As composer, Josef Poncar - just as his prominent contemporaries Jaromír Vejvoda and Karel Vacek - belongs to "the Greats" of Bohemian light music. He always stayed true to his rural influences and topics. Despite his passion for music, he worked full time at the railway.
In 1975, Poncar retired from all conducting positions due to illness. He died on November 6, 1986. Numerous prominent musicians participated in the obsequies and they formed a large orchestra from Beroun and Hořovic. In 1997, at his house in his hometown Chodouň, they installed a memorial plaque for Josef Poncar. In Zdice, where he lived with his family from 1940, they named a street after him, Poncarova.