─── Specialist Micro-Entity Accountants In The UK

CT600 Tax Return Filing in Liskeard — Expert Preparation and Submission of Your Company Tax Return to HMRC

A CT600 is the Company Tax Return that a UK company submits to HMRC to report its Corporation Tax position for an accounting period. Our CT600 Tax Return Filing service in Liskeard is built around taking the guesswork out of that process: we work through your accounting records, prepare the Corporation Tax computation, consider the tax adjustments that may be needed to move from accounting profit to taxable profit, and submit the completed Company Tax Return to HMRC on the company’s behalf. It is important to be clear about what this service is and is not. The CT600 is not your statutory accounts — those are separate documents prepared under an accounting framework and filed with Companies House — and it is not a Confirmation Statement or a VAT Return either. Instead, the CT600 sits alongside those obligations as part of your company’s overall reporting requirements, drawing on your accounts and records to report the tax position accurately. Professional support here means clearer figures, fewer loose ends, and a filing process that is handled methodically from start to finish, so you know what has been prepared, what has been submitted, and where your company stands.

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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Based on 302 reviews
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Ayotunde Rufai profile picture
Ayotunde Rufai
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Best accountants we've ever had. Umer is ace, and makes everything easy and transparent.
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Sofia profile picture
Sofia
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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
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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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Pete Wrist profile picture
Pete Wrist
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Sterling work. Many thanks to Muhammad and the team for all their help and expertise
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Hansen Personal Training
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We have been a client for years - very quick responsive and personalised service
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Jamie Fletcher
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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 profile picture
Mansur Liman
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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
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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
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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
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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 Corporation Tax Filing?

There is no separate official “micro-entity CT600” form. The CT600 is the standard Company Tax Return that companies of all sizes use to report their Corporation Tax position to HMRC, and a company that operates as a micro-entity uses exactly the same return. What does differ for smaller companies is how the statutory accounts are prepared: a company that meets the relevant size criteria may be able to prepare simpler accounts under a micro-entity accounting framework, which affects the format and level of detail in the accounts, but it does not by itself determine the company’s Corporation Tax liability. A micro-entity company may still have Corporation Tax obligations, and where a return is required, the Company Tax Return (CT600) is how that position is reported to HMRC. The CT600 is separate from the statutory accounts filed with Companies House, although the figures in the accounts and the company’s accounting records are typically the starting point for the Corporation Tax calculation. From there, adjustments may be needed, which means taxable profit can differ from accounting profit — for example where certain costs are treated differently for tax purposes, or where income and expenses fall into a different period for tax than for accounting. It is also worth separating two ideas that are often confused: filing the CT600 and paying any Corporation Tax that is due are distinct obligations with their own timings, and submitting the return does not in itself settle the tax. Whether a company owes Corporation Tax at all depends on its own circumstances and taxable position.
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.

CT600 Tax Return Filing Service Works

─── How It Works

How Our CT600 Tax Return Filing Service Works

01

Share Your Company Records

Provide the accounting records and relevant company information required to prepare the return.

02

Review Your Accounting Figures

Review the financial information and identify relevant Corporation Tax adjustments.

03

Prepare the CT600

Prepare the Company Tax Return and supporting tax computation based on the company's circumstances.

03

Prepare the CT600

Prepare the Company Tax Return and supporting tax computation based on the company's circumstances.

04

Review & Approve

You review the information and confirm the return before submission.

05

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 Liskeard

Preparing a Company Tax Return is rarely as straightforward as it looks. You may be comfortable with your bookkeeping, yet still find yourself second-guessing how accounting profit translates into taxable profit, which costs are allowable, and what HMRC actually expects to see in the return. That is exactly where Micro Entity Accounts can help. We support companies with CT600 preparation, Corporation Tax computation, a review of the tax adjustments that may be required, and submission of the completed Company Tax Return to HMRC, all handled with clear, transparent pricing and without the jargon. If your year end has passed, your records are piling up, or you simply want your Corporation Tax filing dealt with properly so you can get back to running the business, get in touch with our team in Liskeard and we will talk you through the next steps.

─── 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.

 

A CT600 is the form used to submit a Company Tax Return to HMRC. It sets out a company's Corporation Tax position for an accounting period, including the figures on which the calculation is based, and it is filed electronically with HMRC. The CT600 is the return — it is not the payment itself, and it is not the same document as your statutory accounts. Think of it as the formal report of your company's tax position that HMRC expects to receive where a return is required.

A UK company that is within the charge to Corporation Tax will normally need to file a Company Tax Return for each accounting period, even if no tax turns out to be payable. Whether a specific company has to file depends on its own circumstances — for example, whether it has been trading, whether it has been dormant for Corporation Tax purposes, or whether it has recently been incorporated or has changed its accounting period. If you are unsure whether a return is due, it is worth checking your position rather than assuming, because the obligation and the payment of any tax are separate matters.

Yes, they are two separate filings with two separate purposes. Statutory accounts are prepared under an accounting framework and filed with Companies House, along with the company's other Companies House obligations such as the Confirmation Statement. The CT600 is a Corporation Tax Return submitted to HMRC. The accounts and the tax return are connected, because the accounting figures usually provide the starting point for the tax calculation, but they are not the same document and meeting one deadline does not automatically satisfy the other.

Potentially, yes. There is no separate micro-entity version of the CT600, and operating as a micro-entity does not remove Corporation Tax filing obligations where they apply. A company that qualifies for micro-entity accounting may prepare simpler statutory accounts, but that accounting framework does not on its own decide whether Corporation Tax is due or whether a Company Tax Return must be filed. Not every micro-entity will owe Corporation Tax, and the company's own trading activity and taxable position will determine what is required. Where a return is required, the CT600 is the form used to report that position to HMRC.

No. The Corporation Tax computation is the working paper that shows how the company's accounting profit is adjusted to arrive at taxable profit and, from there, the Corporation Tax liability. It sets out items such as disallowable expenses, capital allowances and other tax adjustments, with an explanation of each. The CT600 is the return that reports the outcome to HMRC. The computation supports the figures entered on the return, so in practice the two are prepared together, but they are distinct pieces of work with different roles.

Taxable profit starts with the company's accounting profit for the period and is then adjusted for tax purposes. Typical adjustments might include adding back expenses that are not allowable for tax, deducting items that are treated differently under the tax rules, and accounting for capital allowances instead of or alongside depreciation. The exact adjustments depend entirely on the company's transactions, so no two computations look the same. Because of this, taxable profit often differs from accounting profit, which is why a review of the underlying records matters before the return is submitted.

No — filing and payment are separate obligations with their own timings. Submitting a Company Tax Return tells HMRC what the company's position is; settling any Corporation Tax due is a separate action. A company can file on time and still have tax to pay, or file a return showing no tax payable for that period. It is worth tracking both, and if you are unsure what is due, your computation and return together will show the figure that needs to be paid.

Most CT600 preparations begin with the company's accounting records and a set of accounts or trial balance for the accounting period, along with details of income, expenses, fixed asset additions and disposals, and any other transactions that affect the tax position. Useful extras include bank statements, invoices supporting significant items, details of any loans or directors' transactions, and correspondence from HMRC. With that information, a Corporation Tax computation can be prepared, the necessary adjustments considered, and the return completed for submission. Having records organised in advance usually makes the whole process quicker and smoother.