─── Specialist Micro-Entity Accountants In The UK

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

Professional CT600 Tax Return Filing in Armagh helps your company set out its Corporation Tax position and submit a Company Tax Return to HMRC accurately and on time. It is worth being clear from the outset that a CT600 is not the same thing as your statutory accounts: your accounts are filed with Companies House, while the CT600 is the tax return submitted to HMRC, reporting the company’s Corporation Tax position for an accounting period. Good CT600 Tax Return Filing brings the two together properly — it starts with your accounting figures, applies the tax adjustments needed to arrive at taxable profit, builds the Corporation Tax computation that supports the figures, and submits the completed return to HMRC electronically. You get a clear explanation of what has been included and why, help sorting out the records behind the numbers, and a straightforward process that takes the administrative weight off your desk so you can get on with running the business.

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
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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
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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
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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 Does a CT600 Mean for a Micro-Entity Company?

There is no separate official “micro-entity CT600” form. HMRC uses a single Company Tax Return — the CT600 — for companies within the Corporation Tax system, and that form applies regardless of how small the company is. “Micro-entity” is an accounting classification, based on size criteria, that affects how a company’s statutory accounts are prepared and filed with Companies House; it is not a tax status and it does not create a different Corporation Tax return. A micro-entity company can still have Corporation Tax obligations, and where a return is required it must file a CT600 with HMRC. That filing is separate from the statutory accounts and from other obligations such as a Confirmation Statement or a VAT Return. The company’s accounting records and accounts usually form the starting point for the Corporation Tax calculation, but they are not simply copied across. Taxable profit can differ from accounting profit because the Corporation Tax computation may require adjustments — for example, adding back expenses that are not allowable for tax, or claiming capital allowances instead of deducting depreciation — before the taxable profit and any Corporation Tax liability are determined. It is also worth remembering that filing the CT600 and paying any Corporation Tax due are separate obligations: the return reports the position, while the payment settles what is owed, and the two are handled on different timetables. Not every micro-entity will have a Corporation Tax liability, and whether a return is required depends on the company’s own circumstances and on HMRC’s requirements, so it is worth checking rather than assuming either way.
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.

Take the Pressure Out of CT600 Tax Return Filing in Armagh

Working out taxable profit is rarely as simple as reading the bottom line of your accounts, and the Corporation Tax computation behind a CT600 often means adding back disallowable expenses, claiming capital allowances and keeping a clear audit trail for every adjustment. If that sounds like the kind of task that keeps slipping to the bottom of the list, Micro Entity Accounts can take it on for you. We prepare CT600 submissions, build the supporting Corporation Tax computation, review the tax adjustments with you, and file the Company Tax Return with HMRC, all with clear, transparent pricing and a straightforward process from start to finish. Get in touch to talk through your company’s position and get your CT600 Tax Return Filing in hand.

─── 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 HMRC uses for a Company Tax Return. It is the official way a company reports its Corporation Tax position for an accounting period, covering the income, gains, deductions and reliefs that feed into taxable profit, along with the resulting Corporation Tax liability. The CT600 is submitted to HMRC, not to Companies House, and it is normally supported by a Corporation Tax computation and by accounts information. The figures in the return usually start from the company's accounts, but they are not identical to them, because the tax calculation applies adjustments to move from accounting profit to taxable profit.

No, they are two different documents with two different purposes and two different recipients. Statutory accounts are prepared under an accounting framework and filed with Companies House as part of the public record. A CT600 is a tax return submitted to HMRC that reports the company's Corporation Tax position. The accounts are often used as the starting point for the tax return, but the CT600 also needs a Corporation Tax computation showing how the accounting figures were adjusted to reach taxable profit. Filing one does not satisfy the obligation to file the other, so both need to be dealt with separately.

It may well do. Being a micro-entity is an accounting classification that affects how the statutory accounts are prepared and filed; it does not remove a company from the Corporation Tax system or create a separate type of tax return. Where a company has taxable profits, or where HMRC has issued a notice requiring a return, a Company Tax Return is likely to be needed. Whether Corporation Tax is actually payable depends on the company's own taxable position and circumstances, so a company can have a filing obligation even in a period where no tax is due. It is always worth confirming your position rather than assuming.

Yes, although the two are prepared together and depend on each other. The Corporation Tax computation is the working document: it starts with the accounting profit, lists the adjustments such as disallowable expenses, capital allowances and reliefs, and arrives at the taxable profit and the tax figure. The CT600 is the return form itself, which carries the summary figures, the declarations and the company's details to HMRC. In practice the computation is what supports the entries made on the return, so both need to be consistent with one another.

The essentials are the company's accounting records for the accounting period, including income, costs and the resulting profit figures, plus the balance sheet information drawn from the accounts. Beyond that, it helps to have details of anything that may need adjusting for tax, such as expenses that are not allowable, capital expenditure that may qualify for capital allowances, losses brought forward, and any reliefs being claimed. You will also need the company's registration details, its Unique Taxpayer Reference, and the start and end dates of the accounting period. If you are missing some of this, it can usually be pulled together from the bookkeeping, and we will tell you what is needed at the outset.

Taxable profit is not simply the profit shown in the accounts. The calculation normally begins with the accounting profit and then applies adjustments in either direction. Common adjustments include adding back expenses that are not deductible for tax purposes, removing depreciation and claiming capital allowances on qualifying assets instead, and accounting for items such as losses brought forward or reliefs the company is entitled to. The result is the taxable profit, which is then used to work out the Corporation Tax position using the rates that apply to the period. Because the adjustments vary from company to company, the computation needs to reflect the actual transactions and records rather than a standard formula.

No, they are separate obligations. Filing the CT600 is about reporting: it tells HMRC what the company's taxable profit and Corporation Tax liability are for the period. Paying Corporation Tax is about settling the amount due, and it is handled separately, with its own timetable. A company can therefore have filed its return and still owe Corporation Tax, or it can have no tax to pay while still being required to file a return. Keeping the two distinct helps you avoid assuming that one has taken care of the other.

Yes. A company can appoint an accountant or tax agent to prepare the return and submit it to HMRC on its behalf, and the company can authorise that agent to deal with HMRC for Corporation Tax matters. Even where an agent handles the filing, the company remains responsible for the accuracy of the information provided, which is why a proper review of the records and the adjustments matters. In practice this is how most CT600 Tax Return Filing is handled: the company supplies the records, the agent prepares the computation and return, and the return is filed electronically once everything has been checked and agreed.