Introduction
The Federal Court of Australia's decision in Greenwich v Latham (No 3) [2025] FCA 312 explains the principles governing costs orders in defamation proceedings where a plaintiff achieves partial success. This case represents a contribution to the jurisprudence on costs apportionment in defamation matters, particularly when dealing with multiple publications and imputations. Justice O'Callaghan's reasoning offers practical guidance on when costs should follow the event despite a plaintiff's partial success, and when indemnity costs might be warranted following the rejection of a settlement offer.
Background: Costs Principles in Defamation Proceedings
The apportionment of costs in defamation proceedings has evolved considerably in recent years, with courts increasingly willing to divide costs to reflect the parties' respective successes and failures. The legal framework for costs orders in the Federal Court includes s 43 of the Federal Court of Australia Act 1976 (Cth), which vests a wide discretion in the Court with respect to costs.
As summarised by White J in Hockey v Fairfax Media Publications Pty Ltd (No 2) (2015) 237 FCR 127 (Hockey (No 2)), the relevant principles include:
The wide discretion must be exercised judicially (Hockey (No 2) at 134 [37]);
Ordinarily, costs follow the event, with a successful litigant receiving costs absent special circumstances (Hockey (No 2) at 134 [37]);
Courts are increasingly prepared to apportion costs where a party succeeds on only some claims (Hockey (No 2) at 143 [88]);
A litigant succeeding on only part of their claim may reasonably bear the expense of litigating unsuccessful portions (Hockey (No 2) at 134 [37]); and
Apportionment may be appropriate where issues on which the plaintiff failed were "clearly dominant or separable" (Hockey (No 2) at 142 [87]).
Facts of the Case
Greenwich v Latham (No 3) concerned the costs determination following Justice O'Callaghan's judgment in Greenwich v Latham [2024] FCA 1050 (the primary judgment). The defamation proceeding was brought by Alexander Greenwich, member for Sydney in the NSW Legislative Assembly, against Mark Latham, an independent member of the NSW Legislative Council, regarding two publications: the "primary tweet" and the "DT quotes" (at [2]-[3]).
At trial, Mr Greenwich contended that each publication conveyed two defamatory imputations and claimed damages for non-economic loss, aggravated damages, and injunctive relief (at [3]).
Regarding the primary tweet, Justice O'Callaghan found that:
The imputation that Mr Greenwich "engages in disgusting sexual activities" was conveyed and was defamatory (at [5], [9]);
The imputation that Mr Greenwich "is not a fit and proper person to be a member of the NSW Parliament because he engages in disgusting sexual activities" was not conveyed (at [6]).
Regarding the DT quotes, Justice O'Callaghan found that:
Neither pleaded imputation was conveyed (at [8]).
Justice O'Callaghan awarded Mr Greenwich $100,000 in damages for non-economic loss and $40,000 in aggravated damages (at [12]). A subsequent application for injunctive relief was dismissed in Greenwich v Latham (No 2) [2025] FCA 131 (at [13]).
The Court's Reasoning on Costs
Apportionment of Costs
Mr Latham submitted that each party should pay its own costs or, alternatively, that he should only be ordered to pay one quarter of Mr Greenwich's costs on a party-party basis (at [22]-[24]). This submission was based on Mr Latham's claim that he succeeded on a "preponderance of the issues" - specifically, the second pleaded imputation regarding the primary tweet and the entirety of the claim regarding the DT quotes (at [24]).
In contrast, Mr Greenwich argued he should be awarded the whole of his costs because he was successful in his claim and there was no reason costs should not follow the event (at [25]). Mr Greenwich's counsel, Dr Collins AM KC, submitted that it was misconceived to rely on a numerical comparison of issues (at [26]).
Dr Collins advanced five key reasons why the case would have been run in exactly the same way even if Mr Greenwich had sued only in respect of the primary tweet (at [27]):
The affidavit evidence relied upon would have been identical, covering necessary background, context, and damages (at [27(1)]);
All the same witnesses would have been called (at [27(2)]);
The DT quotes case was not severable from the primary tweet case due to "an unbroken chain of causation" between the publications (at [27(3)]);
The second pleaded imputation regarding the primary tweet involved only brief legal argument with no additional evidence (at [27(4)]); and
All evidence about serious harm would still have been necessary (at [27(5)]).
Justice O'Callaghan found these submissions "irresistible" and accepted that Mr Greenwich should recover his costs of the proceeding (at [29]). His Honour noted that while Mr Greenwich was unsuccessful in his application for injunctive relief, this was offset by delays and expenses caused by Mr Latham's insistence that Mr Greenwich provide sworn evidence about his sources of funding for the proceeding (at [30]).
