As of 2020, Tapani ranks sixth in all-time points scored with the Finnish women's national team, tallying 75 goals and 72 assists for 147 points in 179 top division matches. She has represented Finland at every IIHF Women's World Championship since 2011, except the 2016 tournament. At the 2017 IIHF Women's World Championship, she was Finland’s leading scorer and ranked fifth for scoring in the tournament overall with 3 goals and 6 assists for 9 points in 5 games.