2018 Fed Cup World Group play-offs

Main article: 2018 Fed Cup

The World Group I Play-offs were four ties which involved the losing nations of the World Group and the winning nations of the World Group II. Nations that won their play-off ties entered the 2019 World Group, while losing nations joined the 2019 World Group II.

Participating Teams
Australia	Belarus	Belgium	Italy
Netherlands	Romania	Slovakia	Switzerland

Belarus vs. Slovakia

Belarus	Chizhovka-Arena, Minsk, Belarus 21–22 April		Slovakia
1 2 3 1           2           3           4           5

Romania vs. Switzerland

Romania	Polyvalent Hall, Cluj-Napoca, Romania 21–22 April Clay (indoor)		Switzerland
1 2 3 1           2           3           4           5

Australia vs. Netherlands

Australia	WIN Entertainment Centre, Wollongong, Australia 21–22 April Hard (indoor)		Netherlands
1 2 3 1           2           3           4           5

Italy vs. Belgium

Italy	Valletta Cambiaso ASD, Genoa, Italy 21–22 April Clay		Belgium
1 2 3 1           2           3           4           5