From 2012 to 2014, Darling was the chairman of the Better Together Campaign, a cross-party group that successfully campaigned for Scotland to remain part of the United Kingdom in the 2014 independence referendum. On 3 November 2014, Darling announced that he was standing down at the 2015 general election. He was nominated for a life peerage in the 2015 Dissolution Honours and was created Baron Darling of Roulanish, of Great Bernera in the County of Ross and Cromarty, on 1 December 2015. He retired from the House of Lords in July 2020.