Van Schalkwyk was placed fourth on the African National Congress's regional Northern Cape list for the general election on 8 May 2014.[1] After the election, she was nominated to the National Assembly of South Africa.[2] Van Schalkwyk was sworn in as a Member of Parliament on 21 May 2014. In June 2014, she became a member of the Portfolio Committee on Labour.[1]
Van Schalkwyk became a member of the Portfolio Committee on Communications on 28 May 2015.[1] She served on the committee until 20 October 2016, when she became a member of the Portfolio Committee on Trade and Industry. She was appointed as the whip for the ANC Study Group on Public Service and Administration in 2018.[3]
Van Schalkwyk stood unsuccessfully for re-election at the May 2019 general election due to the fact that her name was low on the ANC's national list.[1] However, Collen Maine resigned from parliament on 5 July 2019 and the ANC selected Van Schalkwyk to fill his seat.[4] She was sworn in as an MP on the same day. On 19 July, Van Schalkwyk became a member of the Portfolio Committee on Public Works and Infrastructure. She became a member of the Standing Committee on Auditor General on 20 August 2019.[1]
She did not stand in the 2024 general election and left parliament.[1]