For the 2015 Dutch Senate election, 12 electoral lists were successfully submitted, totalling 261 candidates.
The 75 seats were awarded to party lists, with candidates over the preference threshold awarded a seat first if available and the other seats awarded based on position on the list. The preference threshold for this election was 2,255 weighted votes (same as the electoral threshold). Two candidate would have not been elected based on position on the list, but received enough preference votes: Alexander Kops and Alexander van Hattem (both Party for Freedom). Replacements are also asked based on position on the list.