Understanding the Updated Corporation Tax Rates

Updated Corporation Tax Rates for UK Companies


In a move to bolster the economy and encourage business growth, the United Kingdom has implemented changes to its corporation tax rates. These changes, set to take effect from April 2023, bring both opportunities and considerations for businesses operating in the UK. In this blog post, we will explore the key updates to corporation tax rates, examine their implications for UK companies, and provide examples to illustrate their impact.

Revised Corporation Tax Rates and Thresholds: 

Under the new legislation, the corporation tax rates in the UK are set to undergo adjustments. Currently, the standard rate stands at 19%, which has been in place for several years. However, starting from April 2023, the rate is planned to increase incrementally, reaching 25% for large companies with profits over a specified threshold. The thresholds for the revised corporation tax rates are as follows:

  • Small Profits Rate (profits up to £50,000): 19%
  • Main Rate (profits between £50,001 and £250,000): Marginal relief between 19% and 25%
  • Main Rate (profits over £250,000): 25%

Marginal Rates for Profits in the £50,001 to £250,000 Range:

Profits Range Marginal Tax Rate
£50,001 – £250,000 Gradually rises
£250,001 and above 25%

Example: Let’s consider a UK-based company with profits of £150,000. Under the new corporation tax rates, this company falls within the Main Rate category for profits between £50,001 and £250,000. Instead of a flat rate of 19%, the company would face a marginal tax rate between 19% and 25%.

In this scenario, the company would pay 19% on the profits up to £50,000. The remaining profits (£100,000) would be subject to a marginal tax rate, gradually rising from 19% to 25%. The exact tax liability would depend on the specific marginal rate applicable to each profit bracket within the £50,001 to £250,000 range.

Considerations for Large Companies: 

The new corporation tax rates pose considerations for large companies, particularly those with profits exceeding the £250,000 threshold. With the rate set to increase to 25%, businesses in this category may need to reassess their financial strategies and consider the potential impact on profitability. It becomes essential for these companies to work closely with tax advisors and accountants to evaluate the implications and identify appropriate tax planning strategies.

Tax Planning and Structuring Opportunities:

The updated corporation tax rates also bring forth opportunities for tax planning and structuring. Companies can explore various avenues, such as optimizing capital allowances, researching tax credits and reliefs, and evaluating investment incentives, to manage their tax liabilities effectively. Collaborating with tax experts becomes crucial to navigate the changing landscape, identify applicable opportunities, and ensure compliance with tax regulations.


The revised corporation tax rates in the UK herald a new chapter for businesses, striking a balance between supporting SMEs and ensuring sustainable economic growth. Understanding the implications of these changes, including the thresholds and marginal rates, is crucial for companies to navigate the evolving tax landscape successfully. By leveraging professional guidance, exploring tax planning opportunities, and making informed investment decisions, businesses can adapt to the new rates and continue to thrive in the dynamic business environment of the UK.