AUSFA-0001 · grok-4.20-reasoning (default)**12**
The SG rate is legislated under the Superannuation Guarantee (Administration) Act 1992 (Cth) and stepped up by 0.5 percentage points on 1 July each year from 2021 until it reached 12% on 1 July 2025 (confirmed in the Treasury Laws Amendment (Improving Superannuation Outcomes for Australians) Act 2021 and subsequent Budget papers). Therefore, for any ordinary time earnings paid on or after that date in the 2025-26 financial year the minimum SG contribution is exactly 12%.
The controlling authority for the superannuation guarantee charge is the Australian Taxation Office.