What this Act covers

The Treasury Laws Amendment (Strengthening Accountability for Tax Adviser Misconduct and Other Measures) Act 2026 (No. 86, 2026) received royal assent and came into force on 15 September 2026. The Act makes changes across several areas of tax and competition law.

Tax Practitioners Board - new suspension powers and penalties

The Act gives the Tax Practitioners Board new powers to suspend tax agent registrations. It also introduces new civil penalties and criminal offences for tax adviser misconduct, and increases existing civil penalty amounts under the Tax Agent Services Act 2009.

The source summary notes that bookkeepers and BAS agents registered with the Tax Practitioners Board should pay particular attention to the new suspension powers and increased penalties.

Foreign resident capital gains tax

The Act tightens the rules around foreign resident capital gains tax. Schedules 2 and 3 of the Act address these strengthened foreign resident CGT rules, including transitional arrangements for renewable energy assets.

Merger notification framework

The Act adjusts the merger notification framework under the Competition and Consumer Act 2010. Schedule 4 of the Act contains the relevant changes to merger notification rules.

Key actions

This is a plain-English summary for information only, not legal or compliance advice. Always check the official source or consult a qualified professional.