The shift is calculated to boost attendance and attract both UK and international buyers. BAF is also inviting applications from foreign galleries for the next edition.
Fair director Robert Sandelson said: “Early indications are that the fair will be again heavily oversubscribed, which guarantees the highest possible quality will be on show.”
A total of 50 galleries are expected to exhibit.
In the past, the event has taken place in late September, but after a change of ownership earlier this year led to a significant change when it moved from the Mall Galleries to the Saatchi. The last edition of BAF saw its highest-ever recorded sale, of a £2.5m Barbara Hepworth sculpture.