Tools to help your business. Corporation tax Corporation tax rates are set for each Financial Year. A Financial Year runs from 1 April to the following 31 March.If the accounting period of a company straddles the 31 March, the profits are apportioned on a time basis to each Financial Year.The Northern Ireland Executive has committed to setting the rate of corporation tax at 12.5% when the Northern Ireland Executive demonstrates its finances are on a sustainable footing.Year to 31.3.25: Rate Profits band (£) Rate (%) Small profits rate 0 - 50,000 19 Marginal rate 50,001 - 250,000 26.5 Main rate Over 250,000 25 Marginal relief fraction 3/200 Can you claim R&D Tax relief? At DMA, we have a track record of helping clients with all R & D tax issues. We can advise you precisely on what does/does not qualify for tax relief under R&D activities and under which R&D scheme. Life’s too short to be searching for stuff… Fortunately, DMA’s App means that you don’t have to. Get ALL your financial and tax information in one place and at all times – plus a great financial news feed! Register With Us Get better and faster communication and a whole range of free tools. Track your mileage, upload bills directly – and get technology that’s as on-the-move as you are. Demystifying Digital Tax We’ll show you how to use Making Tax Digital to your commercial advantage by streamlining your business processes. Making Tax Digital can be an opportunity to save time and money!