The 2026–27 UEFA Nations League B features 16 teams across four groups, with the four group winners earning direct promotion to League A for the 2028–29 cycle and runners-up advancing to home-and-away promotion/relegation play-offs against League A third-placed sides in March 2027. Recent team movements include Scotland, Switzerland, Hungary, Poland, Israel, and Bosnia and Herzegovina dropping from League A, joined by promoted sides such as North Macedonia, Northern Ireland, Romania, Sweden, and Kosovo from League C. Fixtures begin in late September 2026, with early emphasis on squad depth, recent international results, and head-to-head patterns among contenders like Scotland, Switzerland, Hungary, Ukraine, Austria, and Poland. Home advantage and fixture congestion around the November window will shape outcomes in what remains a tightly contested promotion race.