United Kingdom • Fixed Price Service

Coporation Tax Returns Filing
In United Kingdom

Coporation Tax Returns Filing in United Kingdom is a critical obligation for every limited company, and getting it right requires professional expertise. The exact phrase Coporation Tax Returns Filing in United Kingdom refers to the process of submitting company tax returns to HMRC, which includes the CT600 form and supporting computations. Every company must file its company tax returns within twelve months of its accounting period end, and failure to do so can result in significant penalties. By using AccountingFirms, you can find and compare verified accountants who specialise in company corporation tax filing, ensuring that your submissions are accurate and timely. The professionals listed on AccountingFirms include qualified ACCA, ICAEW, and AAT members who understand the complexities of Corporation Tax, VAT, and Self Assessment. They can help you organise your financial records, analyse your liabilities, and fulfil your obligations with confidence. AccountingFirms was established in 2019 by ICAEW and ACCA accountants, and it has since become a trusted directory for businesses seeking expert tax support. When you browse local firms featured in the directory, you can compare providers based on their experience, client reviews, and areas of specialism. Whether you need assistance with company tax returns or broader tax planning, the firms listed on AccountingFirms are ready to assist. The directory makes it easy to connect with verified accountants who can manage your Coporation Tax Returns Filing in United Kingdom, giving you peace of mind and allowing you to focus on running your business. With a strong emphasis on regulatory compliance and professional standards, every accountant in the directory is vetted and recognised by their respective professional bodies. By choosing a professional from AccountingFirms, you ensure that your company corporation tax filing is handled correctly, reducing the risk of errors and penalties. The platform also offers guidance on how to prepare for your tax return, including what records to keep and what deadlines to meet. For any business, staying on top of Corporation Tax is essential, and the experts featured here can make the process straightforward and efficient. Start your search today and find a qualified accountant who can support your company’s tax needs.

Fixed price — no hidden fees5-day turnaroundACCA qualified100% online

Corporation Tax Returns

Corporation Tax Returns

£500+VAT
  • Year end accounts - to be filed to Companies House.
  • Year end accounts - to be filed to HM Revenue & Customs.
  • Company Tax Return - CT600.
  • Basic Tax Planning.
  • Telephone & Email Support
  • Fee Email Reminders.
  • Dedicated Accounts Manager.
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What's Included — Complete Transparency

✓ No hidden fees

Included in £500+VAT

  • Year end accounts - to be filed to Companies House.
  • Year end accounts - to be filed to HM Revenue & Customs.
  • Company Tax Return - CT600.
  • Basic Tax Planning.
  • Telephone & Email Support
  • Fee Email Reminders.
  • Dedicated Accounts Manager.

Available as add-ons

  • Company Dissolution (DS01) (£148.98+VAT)
  • Company Formation (Incorporation) (£200.00+VAT)
  • Confirmation Statement (CS01) (£92.00+VAT)
  • Director's Personal Self Assessment (SA100) (£199.00+VAT)
  • HMRC Enquiry & Letter Support (£98.98+VAT)
  • Limited Company Full Compliance Bundle (£99.00+VAT)
  • Micro Entity Accounts (£398.99+VAT)
  • Monthly Bookkeeping (£79.00+VAT)
  • P11D — Benefits in Kind (£49.00+VAT)
  • Payroll — Monthly (£28.99+VAT)
  • Registered Office Address (£120.00+VAT)
  • VAT Registration (£79.00+VAT)
  • VAT Return (per quarter) (£89.00+VAT)
  • Years End/Annual Accounts & Tax Return (£499.00+VAT)

Not sure if you need an add-on? Contact us first — we'll tell you honestly before you book.

How It Works — 3 Simple Steps

Fully online • No meetings needed
1

Book & Pay

Complete your booking online. Pay securely via Stripe. Receive instant confirmation with a document checklist.

2

Share Your Documents

Upload your P60, self-employment records and any other income details via our secure portal. No paperwork needed.