Indemnity Costs
Mr Greenwich submitted that costs should be paid on an indemnity basis, principally because Mr Latham unreasonably rejected an offer to settle contained in a concerns notice dated 19 April 2023 (at [32]). The offer included terms requiring:
A public apology and retraction;
Permanent disabling of comments on the apology;
Undertakings not to publish similar imputations in future;
Payment of Mr Greenwich's reasonable expenses; and
Payment of $20,000 compensation (at [33]).
After reviewing the principles governing indemnity costs following rejected settlement offers from CGU Insurance Ltd v Corrections Corporation of Australia Staff Superannuation Pty Ltd [2008] FCAFC 173 and Futuretronics.com.au Pty Ltd v Graphix Labels Pty Ltd [2009] FCAFC 40, Justice O'Callaghan was not persuaded that Mr Latham's rejection of the offer was unreasonable (at [44]).
His Honour reasoned that:
The DT quotes were not defamatory, yet formed a significant part of the concerns notice (at [44]);
The undertakings sought were "very broad and unlimited in time" (at [44]);
The proposed terms would have imposed "onerous obligations to monitor social media that may have posed difficulties in enforcement" (at [44]).
Consequently, Justice O'Callaghan declined to award costs on an indemnity basis (at [46]).
Practical Application: A Worked Example
Consider the following hypothetical scenario:
Plaintiff X sues Defendant Y for defamation regarding three separate publications (A, B, and C). Each publication has two pleaded imputations. At trial, X succeeds on both imputations for publication A, one imputation for publication B, and fails entirely on publication C. X is awarded $150,000 in damages.
Applying the principles from Greenwich v Latham (No 3):
Consider whether the successful and unsuccessful claims are truly separable or whether they form part of an interconnected narrative;
Determine whether the same evidence would have been necessary even if only the successful claims had been pursued;
Assess whether the unsuccessful publications or imputations added significant complexity or length to the proceedings.
If the evidence and witnesses would have been largely the same regardless of whether publications B and C were included, a court would likely award X their full costs despite the partial success. However, if publication C required distinct evidence and significantly extended the proceedings, the court might reduce X's recoverable costs to reflect this unnecessary expenditure.
Guidance for Practitioners
When advising clients on costs in defamation proceedings with partial success, practitioners should:
1. Assess Practical Severability
Consider whether the successful and unsuccessful claims share common evidentiary foundations
Determine if the same witnesses would have been required even without the unsuccessful claims
Evaluate whether preparation would have been substantially different if only successful claims were pursued
2. Evaluate the Relative Significance of Claims
Consider whether the unsuccessful claims were peripheral or central to the overall case
Assess the proportion of court time and evidence devoted to unsuccessful claims
Determine whether unsuccessful claims significantly extended proceedings
3. Consider Settlement Offers
Ensure settlement offers are reasonable and proportionate
Make offers that acknowledge the strength and weaknesses of the case
For defendants, consider the potential for indemnity costs when evaluating settlement offers
4. Prepare Detailed Records
Document time spent on different aspects of the case
Keep records that differentiate between work on distinct publications or imputations
Be prepared to demonstrate how time and resources would have been allocated if only successful claims were pursued
Arguments and Evidence for Each Side
For Plaintiffs Seeking Full Costs
Evidence that the same witnesses would have been called regardless of unsuccessful claims
Documentation showing that preparation for successful and unsuccessful claims overlapped significantly
Evidence that the defendant's conduct necessitated pursuit of all claims together
Argument that unsuccessful claims formed part of a single narrative requiring comprehensive treatment
For Defendants Seeking Apportionment
Evidence that unsuccessful claims significantly extended proceedings
Documentation of distinct evidence pertaining solely to unsuccessful claims
Argument that unsuccessful claims were clearly separable and dominant parts of the case
Time records showing disproportionate resources devoted to unsuccessful claims
Key Takeaways for Legal Practice
Severability is Practical, Not Theoretical: The test for apportionment turns on practical considerations of how the case would have been run, not merely the numerical proportion of successful claims.
Evidence Overlap is Crucial: Where the same evidence would have been necessary even if only successful claims were pursued, courts are unlikely to apportion costs.
Careful Offer Construction: Settlement offers should be carefully constructed to make rejection unreasonable. Broad undertakings and coverage of ultimately unsuccessful claims may undermine arguments for indemnity costs.
Document Resource Allocation: Practitioners should document how resources are allocated between different aspects of a case to support or defend against apportionment applications.
Look Beyond Numbers: Courts will not merely count successful versus unsuccessful imputations but will assess their relative significance and the resources devoted to them.
Conclusion
Greenwich v Latham (No 3) represents a significant contribution to the evolving jurisprudence on costs in defamation proceedings. Justice O'Callaghan's decision reinforces that courts will take a practical approach to costs apportionment, looking beyond mere numerical success to consider how the case would actually have been conducted if only the successful claims had been pursued.
The decision also highlights the challenges plaintiffs can face in securing indemnity costs following rejected settlement offers, particularly where those offers encompass ultimately unsuccessful claims or contain broad undertakings that may be difficult to enforce.