─── Specialist Micro-Entity Accountants In The UK

CT600 Tax Return Filing in Leamington Spa: Prepare and Submit Your Company Tax Return to HMRC

If your company needs to report its Corporation Tax position to HMRC, CT600 Tax Return Filing is the process that gets it done. Our Leamington Spa service supports limited companies through preparing the CT600, reviewing the figures that sit behind the Corporation Tax computation, and submitting the Company Tax Return to HMRC accurately and on time. It is worth being clear about what the CT600 is and is not: it is a tax return submitted to HMRC, not the statutory accounts you file with Companies House, and not your Confirmation Statement or VAT Return, which are separate obligations with their own requirements. We help you keep those filings distinct, use your accounting records as the starting point for taxable profit, and take the administrative weight off your shoulders so that Corporation Tax reporting does not sit at the bottom of your to-do list.

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 the CT600 Means for a Micro-Entity Company in Leamington Spa

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 to companies generally, whatever their size. A company that operates as a micro-entity, keeping simpler records and preparing accounts under a small-company regime, can still have Corporation Tax obligations and may need to submit a CT600 if HMRC requires a Company Tax Return for the accounting period. The CT600 is separate from the statutory accounts filed with Companies House, so filing one does not replace the other. Where a return is needed, the company’s accounting records and prepared accounts are usually the starting point for the Corporation Tax calculation, but the taxable profit used on the return can differ from the accounting profit shown in the accounts. That happens because the computation may require adjustments, such as adding back disallowable expenditure or adjusting for items treated differently for tax. Equally, having a micro-entity company does not automatically mean Corporation Tax is payable — whether any tax is due depends on the company’s own circumstances and taxable position. It is also important to keep two things separate: submitting the CT600 to HMRC is a filing obligation, while paying any Corporation Tax due is a payment obligation, and they are handled as distinct steps.

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.

Make Your CT600 Tax Return Filing in Leamington Spa Straightforward

Preparing a Company Tax Return can quickly become complicated when you are also running the business. Deciding which costs are allowable, turning accounting profit into taxable profit, keeping Corporation Tax records organised and getting everything to HMRC in the right format all take time and care. Micro Entity Accounts can take that work off your desk, covering CT600 preparation, the Corporation Tax computation, a review of potential tax adjustments and the HMRC filing itself for companies in Leamington Spa and the surrounding area. If your filing is approaching or you simply want a clearer picture of your Corporation Tax position, get in touch with us 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.

What is a CT600 and who needs to file one?

A CT600 is the Company Tax Return form used to report a company's Corporation Tax position to HMRC. It sets out the company's income, gains, deductions and reliefs for an accounting period and shows how the Corporation Tax liability has been calculated. It is filed by companies that HMRC requires to submit a Company Tax Return, which typically includes most limited companies and other incorporated bodies that are within the scope of Corporation Tax. Whether a particular company must file for a given period depends on its circumstances, so it is worth checking your position rather than assuming.

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

Yes, they are two separate filings with two different bodies. The CT600 is a Corporation Tax Return submitted to HMRC, while statutory accounts are the annual accounts filed at Companies House under the Companies Act requirements. They are prepared from much of the same underlying bookkeeping, but they serve different purposes, follow different rules and usually have different filing dates. Sending accounts to Companies House does not satisfy your Corporation Tax filing obligation, and filing a CT600 does not replace your Companies House filing.

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

Not necessarily, and the answer depends on the company's own circumstances. Operating as a micro-entity is an accounting and reporting matter; it does not create a separate type of tax return and it does not automatically remove Corporation Tax obligations. Where HMRC requires a Company Tax Return for the period, the company needs to submit a CT600, even though its accounts may be prepared in a simplified form. Equally, a micro-entity company is not automatically liable to pay Corporation Tax — whether any tax is payable depends on its taxable position.

Is a CT600 different from a Corporation Tax computation?

They are related but not the same thing. The Corporation Tax computation is the working paper that starts with the company's accounting profit and applies the necessary tax adjustments to arrive at taxable profit and the resulting Corporation Tax figure. The CT600 is the formal return that reports those figures to HMRC. In practice the two are prepared alongside each other, because the numbers from the computation are what get entered on the tax return.

What information is needed to prepare a CT600?

We normally need the company's accounting records and prepared accounts for the period, details of income, expenses, capital purchases and disposals, any other income such as interest, and information about expenses that may not be allowable for tax. Details of previous tax losses, any reliefs being claimed, and correspondence from HMRC are also helpful. If you are unsure what applies to your company, we can talk it through and let you know what we need to move forward.

How is taxable profit calculated from accounting profit?

Accounting profit is the figure shown in the company's accounts after applying accounting rules. Taxable profit is calculated separately in the Corporation Tax computation, starting from that accounting profit and making adjustments. Typical adjustments include adding back expenditure that is not allowable for tax, deducting capital allowances where they are claimed instead of depreciation, and dealing with items that are treated differently for tax than for accounts. This is why a company can be profitable in its accounts but show a different taxable profit — sometimes lower, sometimes higher.

Is filing a CT600 the same as paying Corporation Tax?

No. Submitting the CT600 is the act of reporting the company's Corporation Tax position to HMRC, while paying Corporation Tax is a separate obligation that has its own timetable. A company may have nothing to pay for a period, or it may have a liability to settle. Because filing and payment are handled separately, it is important not to assume that submitting the return automatically deals with any tax due.

What happens if a company files its CT600 late?

HMRC can charge penalties and interest when a Company Tax Return is filed after its due date, and the consequences can build the longer the return remains outstanding. The exact position depends on how late the filing is and on the company's circumstances, so it is best to check HMRC's published guidance or take advice rather than rely on assumptions. If you think a filing has been missed or is at risk, getting the return prepared and submitted as soon as possible is usually the sensible first step.