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Memorandum of understanding between Inland Revenue (IR) and the Ministry of Social Development (MSD) for disclosure of information related to contacting clients post go live to changes to child support liability.

Agency using the data

MSD

Purpose of agreement

To enable MSD to identify and contact liable parents about child support pass on changes to ensure that those liable parents receive the correct financial assistance they are eligible for.

Data exchanged

IR provides to MSD data about child support liable parents. This data is matched with MSD records to identify who should be contacted regarding child support pass on changes. This is a one-off supply of:

  • IRD number
  • Social Welfare number
  • full name
  • date of birth
  • contact details
  • past names
  • child support liability transaction details.

Legal authority

Approved Information Sharing Agreement under Part 7 of the Privacy Act 2020 and section 18E (2) of the Tax Administration Act 1994.

Last updated: 29 Aug 2025
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