─── Specialist Micro-Entity Accountants In The UK

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

CT600 Tax Return Filing is how a UK company reports its Corporation Tax position to HMRC. If your company is based in Grimsby or the surrounding area, professional support with CT600 Tax Return Filing means your accounting figures are reviewed, the tax adjustments that affect your taxable profit are considered, and a completed Company Tax Return is submitted to HMRC accurately and on time. It is important to understand that the CT600 is not the same thing as the statutory accounts you file with Companies House. Statutory accounts are prepared under an accounting framework and filed separately, while the CT600 is a tax return. The figures in your accounts are usually the starting point for the Corporation Tax computation, but taxable profit can differ from accounting profit once items such as disallowable expenses, capital allowances and other adjustments are taken into account. Working with an experienced team takes the guesswork out of the process, keeps your Corporation Tax records organised, and gives you a clear picture of what has been filed and why.

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 .

CT600 Tax Return Filing for Micro-Entity Companies Explained

There is no separate HMRC form called a “micro-entity CT600”. The CT600 is the Company Tax Return used by companies to report their Corporation Tax position, and it applies to companies generally, whatever their size. What matters for a micro-entity is not a different form, but the way its accounts are prepared and the tax position it reports. A micro-entity company is one that qualifies to prepare and file accounts under the micro-entities regime, commonly using the FRS 105 framework, which allows simplified accounts and reduced disclosures. That accounting choice affects how the statutory accounts look — it does not by itself determine the company’s Corporation Tax liability. Where a company has a Corporation Tax obligation, it may need to submit a Company Tax Return to HMRC, and the accounts and accounting records it keeps are typically the starting point for the Corporation Tax computation. Taxable profit is not always the same as accounting profit: the computation may require adjustments, for example adding back expenditure that is not allowable for tax, or claiming reliefs and allowances that reduce taxable profit. It is also worth noting that not every micro-entity will owe Corporation Tax — whether tax is payable depends on the company’s own circumstances and taxable position. Finally, filing a CT600 and paying any Corporation Tax due are two separate obligations: submitting the return does not, in itself, settle the tax liability. Professional CT600 Tax Return Filing in Grimsby brings these strands together, so the accounts, the tax adjustments and the HMRC submission are all handled consistently.

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.

Take the Stress Out of CT600 Tax Return Filing in Grimsby

Preparing a Company Tax Return can quickly become complicated: you need your accounts in order, a clear Corporation Tax computation, and confidence that the adjustments turning accounting profit into taxable profit have been dealt with properly. Micro Entity Accounts helps companies in Grimsby and across the UK take that burden off their plate, with support covering CT600 preparation, Corporation Tax computation, a review of tax adjustments, and submission of the Company Tax Return to HMRC. We keep the process straightforward, explain what is being filed and why, and make sure your Corporation Tax records stay organised along the way. If you would like your CT600 Tax Return Filing handled by people who do this every day, get in touch with Micro Entity Accounts and let us take it from here.

─── 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 Company Tax Return form used to report a company's Corporation Tax position to HMRC. It sets out the company's income, allowable deductions, taxable profit and the resulting Corporation Tax figure, along with supplementary pages where the company's circumstances require them. It is a tax return submitted to HMRC, not a set of accounts, and it is normally prepared alongside a Corporation Tax computation that shows how the taxable profit figure was arrived at from the accounting figures.

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

Yes, they are two separate filings with two different purposes and two different recipients. Statutory accounts are prepared under an accounting framework and filed at Companies House, showing the company's financial position and performance. The CT600 is a tax return filed with HMRC, reporting the company's Corporation Tax position. The two are related because your accounting figures often form the starting point for the tax computation, but one does not replace the other, and filing your accounts does not mean your Company Tax Return has been submitted.

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

It depends on the company's circumstances. Being a micro-entity affects how the statutory accounts are prepared — it does not create a separate or different tax return. If a company is within the charge to Corporation Tax and HMRC has issued a notice to deliver a return, it will usually need to submit a Company Tax Return. Not every micro-entity will have Corporation Tax to pay; the company's own income, deductions and taxable position determine whether a liability arises. Because the rules depend on individual facts, it is worth checking your position rather than assuming either way.

Can a company file its CT600 without filing its statutory accounts?

The Corporation Tax return and the statutory accounts are separate filings with separate obligations, so the deadlines and requirements do not automatically run in step. In practice, the accounting figures are needed to prepare the tax computation that underpins the CT600, so the accounts work is normally completed first, even if the Companies House filing happens separately. Your accountant can help you sequence both filings sensibly and keep track of what has been submitted where.

What information is needed to prepare a CT600?

Typically you will need the company's accounting records and finalised figures for the period, details of income and expenditure, information on capital purchases that may attract allowances, records of any expenses that may need to be added back for tax purposes, and details of any losses brought forward. It also helps to have prior year returns and computations to hand so that carried-forward figures are consistent. The more organised your records, the smoother the CT600 Tax Return Filing process tends to be.

How is taxable profit calculated from accounting profit?

Taxable profit usually starts with the company's accounting profit for the period and is then adjusted. Common adjustments include adding back expenditure that is not allowable for tax, deducting capital allowances in place of accounting depreciation, and dealing with items such as losses or reliefs. The result is the taxable profit on which Corporation Tax is calculated. This is why a company's accounting profit and its taxable profit can be different figures, and why a properly prepared Corporation Tax computation matters.

Is filing a CT600 the same as paying Corporation Tax?

No. Submitting the Company Tax Return and paying any Corporation Tax due are separate obligations with their own arrangements. Filing the CT600 reports your position to HMRC; it does not automatically settle the tax. A company may need to arrange payment separately, and not every company will have tax to pay for a given period. Reviewing both the filing and the payment position together helps avoid any confusion later.

What happens if a company files its CT600 late?

HMRC can issue penalties and charge interest where a Company Tax Return is filed late or where Corporation Tax is paid late. The amount involved depends on factors such as how late the filing or payment is and HMRC's published rules at the time. The practical answer is to file as early as you can and keep your records in order, so that nothing is delayed at the last minute. If you are concerned about a late or overdue return, it is sensible to get advice on your specific position rather than waiting.