Anna Casellas
Clayton Utz
Partner
Perth
Anna Casellas handles the full range of employment issues from litigious matters pertaining to industrial relations and dismissals as well as contractual and compliance. She wins praise for the depth of her knowledge and the level of service she provides, a client noting: 'She's discreet and responsive.'
– Chambers Asia Pacific - Employment
Overview
Anna has extensive experience in advising on employment, industrial relations and safety issues. Anna advises and represents clients in both contentious and non-contentious matters, such as employment advice and litigation, unfair dismissal and adverse action, equal opportunity and anti discrimination, managing industrial action, enterprise bargaining and preparing employment and contractor agreements. She also regularly helps clients with executive and director engagement, termination matters, due diligence and corporate transactional support, complex restructuring and workplace change programs. Anna has run many large scale pieces of litigation and employee entitlement reviews and remediation programs.
Anna advises Boards regularly and currently is Chair of Council at St Hilda's Anglican School for Girls and a Director and Company Secretary at the Black Swan State Theatre Company.
Notable Work
- Commonwealth Bank of Australia: acts in a variety of employment and industrial relations matters including running large scale Federal Court litigation and advises on many significant matters such as CBA's compulsory vaccination program. Anna was a member of the Royal Commission legal team and spent several months on secondment to CBA in Sydney.
- Commonwealth Bank of Australia: represented in proceedings brought by the Fair Work Ombudsman and in a representative proceeding brought by the Finance Sector Union in the Federal Court in Sydney.
- University of Western Australia: Anna acts in a broad range of matters, including recently appearing as Counsel in a successful defence of a breach of contract claim. Anna also runs workplace training at UWA.
- Glencore Nickel / Minara Resources Ltd: advising on all aspects of employment, safety and industrial relations matters, and provides ongoing on a wide range of matters including negotiating enterprise agreements, strategic workplace change, right of entry, employee entitlements and managing ill and injured employees, employment contracts and policies.
- Bellevue Gold: works closely on employment, industrial relations and safety matters as the operations have re-commenced production.
- City of Wanneroo: assisted on its transition from a National System to a State system employer and worked with the City to apply for registration of its first State system industrial agreement.
- Mineral Resources: collaborated closely with during a rapid expansion phase, delivering ongoing advisory services spanning various aspects of employment and industrial relations, ensuring smooth growth.
- BHP: conducted thorough workplace investigations, showcasing Anna's capability in handling sensitive and complex workplace matters, while ensuring compliance with regulations.
- Large private investment house: works with a number of the portfolio companies for a large private investment house based in Perth, with operations all over Australia, across a variety of employment and industrial relations matters.
- Bis Industries: assists across a broad range of contentious and non contentious matters in employment matters and enterprise bargaining.
Insights
Chambers Global Practice Guides - HR Internal Investigations 2025
19 Mar 2025 | Document
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Closing Loopholes No 2: What you need to know about the next raft of changes commencing 26 August
26 Aug 2024 | Article
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Media Release: Clayton Utz acts for Bhagwan Marine on its successful IPO and ASX listing
30 Jul 2024 | Media Release
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Fair Work Commission to review fixed term clauses in university modern awards
22 Jul 2024 | Article
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New rules for fixed-term contracts from 6 December 2023: are you ready?
30 Nov 2023 | Article
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IR reforms 3.0: get ready for changes to casual and gig employment, labour hire, wage theft and union rights
5 Sep 2023 | Article
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Contract remains king and the superannuation guarantee is still unsettled, so check your independent contractor contracts
29 May 2023 | Article
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Poor report card on modern slavery compliance acknowledged with $8m to implement Anti-Slavery Commissioner
12 May 2023 | Article
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Employment outside NSW won’t automatically count for long service leave in NSW, so review how you track it now
15 Dec 2022 | Article
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Secure Jobs, Better Pay Bill to be introduced to Federal Parliament next week, but how far it goes is still unknown
19 Oct 2022 | Article
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Revised Building Code released, and reduction in powers of the ABCC
26 Jul 2022 | Article
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Federal election 2022: The new Labor Government's industrial relations agenda at a glance
23 May 2022 | Article
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The terms of the contract are decisive of the employee/contractor issue – with some provisos, says High Court
11 Feb 2022 | Article
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Mandatory COVID-19 vaccination policies still possible, if done correctly
6 Dec 2021 | Article
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My employee refuses to be vaccinated against COVID-19: What do I do?
29 Nov 2021 | Article
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New WA procurement regulations raise the stakes for government suppliers
25 Nov 2021 | Article
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Mythbusting legal misinformation about COVID-19 vaccine mandates: what employers can do
16 Nov 2021 | Article
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Media Release: Clayton Utz advises Empired Limited on $233 million merger with France's Capgemini
2 Nov 2021 | Media Release
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New mandatory COVID-19 vaccination for Victorian authorised workers
8 Oct 2021 | Article
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WA mining mandate: the latest sector to mandate the COVID-19 vaccine
5 Oct 2021 | Article
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High Court overturns Rossato decision giving clarity around casual employee classification
5 Aug 2021 | Article
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The Federal Government's omnibus IR reforms legislation: what is in, what is out, and what you need to do now
10 Dec 2020 | Article
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WHS overhaul as Western Australia set to adopt the harmonised WHS laws
23 Oct 2020 | Article
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High Court gives employers some relief by fixing unreasonable view of personal leave accruals
13 Aug 2020 | Article
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Victoria's work restrictions – considerations for all Australian employers
3 Aug 2020 | Article
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Victorian employers' COVID-19 incident notification duties have changed
30 Jul 2020 | Article
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Victoria to mandate face coverings - what does this mean for PCBUs across Australia?
21 Jul 2020 | Article
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Media Release: Clayton Utz advises Eagle View Technologies on strategic sale
20 May 2020 | Media Release
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Employer liability for an employee illegally dumping waste – despite express instructions
14 May 2020 | Article
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Media Release: Clayton Utz advising Eagle View Technologies on strategic sale
24 Apr 2020 | Media Release
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Federal Parliament passes legislation meaning JobKeeper payments will soon flow
8 Apr 2020 | Article
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Employee underpayments in focus as Senate establishes wage theft inquiry
15 Nov 2019 | Article
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Hold Your Fire! Anonymous tweeting can breach the APS Code of Conduct and justify termination
8 Aug 2019 | Article
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Federal Election 2019 – key workplace issues 03: Labour hire and sham contracting
21 Mar 2019 | Article
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Your casual workers are not actually casual, says Full Federal Court – so review all casual engagements now!
17 Aug 2018 | Article
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Compulsory Family and Domestic Violence Leave is on the way for Modern Awards
27 Mar 2018 | Article
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High Court gives significant win to employers during enterprise bargaining
6 Dec 2017 | Article
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Update: 10 beers too many: Full Bench overturns ship captain's unfair dismissal decision
26 Oct 2017 | Article
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Dismissal too harsh despite breach of zero-tolerance policy in safety critical industry
20 Jul 2017 | Article
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Penalty rate cuts for hospitality and retail sectors – transitional arrangements commence on 1 July
6 Jun 2017 | Article
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Sunday and public holiday penalty rates in modern awards reduced for hospitality and retail sectors
23 Feb 2017 | Article
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