Post-political career
In retirement from politics, Tobin has served on the board of several Canadian corporations. He became CEO of Magna International Developments (MID), controller of Magna's vast real estate and horse track holdings, the latter through Magna Entertainment Corporation. After only a few months in the position, he left after disagreements with Magna chairman and controlling shareholder Frank Stronach. The dispute was supposedly over the propriety of a share buyback program, while others suggested that it was because Stronach would not give Tobin autonomy to operate. Tobin has since joined the libertarian think-tank the Fraser Institute. In the past, Tobin had referred to the Fraser Institute and its fellows as "Loony-Tunes". It is there that Tobin began his association with the ideas and political plans of Preston Manning and Mike Harris. Tobin is also a Senior Business Advisor with Fraser Milner Casgrain LLP in Toronto and is a member of the firm's Public Policy Group.Through his involvement in policy decisions first entered as ideals at the Fraser Institute, Tobin has influenced the sale of energy interests in Alberta including the sale of two billion dollars' worth of Alberta oil and gas interests to Abu Dhabi a Middle Eastern company through their Houston affiliate as shown on the Fraser Milner Casgrain website.
In 2003, Tobin authored his biography titled All In Good Time.
With the defeat of the Liberals in the 2006 Canadian federal election to Stephen Harper's Conservatives, Prime Minister Martin resigned from the leadership of the party. There were frequent rumors that Tobin, and other former cabinet colleagues Allan Rock and John Manley would run to succeed Martin. On January 31, 2006, Tobin officially announced that he would not be running for the federal Liberal leadership.
On December 25, 2010, Tobin's son Jack was charged with impaired driving causing death over an incident in which his best friend, Alex Zolpis, was killed. His son later pleaded guilty and was granted full parole just over a year into a three-year sentence.
He was appointed an Officer of the Order of Canada on 19 November 2012. His citation reads:
Brian Tobin is highly regarded for his strong and principled leadership. As a federal cabinet minister, he was instrumental in leading the implementation of the Oceans Act, which provides a unique framework for modern ocean management. He also took a strong stance against offshore over-fishing by foreign fleets. His term as premier of Newfoundland and Labrador was marked by important economic reforms to traditional industries, the modernization of the educational system, and the development of the offshore oil and gas industry. In the corporate sector, he is known for his commitment to sound governance and corporate social responsibility.
In April 2013, BMO Capital Markets, the investment and corporate banking arm of BMO Financial Group, announced that it hired Tobin as vice-chair.