Ministry of Social Development data matching with Births, Deaths and Marriages will begin in September.
The data matching will initially target cases where people have either died or married and either they or their families have failed to notify Work and Income of the change.
Other data match projects in the pipeline include a student data match programme, scheduled to begin in the middle of 2005, that will allow MSD to extend its data match programmes with IRD, Customs, ACC and Housing New Zealand to cover students.
The government announced funding in both the 2003 and 2004 budgets for new data match programmes. Projects will include ACC detecting people who receive a benefit and fail to declare ACC income, and Housing New Zealand, which will target cases where people have a house, based on family circumstances different to those on which their benefit is based.
MSD says that during the past financial year, data matching meant $23 million of benefit overpayments were detected, involing more than 13,000 individual cases.