
Merger Clearance Reforms Hub

Merger control in Australia is set for a major overhaul, moving to a single mandatory and suspensory administrative regime. The new mandatory regime will apply to all deals closing or completing on or after 1 January 2026 (even if signed earlier). The ACCC will be transitioning to the new regime from July 2025, so it's important to start factoring it into transaction timelines now.
Keep across these changes and what they mean for your business and deal pipeline on our one-stop merger reforms hub. We'll be continually updating with new insights and analysis as we transition to the new regime, so check back in to keep up with the latest developments.
The legislation and guidelines
Get an overview of the legislation and guidelines.
Merger clearance: exposure draft of thresholds and regulations, plus ACCC guidance on notification forms
ACCC releases merger process guidance for new system
ACCC releases eagerly anticipated merger guidelines for new merger regime
Other articles about the legislation and guidelines
Cost of living pressures, digital transformation and merger reforms: a busy year ahead for ACCC
Merger control Bill improves some elements of exposure draft, but concerns for business remain
Consultation begins on new mandatory ACCC merger notification thresholds
ACCC continues to push for merger reform following ex post review of completed mergers
Radical changes proposed to re-engineer Australian merger clearance process
Your deals
Some types of deals will have their own extra considerations.
How property and real estate transactions will be impacted by the ACCC's new mandatory merger regime
Getting your deal over the line
How will merger clearance change after the reforms?
Additional scrutiny of restraints in sale agreements under the new mandatory merger regime
ACCC merger clearance reforms: How does the transition period affect your deal?
The ACCC's views
How the ACCC sees the process working is crucial.
Merger clearance: exposure draft of thresholds and regulations, plus ACCC guidance on notification forms
ACCC releases merger process guidance for new system
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