If you’re building your own home, you may be able to claim VAT on new build and recover thousands of pounds paid …
Corporation Tax Services
Corporate Tax Advisors
Expert Corporation Tax Services to Keep Your Business Compliant and TaxEfficient.
The CT600 form, a company tax return, is a legal necessity for every limited company based in the UK. It states your company’s amounts received and spent during a period and how corporation tax has been computed.
Corporation tax can take up a substantial part of your trading costs, with harsh penalties for businesses that fail to pay the right amounts. We can take away the administrative burden by providing a number of crucial support services.
Why Choose IBISS & CO for Corporation Tax Services?

Over 50 years of experience in UK tax legislation.

Specialists in cross-border and industry-specific tax planning (UAE-UK).

Regulated by the ICAEW.

Trusted by over 1,000 companies across the UK and UAE.

Transparent pricing and tailored advice.
Our Full Range of
Corporation Tax Services
Corporation Tax Compliance
- Preparing and submitting CT600 Corporation Tax Returns.
- Statutory accounts preparation and iXBRL tagging.
- Filing accounts with Companies House and HMRC.
- Registering new companies for Corporation Tax.
Strategic Corporation Tax Planning
- Efficient profit extraction strategies.
- Planning around director salary vs dividends.
- Deferring or accelerating income to optimise tax.
- Group tax planning and intra-group transfers.
Claims for Reliefs and Allowances
- R&D Tax Credits (Research & Development).
- Capital Allowances for equipment and property.
- Patent Box regime for intellectual property.
- Loss reliefs (carry back, carry forward, group relief)
International and Cross-Border Tax
- UK-UAE Double Taxation Agreement advisory.
- Structuring for overseas income and foreign branches.
- Withholding tax optimisation.
- Permanent establishment risk assessments.
Business Transactions & Exit Tax Planning
- Tax due diligence for buyers and sellers.
- Share and asset disposal planning.
- Entrepreneur Relief and Business Asset Disposal Relief
- Post sale tax efficiency planning
HMRC Enquiries and Disputes
- Handling Corporation Tax investigations.
- Voluntary disclosures to HMRC.
- Representation in appeals and penalty mitigation.
- Reviewing and correcting past CT600 returns.
Next Step
Please contact us if you need further corporation tax advice, have any questions about our Corporation tax services, or would like a free consultation or a fixed quote.
Common Corporation
Tax Mistakes to Avoid
Even small errors can lead to costly penalties or missed tax savings. Here are common pitfalls businesses make with Corporation Tax:

Late or missed CT600 filing deadlines, resulting in automatic HMRC penalties and interest charges.

Failing to keep adequate records of income, expenses, and allowances for accurate tax computations.

Overlooking valuable tax reliefs like R&D credits or capital allowances that could reduce your tax bill.

Incorrectly calculating director salaries vs dividends, leading to inefficient tax planning.

Ignoring international tax treaties, causing unnecessary double taxation on overseas income.

Assuming losses mean no filing is required — even loss-making companies must submit returns on time.

Not seeking expert advice early, which risks errors and missed opportunities for tax efficiency.
Why Acting Early Matters
Late or incorrect Corporation Tax returns can lead to HMRC penalties, interest, and increased scrutiny. Working with a qualified accountant ensures your company remains compliant, tax-efficient, and audit-ready.
Common Corporation
Tax Questions We Answer
To file your company tax return, you need to:
- Sign up for HMRC services.
- Open your company accounts & carry out your tax computations.
- Complete the CT600 form.
- You can also send your return through the Internet with the help of the HMRC’s website.
As much as a business organization wants to complete this task in-house, consulting an accountancy firm such as IBISS and Co is advised to ensure compliance and precise results.
If you still need to make your corporation tax payment on the due date, contact the HMRC as soon as possible. It is always possible to negotiate for a Time to Pay proposal, which enables you to make payments in installments depending on the agreed time.
Credits can be deducted for late submission, but the penalty may be forgiven if the client can provide a credible reason for late work. Nonetheless, HMRC is very particular about what can be considered a reasonable excuse; therefore, proof would be necessary.
For your accountancy needs and to give your business entity a legal touch in the United Kingdom with taxation laws, we at IBISS and Co. handle the following. The company tax return filing is another service for which one can seek help from our experienced team that will help your company file the tax return on time and will not let you pay a penalty. The goal remains to consult with you at every stage and offer individual recommendations for improving your organization’s tax situation and other beneficial financial solutions.
Late submissions for multiple periods attract more severe consequences, such as fines, a negative impact on the company’s image, and greater attention from HMRC. Proper filing should continue, and professional help should be sought so as not to suffer these effects.
Registering your company’s tax return on time is crucial in simplifying the financial status of the company as well as in clearing its credit status in the business market.
IBISS and CO. is at your service to assist in solving such issues with professional consultation and services adapted to your company’s requirements. Call us today and find out how you can benefit from our services concerning the taxes of your company.
We’re not in the business of providing low quotes just to get your business for the first year and then raising the fees. We want you as a long term client who trusts us to do what we say we will do. We quote what we anticipate to be a fair fee for the value provided and would only anticipate normal inflationary increases if the work stays the same. Very occasionally there may be reasons why the amount of work involved exceeded what was expected but we would sit down and discuss these with you. In some cases, where it is clear exactly what work is involved we can guarantee the fee for more than one year.
All we can say is that as accountants, you’d expect us to be a bit analytical, which is true. As such do you really think we would offer you something we couldn’t deliver that is backed up by our 100 risk free guarantee. Our clients are used to this level of service. You are also more than welcome to speak with some of our existing clients who have the experience of our service. See what our clients say.
Contact Us Online
Confused Where To Start?
Schedule a Free 15-minute discovery call by providing your contact details, mentioning your requirements, and selecting a convenient date for the call.
How our discovery call works:
- Complete Our Contact Form
- Discovery Calls Scheduled
- Receive a Tailored Proposal
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo.
Call Us
We Help Our Clients
Sole Trader

