The paper says that, with over 46 million acres burnt and 5,900 buildings destroyed, the 2019-2020 Australian bushfire season was estimated to involve over US$100 billion in damage and economic costs. This supports the broad scale of the estimate, though it uses U.S. dollars and does not specifically say A$103 billion.

The report states that the 2019-20 bushfire season led to over 24 million hectares of land being burnt and the deaths of 33 people. It also says the economic costs of this event were estimated at over A$100 billion to the Australian economy. This is the closest primary-source-style estimate in the search results to the claim of A$103 billion.

In summarising national disaster costs, the document notes: "The 2019-20 bushfire season led to over 24 million hectares of land being burnt and the deaths of 33 people." Immediately following this, it states: "The economic costs of this event were estimated at over $100 billion to the Australian economy." The text cites Deloitte Access Economics (2021) as the underlying source for the estimate.

Discussing the Black Summer bushfires, the report notes that the Insurance Council of Australia "estimated the cost of insurance claims from the summer bushfires was $2.4 billion, with over 38,000 claims lodged." It also provides an estimate of the macroeconomic impact: "The economic impact of the bushfires is estimated to be $4.6 billion, or a 1.8 per cent reduction in the affected regions GDP." The document then explains how insurance claim payments boosted local GDP and partially offset this impact.

Reporting on early estimates, the article states: "The total economic cost of the bushfires will be as high as $100 billion, according to economist Richard Denniss, chief economist at The Australia Institute." It explains that this figure includes "loss of life, destruction of property, damage to agriculture and tourism, and the broader hit to economic confidence." The story repeatedly describes the impact as "approaching $100 billion" rather than giving a more specific figure such as $103 billion.

The article says the Black Summer fires were Australia’s costliest natural disaster, with costs approaching $100 billion. It presents the estimate as an economic-cost figure rather than an insured-loss figure.

Discussing the 2019–2020 Black Summer fires, the analysis states: "Between June 2019 and March 2020, the Black Summer bushfires burned across Australia, causing loss of life, widespread destruction of forests (many in protected areas), and economic impacts estimated to exceed $100 billion." It frames the fires as Australia’s costliest natural disaster.

This report discusses displacement and related economic effects from the 2019-2020 bushfires, but the figures visible in the search result are limited to housing and livelihood impacts. It does not directly confirm the A$103 billion estimate in the excerpt shown.

Covering a medical cost study, ABC reports that researchers estimated the health impact of bushfire smoke during the 2019–20 season: "The direct health costs of the summer’s bushfire smoke may have been more than $1.95 billion." The story notes that this figure includes hospital admissions, emergency department presentations and lost productivity, and that these health costs are a component of the wider economic burden of the Black Summer fires.

ABC quotes Australia Institute chief economist Richard Denniss as saying: "The economic cost of the bushfires could reach $100 billion, making them Australia's most expensive natural disaster." The report clarifies that this estimate "includes everything from property damage, lost income, health costs and the economic impact of smoke haze" and is presented as a broad, indicative figure. No precise estimate such as $103 billion is cited; the public discussion is framed around the round number of $100 billion.

A University of Sydney release on the "Fire on the Farm" report notes: "A new report by the World Wide Fund for Nature-Australia and researchers at the University of Sydney estimates the 2019-20 bushfires cost Australian agriculture between $4 billion and $5 billion." It explains that this includes damage to farm buildings and equipment, reduced farmland values, crop losses, over 100,000 livestock deaths, and health impacts from smoke inhalation.

Deloitte Access Economics summarises its work on natural disaster costs, stating that "the total economic cost of natural disasters is growing and will reach $39 billion per year by 2050." Earlier work by Deloitte and the Australian Business Roundtable is referenced as providing detailed event-level estimates and a framework in which intangible and long-term costs can at least double direct tangible losses.

A University of Sydney study found the Black Summer bushfires caused $2.8 billion in total output losses to tourism supply chains and almost 7,300 jobs disappearing nationwide. This is a sector-specific component of economic damage, not the total economy-wide cost.

The paper estimates that the net present value of the national welfare loss is $63 billion, with $10 billion attributed to bushfires. This is a materially lower estimate than A$103 billion and suggests that published estimates vary by methodology and scope.

Moody’s says the Black Summer bushfires caused AUD2.4 billion in insured loss and notes that some economic-loss estimates exceed AUD10 billion. It therefore distinguishes insured loss from broader economic loss and does not itself confirm an A$103 billion total.

In early 2020, an Australian Business Roundtable-style estimate and related commentary circulated widely, often rounded to about A$100 billion. Claims specifying A$103 billion usually reflect a rounded or derived estimate rather than a single universally cited official tally.