3

We File With HMRC

Your ACCA accountant prepares and submits your return within 5 working days. You receive your tax calculation.

Why Choose Accounting Firms?

✅

Fixed, Transparent Pricing

No hidden charges or unexpected bills. Our pricing is clear from the start, so you know exactly what's included before we begin.

⚡

Fast & Stress-Free Process

We make accounting simple. Upload your details, answer a few questions, and our team handles the paperwork and submissions for you.

👨‍💼

Qualified UK Accounting Experts

Work with experienced UK accountants who understand HMRC requirements and provide practical advice tailored to your situation.

🛡️

HMRC Compliance & Accuracy

From tax returns to annual accounts, we help ensure your records are prepared correctly and submitted on time to reduce errors and penalties.

📞

Dedicated Support When You Need It

Have questions? Our team is available to guide you through every step and explain things in plain English.

📈

More Than Filing — Business Growth Support

Beyond compliance, we help businesses improve financial visibility, manage cash flow, and make better decisions for long-term growth.

What United Kingdom Clients Say

★ 4.9 from 312 reviews
★★★★★

"Fixed price meant no nasty surprises. My return was done in 3 days and Sarah caught expenses I'd missed that saved me £340 in tax. Will be back every year."

James O., United Kingdom•IT ContractorVerified
★★★★★

"First time filing self assessment as a freelancer. I was dreading it. The whole process was explained clearly, everything was done online and I didn't have to do anything except provide my records."

Priya K., United Kingdom•Graphic DesignerVerified
★★★★★

"Used to pay £350 to my high street accountant. Same quality service here for £149+VAT and I didn't even have to leave the house. Absolute no-brainer."

Marcus T., United Kingdom•Personal TrainerVerified

HMRC Late Filing Penalties — What You Risk

£100

1 day late automatic penalty

+£900

£10/day for up to 90 days
(after 3 months)

+5%

of tax owed or £300 after 6 months

+5%

further surcharge after 12 months late

Avoid every single one of these penalties

Our ACCA accountant files your return in 5 days. Guaranteed on time.

Coporation Tax Returns Filing in United Kingdom — Complete Guide 2026

Frequently asked questions

What is a CT600 tax return and who needs to file it?

A CT600 tax return is the form used by limited companies to report their taxable profits to HMRC. Every company that is resident for tax purposes must file a CT600 for each accounting period, even if it has no tax to pay. The return includes details of income, deductions, and reliefs, and it must be submitted online.

When is the deadline for filing company tax returns?

The deadline for filing company tax returns is twelve months after the end of the accounting period. However, Corporation Tax itself is due nine months and one day after the accounting period ends. It is advisable to file well before the deadline to avoid penalties, and an accountant can help you manage these dates.

How can an ACCA or ICAEW professional help with Corporation Tax?

ACCA and ICAEW professionals are trained to handle complex tax matters. They can prepare accurate CT600 returns, identify allowable deductions, and ensure compliance with HMRC regulations. Their expertise reduces the risk of errors and penalties, and they can also provide strategic tax planning advice to minimise your company's tax liability.

What are the penalties for late filing of company tax returns?

Late filing of company tax returns incurs automatic penalties from HMRC. The initial penalty is £150 if the return is up to three months late, and this increases to £300 if it is more than three months late. Additional penalties apply for persistent lateness, and interest may be charged on unpaid tax. Professional help ensures timely filing.

What information is needed to prepare a company corporation tax filing?

To prepare a company corporation tax filing, you need your company's financial statements, including the profit and loss account and balance sheet. You also need details of any capital allowances, expenses, and reliefs. An accountant can help you gather and organise this information, ensuring that your CT600 return is complete and accurate.

Can an accountant help with both Corporation Tax and Self Assessment?

Yes, many accountants are qualified to handle both Corporation Tax and Self Assessment. They can manage your company's CT600 filing and also prepare personal tax returns for directors or shareholders. This integrated approach ensures consistency and can identify opportunities for tax efficiency across both your business and personal finances.

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