HMRC Self employed registration

Self Assessment submission

Unlimited accountancy support

Dedicated client management

VAT registration and filing - additional cost

Online accounting software - additional cost

Free Open Banking links - additional cost

List Easy bank reconciliation - additional cost

Receipt scanning app - additional cost

Business Mileage app - additional cost

Discounts on Mortgage services and Business Insurance
from £30 +VAT (Per Month)
Ltd Company

All your accountancy questions answered

Statutory Year End accounts

Corporation Tax filing

Phone and email support

Company formation, registration for company taxes & Registered Office address

Timely Company Filings

Tax Planning

Simple online accounting software

Free Open Banking links

Easy bank reconciliation

Receipt scanning app

Business Mileage app

Discounts on Mortgage services and Business Insurance
from £70 +VAT (Per Month)
Tax Advice

Income Tax Planning

Overseas Workday relief

Effective Tax planning for property landlords

Capital Gain Tax Mitigation

Inheritance tax and succession planning

Property Incorporation

Let property campaign filings

Worldwide disclosure facility

Non resident Non domicile taxation

HMRC enquiries and Tax Investigations

Super deduction tax planning -Budget 2021

Family owned business tax saving techniques

VAT on property

Stamp duty land taxes

Corporate structure planning including Groups
from £150 +VAT (Per Hour)
Growing Business

Self Assessment

MTD VAT Submissions

Annual Accountancy Health check

Our speediest support & service

Unlimited phone and email support

All your accountancy questions answered

Registration for company taxes & Registered Office address

Timely Company Filings

Detailed Tax Planning

Pro online accountancy software

Easy bank reconciliation

Receipt scanning app

Discounts on Mortgage services and Business Insurance

References
from £150 +VAT (Per Month)
Sectors We Serve
Accountancy Advice
Do you wish you could spend less time worrying about liabilities and more time growing your business? Our free consultation offer:
- Understanding your business
- Tailored Advice
- An accurate financial service
- Great value for money
Free /One hour
Tax Advice
Whatever your taxation needs we offer advice,guidance and support in meeting your legal obligations while reducing your resultant tax. bill.
- Analysing your tax problem
- Finding a solution
- Tailored Advice
- Fixed Fee Quote
£150 /Hour
Subscribe to our Newsletter
A forward-thinking firm that comprises both expert accountants and specialist chartered tax advisers. We are able support all businesses in their quest for success.
Reviews

IQBAL ZAFAR
I have been IBISS & CO client for past 7 years. Their team is professional and proactive who assist me in filing my overseas and UK tax disclosure.

Ahmed Hussain
I’ve used them for the past few years now and I am very satisfied with their services. The staff are very amicable as well. Definitely recommend them.

Stephen Hudson
The response of IBISS and Co to my tax problem was rapid and professional. The advisor understood the problem and recommended

Andrea Callegari
Excellent service! Provided a clear explanation to my matter in a timely manner. Very helpful and polite. Highly recommend.

John Mitchell
“IBISS & CO provided exceptional financial guidance. Their expertise and personalized approach helped streamline our investment strategy. Highly recommend for anyone seeking top-tier financial services.”

Sarah Thompson
Working with IBISS & CO was a game-changer for our business. Their insightful advice and thorough analysis led to significant financial growth. Outstanding service!

Michael Reynolds
IBISS & CO exceeded expectations with their professional and strategic approach. They understood our needs and delivered results beyond our expectations. A reliable partner in finance.”

Emily Carter
“IBISS & CO’s financial planning transformed our portfolio. Their team’s dedication and deep market knowledge ensured we made the best decisions. A trusted partner for financial success.”

Ashton Mills
IBISS & CO provided outstanding service, handling our project with precision and care. Their expertise made a significant difference, ensuring we achieved our goals efficiently.”

Lily Parker
Partnering with IBISS & CO was a game-changer. Their dedication to excellence and proactive approach led to exceptional outcomes. Highly recommend them for any business endeavor.”

James Turner
IBISS & CO exceeded expectations. Their professional team delivered top-notch results, staying committed to our needs throughout. A trusted partner in every sense.”

Sophia Grant
Working with IBISS & CO was a pleasure. Their focus on client satisfaction and detail-oriented service ensured our project’s success. They’re a reliable and highly skilled team.”

Sarah J
BISS & CO exceeded our expectations with their professionalism and expertise. Our project was delivered on time and flawlessly executed.

Mike L
Outstanding service! BISS & CO’s attention to detail and client-focused approach made all the difference

Jessica M
Working with BISS & CO was a breeze. Their team is knowledgeable, responsive, and truly cares about client satisfaction.

David P
BISS & CO delivered exceptional results on our project. Highly recommend their services for anyone seeking quality and reliability.
BLOG
Explore the IBISS blog and case studies for helpful tips on tax accounting and business advice. If you need expert support just get in touch with us. The IBISS & CO expert team accountants & tax advisers is always here to help you and your business succeed.
The relationship between Airbnb and tax in the UK has altered slightly. As of 1 January 2024, Airbnb is required to share …
Forensic accountant play an important role in pointing out financial fraud & solving disputes while make sure accurate reporting. If you suspect …
