Taupin became an officer of the Légion d'honneur on 14 June 1804. He was named colonel of the 103rd Line Infantry Regiment on 1 February 1805. In this capacity, he led his regiment in all the major campaigns from 1805 to 1807 and fought at the Battle of Dürenstein in 1805. The 103rd Line was in Honoré Theodore Maxime Gazan's division of the V Corps at Dürenstein. When the division was attacked by an overwhelmingly superior force of Russians and Austrians on 11 November, it was able to cut its way out of the trap, though it suffered losses of 2,300 men. He was wounded during the battle. Taupin became a commander of the Légion d'honneur on 25 December 1805.