Beyond Tax: Engaging with Internal and External Stakeholders – Sydney

Beyond Tax: Engaging with Internal and External Stakeholders – Sydney

In-person event

Date: Tuesday 21 October 2025

Time: 12:30pm – Lunch provided
1:00pm – 2:00pm – Panel will commence

Location: Jones Day, Aurora Place, Level 41, 88 Phillip Street, Sydney

RSVP: Please register your attendance by 15 October below. This is an in-person event.

About the Seminar

When tax developments impact a business, the ripples are often felt far beyond the tax function.
Whether it’s a dispute, a new revenue measure with significant tax and compliance implications
or an ATO risk hypothesis that creates unexpected exposure, effective stakeholder engagement is
critical and is often up to the tax function to lead. Internal engagement may be needed across
borders and business functions including reporting, reserves, audit, investor relations, access
to business lines information, data protection and more. Although the ATO may be the main
external stakeholder, others including customers, suppliers, other revenue authorities, and other
regulators may react to perceived vulnerabilities. Join leading Heads of Tax from different
industries as they share practical insights on navigating the risks and shaping the narrative.

Registration

IFA Member: Free
CTA Member: Free

Membership is free for individuals under 30 and half price for individuals under 40.
If you would like to become a member, please do so
here.

Lisa Escudero, Atlassian

Head of International Tax and Governance at Atlassian, overseeing the corporate tax environment
in multiple jurisdictions. Previously worked at other large publicly listed companies in Australia
and started her career at PwC. Expertise in International Tax, Transfer Pricing, Governance and risk
management, M&A, tax compliance and tax strategy, particularly in the tech sector.

Winnie Kong, Brookfield

Managing Director in Brookfield’s Infrastructure Group with responsibility for Asia Pacific.
Experience includes tax structuring, acquisitions, divestments, asset management, and cross-border
issues. Holds a Master of Taxation Law and a Bachelor of Commerce, and is a Chartered Accountant.

Mahesh Hettiaratchi, Jacobs

Senior Director of Tax (APAC) at Jacobs, responsible for tax aspects in the region including audits
and M&A transactions. Over 15 years at Jacobs, with prior senior roles at Ernst & Young in Perth,
Sydney and New York, actively involved in tax legislation consultation.

Lauren Moses, Jones Day

Of Counsel at Jones Day with almost 20 years’ experience in tax and disputes. Previous roles include
ATO, AGS and judges’ associate. Works across international tax, anti-avoidance and trusts.

Michelle de Niese, Corporate Tax Association (Chair)

Executive Director of the Corporate Tax Association since 2015. Extensive experience as an external
stakeholder in the development of Australia’s tax policy and law. Co-chair of the Large Business
Liaison Group and executive committee member of the IFA.

Please note this is an in-person event and limited to IFA members and CTA members only.