Australia Post is set to increase stamp prices after approval for a new pricing arrangement, as the business cites a sharp decline in mail volumes. Multiple reports say the change comes in response to what Australia Post describes as the steepest collapse in mail volumes in generations. The company links the decline to sustained reductions in letter usage, stating that letter volumes are now at levels last seen in the 1930s. The reporting indicates the stamp price increase will take effect soon, although details on timing and specific amounts are not provided in the supplied excerpts. Overall, the sources present the increase as part of Australia Post’s effort to respond to ongoing financial and operational pressure caused by structurally lower demand for traditional mail services. The articles describe the move as approved, signalling regulatory or official acceptance of the updated postal pricing. No alternative explanations for the volume decline are raised in the provided text, and both outlets frame the issue primarily through Australia Post’s figures and rationale.