Corporation Tax marginal rate | How do you calculate corporation tax marginal relief
What’s the corporation tax main rate?
From 1 April 2023, the Corporation Tax main rate for companies with profits in excess of £250,000 increased to 25%. A Small Profits Rate (SPR) of 19% was also introduced from the same date for companies with profits of up to £50,000, ensuring these companies continue to pay Corporation Tax at the same rate as was previously the case. Marginal Relief provides a gradual increase in Corporation Tax rate between the small profits rate and the main rate – this allows you to reduce your rate from the 25% main rate.
How does marginal rate corporation tax work?
Where a companies profits between £50,000 and £250,000 a marginal rate of Corporation Tax applies that bridges the gap between the lower and upper limits. The lower and upper limits are proportionately reduced for short accounting periods of less than 12 months and where there are associated companies.
The effect of marginal relief is that the effective rate of Corporation Tax gradually increases from 19% where profits exceed £50,000 to 25% where profits are more than £250,000.
How to calculate your marginal rate
The amount of tax will be found by multiplying taxable profits by the main rate of 25% and deducting marginal relief. For the fiscal year 2023, the marginal relief fraction will be 3/200. HMRC also has an online calculator that can be used to calculate marginal relief on Corporation Tax profits. If you are interested in finding out how much relief you can claim it’s important to note that you should only calculate your marginal relief on your corporation tax profits from the 1st of April 2023.
Contact us
If you’re unsure how to calculate your corporation tax marginal relief, please contact a member of our specialist tax team. Moore (South)’s team can help you better understand your corporation tax liabilities and what marginal relief can be claimed.