Corporation Tax Services (CT600)

Managing corporation tax is a crucial yet complex aspect of running a UK-based business. At Affotax, we provide expert Corporation Tax Return (CT600) filing services designed to keep your company compliant with HMRC regulations while maximising tax-saving opportunities.

What is Corporation Tax (CT600)?

Corporation Tax is a mandatory tax levied on the profits of UK-registered limited companies. Every active company must file a Corporation Tax Return (CT600) with HMRC within 12 months of the financial year-end. However, tax payments are due within 9 months and 1 day after the accounting period ends.

Failure to meet these deadlines can lead to significant penalties and interest charges. Affotax ensures your tax returns are prepared accurately and submitted on time, preventing unnecessary financial burdens.

Penalties for Late CT600 Filing

Missing the corporation tax filing deadline can result in escalating penalties:

• 1 day late: £100 fine
• 3 months late: Additional £100 fine
• 6 months late: HMRC estimates your bill and imposes a 10% penalty on the estimate
• 12 months late: An extra 10% penalty on the estimated bill

Avoid penalties by partnering with Affotax for timely submissions and accurate tax filings.

Maximise Savings with Professional Tax Planning

Corporation tax planning isn't just about compliance—it’s about maximising tax efficiency. Affotax offers bespoke tax-saving strategies, including:

1. Utilisation of Allowable Deductions – We help you claim valid business expenses to lower taxable profits.
2. Handling of Director’s Loan Tax (S455) – Expert management of complex tax areas to ensure compliance.
3. Capital Allowances & R&D Tax Credits – Maximising reliefs for business investments and research & development.

Our proactive approach helps businesses reduce unnecessary tax burdens and improve financial efficiency.

Corporation Tax Deadlines & Registration

Meeting deadlines is crucial to avoid penalties:

• Corporation tax payment: Due 9 months and 1 day after your accounting period ends.
• CT600 filing deadline: Must be submitted within 12 months of the financial year-end.
• New business registration: Companies must register for corporation tax within 3 months of starting business activities.

Affotax simplifies the registration process, ensuring that all essential documentation—Unique Taxpayer Reference (UTR), Company Registration Number (CRN), and Government Gateway credentials—are in place.

Simplified CT600 Filing with Affotax

We take the hassle out of corporation tax filing by providing a seamless and efficient process:

• ✅ Government Gateway Account Setup – We assist in setting up your HMRC account for online tax submission.
• ✅ Accurate Profit & Tax Calculations – Our experts ensure all financial data is correctly recorded and calculated.
• ✅ Submission & Compliance Management – We file your CT600 return with HMRC, ensuring full compliance.
• ✅ Tax Relief & Deduction Claims – We identify all available tax reliefs to help reduce your tax liability.

Our cloud-based approach ensures real-time tracking and transparency in your tax affairs.

Get Started with Affotax

Let Affotax handle your CT600 filing and corporation tax matters with precision and expertise. Contact us today to discuss how we can help your business stay compliant and maximise tax savings.