The World Group play-offs were four ties which involved the losing nations of the World Group first round and the winning nations of the World Group II. Nations that won their play-off ties entered the 2016 World Group, while losing nations joined the 2016 World Group II.

Participating Teams
Australia	Canada	Italy	Netherlands
Poland	Romania	Switzerland	United States

Italy vs. USA

Italy 3	Circolo Tennis Brindisi, Brindisi, Italy[1] 18–19 April 2015 Clay		United States 2
1 2 3 1 Camila Giorgi Serena Williams 65 77 2 6     2 Sara Errani Lauren Davis 6 1 6 2     3 Sara Errani Serena Williams 6 4 63 77 3 6   4 Flavia Pennetta Christina McHale 6 1 6 1     5 Sara Errani / Flavia Pennetta Alison Riske / Serena Williams 6 0 6 3

Netherlands vs. Australia

Netherlands 4	Maaspoort Sports & Events, 's-Hertogenbosch, Netherlands[2] 18–19 April 2015 Clay (indoor)		Australia 1
1 2 3 1 Kiki Bertens Jarmila Gajdošová 6 1 6 3     2 Arantxa Rus Casey Dellacqua 5 7 3 6     3 Kiki Bertens Casey Dellacqua 6 2 6 3     4 Arantxa Rus Jarmila Gajdošová 0 6 7 5 7 5   5 Richèl Hogenkamp / Michaëlla Krajicek Casey Dellacqua / Olivia Rogowska 6 2 77 63

Poland vs. Switzerland

Poland 2	CRS Hall Zielona Góra, Zielona Góra, Poland[3] 18–19 April 2015 Hard (indoor)		Switzerland 3
1 2 3 1 Agnieszka Radwańska Martina Hingis 6 4 6 0     2 Urszula Radwańska Timea Bacsinszky 2 6 1 6     3 Agnieszka Radwańska Timea Bacsinszky 1 6 1 6     4 Urszula Radwańska Martina Hingis 4 6 7 5 6 1   5 Agnieszka Radwańska / Alicja Rosolska Timea Bacsinszky / Viktorija Golubic 6 2 4 6 7 9

Canada vs. Romania

Canada 2	Aréna Maurice Richard, Montreal, Canada[4] 18–19 April 2015 Hard (indoor)		Romania 3
1 2 3 1 Françoise Abanda Irina-Camelia Begu 4 6 7 5 6 4   2 Eugenie Bouchard Alexandra Dulgheru 4 6 4 6     3 Eugenie Bouchard Andreea Mitu 6 4 4 6 1 6   4 Françoise Abanda Alexandra Dulgheru 6 3 5 7 2 6   5 Gabriela Dabrowski / Sharon Fichman Andreea Mitu / Raluca Olaru 6 1 4 6 [10] [5]