In 2002, she joined Oranje Nassau, winning the KNVB Women's Cup in her third and final season at the club.

[7] On 6 August 2004 Smit debuted for the senior Netherlands women's national football team, playing the first half of a 2–0 friendly defeat to Japan in Zeist.

[8][9] Smit also featured in the Dutch run to the semi-final of UEFA Women's Euro 2009, playing all of the Netherlands five matches in the tournament and scoring a goal.

[10] On 25 November 2012, she earned her 100th cap for the national team in a friendly match against Wales at Velsen, scoring the first goal of the 2–0 Dutch win.

[1][8][11][12] In June 2013 national team coach Roger Reijners selected Smit in his Netherlands squad for UEFA Women's Euro 2013 in Sweden.