─── Specialist Micro-Entity Accountants In The UK

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

CT600 Tax Return Filing is the process of preparing your company’s Company Tax Return and submitting it to HMRC so your Corporation Tax position is reported accurately and on time. If your company is based in Luton, professional support can take the strain out of working through your accounting records, reviewing the figures for tax adjustments, and building a Corporation Tax computation that reflects your taxable profit rather than simply your accounting profit. It is important to understand that a CT600 is not the same as the statutory accounts you file with Companies House — the accounts and the tax return are separate obligations, even though they draw on the same underlying records. Confirmation Statements, VAT Returns and other filings sit outside the CT600 process altogether. Working with an experienced team gives you clarity on what HMRC needs, confidence that the figures have been checked, and the convenience of having the return prepared and filed on your behalf. We can support companies across Luton and beyond with CT600 preparation, Corporation Tax computation work, tax adjustment reviews and the submission of the Company Tax Return to HMRC.

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

Find Your Company

Search for your company to continue with the accounting services

Start typing to search for companies...

Results

Years filing UK company accounts

0 +

Micro entity accounts submitted

0 +

Verified Google reviews

0 +

Typical Filing Turnaround

0 Days

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 
    
 
 
 
   
 
 
       Posted on Google  
   
   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.
  
 
      Posted on Google  
   
   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.
  
 
      Posted on Google  
   
   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.
  
 
      Posted on Google  
   
   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
  
 
      Posted on Google  
   
   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
  
 
      Posted on Google  
   
   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.
  
 
      Posted on Google  
   
   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
  
 
      Posted on Google  
   
   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.
  
 
      Posted on Google  
   
   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.
  
 
      Posted on Google  
   
   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 a CT600 Means for a Company That Operates as a Micro-Entity

There is no separate official “micro-entity CT600” form — a micro-entity company that is within the charge to Corporation Tax uses the same Company Tax Return, the CT600, as any other company. If HMRC requires your company to file a Company Tax Return, you will need to complete and submit a CT600 reporting your Corporation Tax position for the relevant accounting period. That filing obligation is separate from your statutory accounts: the accounts are the formal financial statements prepared for the company and, depending on the company’s circumstances, filed at Companies House, while the CT600 is submitted to HMRC. The two are connected because the figures in your accounting records and accounts typically form the starting point for the Corporation Tax calculation, but they are not the same document and they are not filed with the same body. Where a company prepares micro-entity accounts, its accounting profit is still just the starting point: Corporation Tax is calculated on taxable profit, and the computation may need adjustments — for example to add back disallowable expenditure, account for capital allowances or deal with income and expenses treated differently for tax than in the accounts. The accounting framework used does not by itself determine the amount of Corporation Tax payable. It is also worth separating the filing obligation from the payment obligation: submitting the CT600 and paying any Corporation Tax due are distinct responsibilities, and not every micro-entity company will have a Corporation Tax liability — whether tax is payable depends on the company’s 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.

─── 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 Handle Your CT600 Tax Return Filing in Luton

Preparing a Company Tax Return can quickly become complicated, especially when you need to move from accounting profit to taxable profit and keep a clear audit trail of every adjustment along the way. If your records are scattered, the Corporation Tax computation feels daunting, or you simply do not want to spend evenings working through HMRC’s requirements, Micro Entity Accounts can help. We support companies with CT600 preparation, Corporation Tax computation work, tax adjustment reviews and the filing of the Company Tax Return with HMRC, so your figures are organised, your reporting is consistent and the administrative burden sits with us rather than with you. Get in touch to talk through your company’s position and arrange your CT600 Tax Return Filing in Luton.

─── 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 brings together the company's results for an accounting period, the Corporation Tax computation that supports the figures, and the disclosures HMRC requires. Once submitted, the CT600 forms the basis on which HMRC assesses the company's Corporation Tax position for that period. It is a tax filing, not a set of financial statements.

Who needs to file a CT600?

Broadly, a company that is within the charge to Corporation Tax and has been required by HMRC to deliver a Company Tax Return needs to complete and submit a CT600 for the relevant accounting period. HMRC can issue a notice to deliver a return even where the company believes no tax is due, and not trading does not automatically remove the obligation. Because the position depends on each company's circumstances and on what HMRC has issued, it is worth checking your specific situation before assuming a return is or is not required.

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

Yes. The CT600 is a tax return submitted to HMRC, while statutory accounts are the company's formal financial statements, which may also need to be filed at Companies House. They serve different purposes, go to different bodies and follow different rules, although they are prepared from the same underlying accounting records. Filing one does not satisfy the obligation to file the other, so both need to be dealt with separately.

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

It can do. There is no separate micro-entity version of the CT600, so a company that qualifies as a micro-entity still uses the standard Company Tax Return where HMRC requires one to be filed. Preparing micro-entity accounts does not by itself remove the need to report to HMRC, and it does not by itself determine whether Corporation Tax is payable. Whether a return is required, and whether tax is due, depends on the company's own circumstances and its taxable position for the period.

How is taxable profit calculated from accounting profit?

Taxable profit usually starts with the accounting profit shown in the company's accounts, but it is rarely the final figure. The Corporation Tax computation may require adjustments: expenditure that is not allowable for tax purposes may be added back, capital allowances may replace depreciation, and income or costs treated differently in the accounts may be adjusted. The result is the taxable profit on which Corporation Tax is calculated, which can differ from the accounting profit reported in the accounts.

Is filing a CT600 the same as paying Corporation Tax?

No. Filing the Company Tax Return and paying any Corporation Tax that is due are separate obligations, and they can fall due at different times. Submitting an accurate CT600 tells HMRC what the company's position is; it does not itself settle the liability. A company could file its return and have nothing to pay, or have a liability to settle separately. Keeping both in view helps avoid unnecessary correspondence with HMRC.

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

Yes. A company can appoint an accountant or tax adviser to prepare the Corporation Tax computation, complete the CT600 and submit the Company Tax Return to HMRC on its behalf, usually acting as the company's agent. This is often useful where the tax adjustments are involved, where records need organising, or where the directors would rather focus on running the business. The company remains responsible for the accuracy of what is filed, which is why a careful review of the figures matters.

What happens if a company files its CT600 late?

HMRC expects a Company Tax Return to be filed by the statutory filing date that applies to the company's accounting period. Filing after that date can lead to penalties and, where tax remains unpaid, interest, with the outcome depending on how late the return is and on the company's circumstances. The figures are set by HMRC rather than by us, so we cannot promise a particular outcome, but filing early and keeping your records in order is the most sensible way to reduce the risk of problems.