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ACC/MSD Benefit Eligibility Programme

• Annual Report
• Technical information
• System description
• Historical activity

Annual Report

Purpose: To identify individuals whose MSD entitlement may have changed because they are receiving ACC payments.

Year commenced: 2005

Features: Data transferred each week by online transfer.

ACC disclosure to MSD: ACC selects individuals who have:

• current claims that have continued for two months since the first payment;
• claims where there has been no payment made to the claimant for six weeks; or
• current claims that have continued for one year since the first payment.

For these people, ACC provides MSD with the full name (including aliases), date of birth, address, IRD number, ACC claimant identifier, payment start/end dates and payment amounts.

2008/09 activity:

New match runs started in the reporting period

Match runs 52
Records received for matching                      2,469,022        
Possible matches identified 7,124
All match runs active in the reporting period[1]
Matches that required no further action          4,702
Notices of adverse action 2,536
Challenges 158
Successful challenges 81
Overpayments established 1,370
Value of overpayments established $1,735,763     

A jump in challenges and successful challenges occurred because of a one-off incident where incorrect data was received from ACC. The information received related to historic injuries and was not related to periods where the individuals were in receipt of concurrent ACC and MSD payments. Once MSD identified the issue, it was able to identify the clients affected and cease any further action.

Compliance: Compliant.

Technical information

Information matching provision Injury Prevention, Rehabilitation, and Compensation
Act 2001, s.281(2)
Year authorised 1991
Programme type Confirming eligibility
Detecting illegal behaviour
Detecting processing errors
Locating people
On-line transfers Yes
System description

MSD compares the ACC information with its client data to identify individuals receiving payments from both agencies. The matching algorithm produces positive matches that are weighted to indicate the probability that an MSD client is the person in the ACC data. All positive matches are loaded into the NDMC computer system, AIMOS. MSD then verifies if individuals who were in receipt of both payments were eligible to receive the MSD entitlement at all and, if so, at the rate it was paid. Where ACC payments have ceased, MSD verifies the rate of the ongoing benefit entitlement.

Historical activity

                                                 2005/06 2006/07  2007/08     
New match runs started in the reporting period
Match runs                                  26 52 52
Records compared 986,444  2,094,471   2,305,823  
Number of client cases 7,636 12,611 6,639
All match runs active in the reporting period
Legitimate cases 6,352 11,997 4,230
Notices of adverse action 245 1,718 2,549
Overpayments established (number) 189 637 1,726
Overpayments established $420,914 $1,519,894 $2,148,772
Challenges 16 209 92
Successful challenges 2 36 32

[1] This includes activity from match runs initiated in the previous year.