Re-referencing the SLCI data
The previously published SLCI data has been re-referenced. The September 2025 quarter serves as the link period where the index equals 100.00, and the indexes are now published to two decimal places. While the level of the indexes have changed due to re-referencing, the percentage movements of the index have not been revised.
More information on re-referencing is available in Re-referencing the quarterly Consumer Price Index.
Postponing the annual SLCI weight update
Since 2018, the ABS has updated the SLCI weights annually, alongside the CPI weights. The updated weights are usually implemented in the SLCIs for the March quarter. With the introduction of the complete Monthly CPI in late 2025, the ABS has decided to postpone the next SLCI weight update to the March quarter 2027. The ABS will monitor household spending patterns throughout 2026 and consider a mid-year weight update if needed. The ABS will advise users in advance if a mid-year weight update is going to occur. Information on the 2025 weight update is available in Annual weight update of the CPI.