Corporation Tax Return. It reports a company's income, gains, deductions and reliefs for an accounting period and sets out the resulting Corporation Tax position — what is due, repayable or carried forward. It is normally submitted online using HMRC-recognised software, together with a Corporation Tax computation and the supporting accounts information. The CT600 is a return to HMRC; it is not a Companies House document.

Is a CT600 different from statutory accounts?

Yes, they are two separate filings made to two different bodies. Statutory accounts are prepared under an accounting framework and filed with Companies House, where they form part of the public record. The CT600 is a tax return filed with HMRC. They are connected because the accounts figures usually form the starting point for the Corporation Tax computation, but the figures reported to HMRC can differ from the accounting figures once tax adjustments are applied. Filing your accounts does not automatically satisfy your Company Tax Return obligation, and vice versa.

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

Not automatically — it depends on the company's circumstances. A company's obligation to deliver a Company Tax Return generally arises where HMRC has issued a notice to file, and the position can differ for dormant companies or those with no taxable activity. Many companies that operate as micro-entities do need to file, but you should not assume either way. It is worth checking your specific position with HMRC or with an accountant before deciding, particularly if your trading activity or income has changed during the year.

Is filing a CT600 the same as paying Corporation Tax?

No. Filing the CT600 is a reporting obligation, while paying Corporation Tax is a separate financial obligation with its own timeline. A return can show no tax payable, or it can show tax due that you then pay separately. You may also make a payment before the return has been submitted. Because the two obligations are distinct, it is worth tracking both dates and making sure the amount you pay reconciles with the liability reported on the return.

How is taxable profit calculated from accounting profit?

The usual starting point is the company's accounting profit for the period. The Corporation Tax computation then adjusts that figure — adding back expenditure that is not allowable for tax purposes, deducting items that are allowable for tax but not included in the accounts, and applying any reliefs, allowances or losses the company is entitled to claim. The result is the taxable profit on which Corporation Tax is calculated. A difference between accounting profit and taxable profit is entirely normal, which is why the computation is such an important part of CT600 Tax Return Filing.

What information is needed to prepare a CT600?

Typically you will need the company's accounting records and final figures for the accounting period, bookkeeping and bank data, details of income and expenditure, information on capital purchases and disposals, any loans or director transactions, and prior-year returns and computations including losses brought forward. If statutory accounts have already been prepared, those figures usually form the basis of the calculation. Having complete, well-organised records from the outset makes the process quicker and reduces the likelihood of queries arising later.

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

Yes. Directors can authorise an accountant or tax agent to prepare and submit a Company Tax Return on the company's behalf through HMRC's online services. The company itself remains responsible for the accuracy of what is submitted, so it is sensible to review the figures and computation before filing. Working with a professional can help ensure the tax adjustments, disclosures and supporting schedules are consistent with your underlying records.

What happens if a company files its CT600 late?

If a Company Tax Return is submitted after its filing date, HMRC may charge penalties and interest, and the company may face follow-up correspondence. The exact consequences depend on how late the return is and on HMRC's published guidance at the time, so it is best to act quickly if you think a date will be missed. If there is a genuine reason for the delay, it may be worth contacting HMRC directly. Getting your records and accounts finalised early is the simplest way to avoid the issue altogether.