Australia’s government securities by instrument in three 2026 snapshots

Treasury Bonds account for most outstanding securities

Fixed-rate Treasury Bonds made up approximately 90.4% of the A$995.9 billion total on 28 October. The outstanding balance increased from A$877.0 billion in January to A$900.1 billion in October, a difference of A$23.1 billion at published precision. Source 1 Source 3 Source 4

Treasury Indexed Bonds and Notes serve different roles

Treasury Indexed Bonds provide inflation-linked payments, while Treasury Notes are short-term funding instruments. Notes outstanding declined from A$46 billion in January to A$45 billion in May before rising to A$54 billion in October. The AOFM uses regular Treasury Note issuance to manage cash. Source 1 Source 2 Source 3 Source 4

A stock snapshot and gross issuance describe separate quantities

The October figure measures outstanding securities on one date. The agency’s forecast of around A$125 billion in Treasury Bond issuance is the amount it expects to issue over the 2026 to 2027 financial year, including green bonds. Redemptions and other changes affect how the amount outstanding evolves. Source 2 Source 3

A syndication can be large beside the change in a stock series

The AOFM reported a syndicated sale of A$13 billion of its 5.00% Treasury Bond maturing in May 2038 in August 2026. Treasury Bonds outstanding rose A$18 billion between the May and October dates. Other transactions over the same period can also affect the outstanding total, so the difference alone does not identify the balance of issuance and maturities. Source 2 Source 3

Sources

• AOFM January 2026 investor chart pack, page 5
• AOFM May 2026 investor chart pack, page 5
• AOFM committee statement and October 2026 outstanding balances
• AOFM guide to Australian Government Securities