─── Specialist Micro-Entity Accountants In The UK

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

CT600 Tax Return Filing in Thirsk means preparing and submitting your company’s Corporation Tax Return to HMRC accurately and with a clear audit trail behind every figure. Professional support helps you pull together the accounting records, work through the tax adjustments that turn accounting profit into taxable profit, and present the resulting position in a CT600 that properly reflects your company’s circumstances. It is worth being clear from the outset that the CT600 is not the same thing as your statutory accounts: those are prepared under an accounting framework and filed separately with Companies House, whereas the CT600 goes to HMRC. Working with an accountant gives you a second pair of eyes on the numbers, a plain-English explanation of what has been claimed and why, and a straightforward route to submitting your Company Tax Return without wrestling the paperwork alone.

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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   Pete Wrist 
 
 
 
 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 .

What Is a CT600? Company Tax Returns and Micro-Entity Companies Explained

A micro-entity is simply a company that falls within the smallest size category under UK accounting rules, and it is worth stating plainly that there is no separate official “micro-entity CT600” form. The CT600 is the standard form HMRC uses for a Company Tax Return, and it applies to companies generally, whatever their size — what tends to differ for a smaller company is how the accounts are prepared and what is disclosed at Companies House, not the existence of a different tax return. A company that qualifies as a micro-entity can still have Corporation Tax obligations, and where it does, it will normally need to prepare and submit a Company Tax Return (CT600) to HMRC for its accounting period. Even where no tax ends up being payable, a filing obligation can still arise — often because HMRC has issued a notice to deliver a return — so it is worth checking rather than assuming the company sits outside the system. The starting point for the CT600 is usually the company’s accounts and accounting records, but the figures in those accounts are not automatically the figures used for tax. A Corporation Tax computation adjusts accounting profit to arrive at taxable profit: depreciation and certain non-business or entertaining costs may be added back, and reliefs such as capital allowances may be claimed where the rules allow. Taxable profit can therefore differ from the accounting profit shown in the accounts, which means Corporation Tax may be payable even when the accounts look modest, or no tax may be due even where a profit is reported, depending on the company’s particular circumstances. It is equally important to keep filing and payment separate: submitting a CT600 is a reporting obligation, while paying Corporation Tax is a distinct obligation with its own deadline, and meeting one does not automatically satisfy the other. Accounts preparation and Corporation Tax filing are related but separate processes, and a micro-entity accounting framework such as FRS 105 does not by itself determine the company’s Corporation Tax liability.

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 Thirsk

Preparing a Company Tax Return rarely feels straightforward when you are also running a business. There is accounting profit to reconcile, tax adjustments to identify, Corporation Tax records to keep organised and an HMRC filing to complete — and it is easy to lose several evenings to it. Micro Entity Accounts can take that off your desk, covering CT600 preparation, the Corporation Tax computation, a review of the adjustments that move you from accounting profit to taxable profit, and submission of the Company Tax Return to HMRC on your company’s behalf. If you would rather spend your time on the business than on the return, get in touch and we will talk through exactly what your company needs.

─── 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?

The CT600 is the form HMRC uses for a Company Tax Return. It is the document through which a UK company reports its Corporation Tax position for an accounting period — covering income, expenses, profits and any tax due — supported by the tax computations and, in most cases, a set of accounts. It is submitted to HMRC, not to Companies House, and it is the formal way of reporting a company's Corporation Tax position for the period. You may also see it described as a Corporation Tax Return or a Company Tax Return.

Who needs to file a CT600?

A company will generally need to file a Company Tax Return if HMRC has issued a notice to deliver one, or if it has a Corporation Tax liability or taxable activity in the period. Some companies with no tax to pay still have a filing obligation, and dormant or non-trading companies may face different requirements. Because the answer depends on the company's own circumstances and any notice received from HMRC, it is worth confirming your position rather than assuming you are outside the system.

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

Yes — they are two separate filings, made to two different organisations for two different purposes. Statutory accounts are prepared under an accounting framework and filed at Companies House, where they form part of the public record. The CT600 is filed with HMRC and reports the company's Corporation Tax position. The accounts figures often form the starting point for the Corporation Tax computation, but they are adjusted for tax purposes, and the two filings can have different deadlines and different obligations attached to them.

Is a CT600 different from a Corporation Tax computation?

They work together, but they are not the same thing. The Corporation Tax computation is the working that starts with the accounting profit in the accounts and adjusts it — adding back disallowable items such as depreciation or certain entertaining costs, and claiming reliefs such as capital allowances where the rules allow — to arrive at the taxable profit and the tax payable. The CT600 is the return form that reports those figures to HMRC. In practice the computation is prepared first, then reflected in the CT600 submission.

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

There is no separate official micro-entity CT600 — the CT600 is the same Company Tax Return form used across companies. A company that qualifies as a micro-entity can still have Corporation Tax obligations and, where it does, will normally need to submit a CT600 to HMRC for its accounting period. The accounting framework used, such as FRS 105, affects how the accounts are prepared and filed at Companies House; it does not by itself determine the Corporation Tax liability or remove the need for a Company Tax Return.

Can a company file its CT600 without filing its accounts?

The CT600 is supported by accounts prepared for tax purposes, which are usually the company's statutory accounts, so those figures generally need to exist before the return can be finalised. Importantly, filing the CT600 with HMRC does not discharge the separate obligation to file statutory accounts at Companies House — and filing accounts at Companies House does not satisfy HMRC's requirement. Both need to be dealt with, and because they can run to different deadlines it is sensible to plan them together.

Is filing a CT600 the same as paying Corporation Tax?

No. Filing the return is a reporting obligation, while paying Corporation Tax is a separate obligation with its own deadline, which is not necessarily the same date. A company can submit a return showing tax due and settle the liability separately, or submit a return confirming no tax is payable while still having a filing obligation for that period. Keeping track of both dates, and of the records behind them, is part of good Corporation Tax housekeeping.

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

Yes — companies commonly ask an accountant to prepare and submit the Company Tax Return on their behalf. To do that, we would typically need your accounting records and final accounts for the period, the accounting period start and end dates, details of income and expenses, any asset additions or disposals, information on losses brought forward and reliefs claimed, along with your company registration details and any Corporation Tax already paid. From there we prepare the computation, review the adjustments and submit the CT600 to HMRC, keeping you informed of the position along the way.