Who co-wrote and co-produced Taylor Swift’s “august” with Swift?

Jack Antonoff co-wrote and co-produced Taylor Swift’s “august” with Swift.

Antonoff and Swift built the song during the Folklore sessions, with Antonoff contributing to both its songwriting and production. The track uses layered vocal harmonies, acoustic textures, synthesizers, and a gradually expanding arrangement that matches its wistful late-summer mood.

Antonoff had already collaborated extensively with Swift before Folklore. Their earlier work included songs on 1989, Reputation, and Lover. Their partnership continued across later Swift albums, making Antonoff one of the most prominent recurring collaborators in her catalog.

Aaron Dessner is another important Folklore collaborator, but he did not co-write “august.” Dessner wrote or co-wrote several other Folklore songs and produced much of the album. This distinction is a frequent source of confusion because both Antonoff and Dessner were central to the record’s sound.