The denial was issued after Billy Bragg criticised the 24-year-old singer for removing her entire back catalogue from Spotify.
“Taylor Swift has had absolutely no discussion or agreement of any kind with Google’s new music streaming service,” her representative said.
But, writing on Facebook, Bragg accused the star of not being honest with her fans.
“(She should) say ‘sorry, but (Google) gave me a huge amount of money… So I’ve sold my soul,” he said.
“These worthy sentiments have been somewhat undermined by Swift making her new album and back catalogue available on Google’s new Music Key streaming service… Which also offers listeners a free service alongside a premium subscription tier,” he added.