How to Apply It’s never been easier to apply for a business overdraft from Bank of Ireland. Depending on your desired overdraft amount, select one of the ‘Apply Online’ buttons below to get started. Alternatively, you can discuss your application with a member of our team. Apply Online Now Amounts up to €120,0001 Apply Online Now Apply Online Now Amounts greater than €120,000 up to €500,0001 Apply Online Now Call our team Existing and new customers can call us on 0818 210 614 Mon – Fri, 9am – 5pm. Call 0818 210 614 Visit your local branch New customers can call into their local branch. Find your local branch