Frank Greeff’s $180m Realbase sale excludes most employees despite his CGT advocacy
Consensus Summary
Frank Greeff, a prominent tech entrepreneur and vocal critic of Labor’s proposed capital gains tax changes, sold his start-up Realbase to Domain for $180 million in 2025, with an additional $50 million in potential earnouts. Despite his advocacy for employee equity schemes as a pathway to wealth for young Australians, only about 10 stakeholders—including Greeff and his brothers—held equity in Realbase at the time of the sale, leaving the vast majority of its 350-plus employees without a financial stake. Greeff’s campaign against the tax changes, which features AI-generated images of Prime Minister Albanese as a ‘co-founder’ with ‘47% equity,’ has been criticized as misleading by tax specialists, who argue the figure represents only the top marginal tax rate. Greeff defended the sale as a competitive market outcome and emphasized that equity schemes at his current venture, Kinso, are widely extended to employees. However, industry observers like Eucalyptus co-founder Tim Doyle argue that the debate over tax treatment distracts from the reality that most employees in successful start-ups often receive little or no payout despite their contributions. The contrast between Greeff’s public stance on employee equity and Realbase’s limited equity distribution has drawn scrutiny in start-up circles.
✓ Verified by 2+ sources
Key details reported by multiple sources:
- Frank Greeff led Realbase, a start-up sold to Domain for $180 million upfront (plus up to $50 million in earnouts) in 2025
- Realbase had over 350 employees at the time of the sale, but only about 10 stakeholders (founders and early employees) held equity
- Greeff’s brothers Jacques and Ken co-founded Realbase in 2012 and also shared in the sale proceeds, placing them on the Financial Review Young Rich List
- Realbase merged with rival Campaigntrack in 2020, increasing headcount from 40 to 400 overnight
- Greeff stepped down as Realbase CEO in July 2023, 15 months after the Domain sale, and now runs Kinso (an AI tool for consolidating notifications)
- Domain’s sale to US property data giant CoStar Group was completed for $1.92 billion in August 2025
- Greeff and Julian Fayad (LoanOptions.ai founder) led a viral campaign against Labor’s capital gains tax changes, using AI-generated images of PM Albanese as a ‘co-founder’ with ‘47% equity’
- Tax specialists called the ‘47% equity’ figure in Greeff’s campaign ‘misleading,’ noting it represents the top marginal tax rate, not actual equity
- Greeff claimed in 2020 that ‘every Australian founder just got a new founder with 47% equity’ in a post opposing the CGT changes
- Greeff described the Realbase sale process as a ‘closely held secret’ kept from most employees, who only learned of it at completion
- At Kinso, Greeff’s current venture, 10 out of 11 employees hold equity or options, a deliberate decision he described as ‘proud’
Points of Difference
Details reported by only one source:
- Greeff’s current venture Kinso aims to consolidate notifications from Slack, Gmail, WhatsApp, and LinkedIn into a single inbox.
- Domain reported weaker revenue in 2024 for the Realbase social media product, citing weakness in that segment.
- Greeff was contacted with detailed questions about the Realbase equity arrangements, the $40 million negotiated uplift to the headline price, and tax specialists’ ‘misleading’ characterization of the 47% figure, but did not directly address those points in his response.
Contradictions
Conflicting information between sources:
- Neither source provides conflicting information; all factual claims are identical between SMH and THE AGE.
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