In April 1968, at Harrison's request, Taylor returned to England to work for the Beatles again, as the press officer for their newly created Apple Corps. Taylor oversaw the public launch of the company's record label, Apple Records, in August 1968, marked by the release of the Beatles' single "Hey Jude". As part of the campaign, "Hey Jude" and three other Apple singles were compiled in a gift box and despatched to Queen Elizabeth II, the Queen Mother and the British prime minister. During this period, Taylor frequently clashed with Paul McCartney, about whom he later wrote: "I don't think I ever hated anyone as much as I hated Paul in the summer of 1968." That same year, Taylor provided uncredited contributions to the lyrics of two songs issued on the band's double album, The Beatles: "Happiness Is a Warm Gun" and "Savoy Truffle".
Between 1968 and 1970, Taylor had a major role in the company's activities, leading the publicity campaigns for the band's projects and for those of the other artists signed to Apple Records. Among these, he helped stage Lennon and Yoko Ono's 1969 campaign for world peace. He is named in the lyrics of Lennon's song "Give Peace a Chance", along with Tommy Smothers, Timothy Leary and Norman Mailer, who like Taylor were all present at the recording of the song. In March 1970, Taylor commissioned the young photographer Les Smithers to photograph Badfinger, a rock band signed to Apple Records. That portrait has now been acquired by the National Portrait Gallery.