He was born in
Sandefjord to botanist and teacher
Olaf Alfred Hoffstad (1865–1943); his younger brother was
Arne Hoffstad (1900–1980), who became an editor and
Conservative politician. Having finished his secondary education in 1913, Einar Hoffstad enrolled at the
Norwegian Institute of Technology, where he studied until 1916. He subsequently worked as stockbroker in Sandefjord for a year, before being hired as editor of the stockbrokers' periodical
Norsk Aktiemeglertidsskrift and the economy section of
Verdens Gang from 1918 to 1919. In that same year he married the slightly younger Edith Eckblad, the daughter of a landlord. From 1919 to 1920 Hoffstad worked as a secretary in
Norsk Næringsliv. He also began working at the economics periodical
Farmand, advancing to co-editor in 1920. He was
editor in chief of the periodical from 1922 to 1926 and from 1933 to 1935. Whilst having a break from his career at
Farmand, Hoffstad edited the enterprise journal
Forretningsliv between 1926 and 1933, which was acquired by
Farmand in 1933. ==Political views==