Before returning to play for Somerset, Mitchell-Innes once again featured for the Gentlemen at Lord's, though in a low-scoring match, he was dismissed for less than 20 runs in each innings. In six matches for Somerset in July and August, Mitchell-Innes scored 499 runs, and his average of 55.44 was the county's best that season. He scored 182, his best score for Somerset, in a County Championship match against Worcestershire, and followed it up with another century in the next match, against Lancashire. In all, 1936 was statistically Mitchell-Innes' best season; he scored 1,438 runs at an average of 44.93.