Adil Al Hasan, Jakarta – The Head of the Economic Division at PT Bank Central Asia Tbk, David Sumual, stated that the Sumatra floods caused a 0.31 percent decrease in spending, equivalent to Rp18.58 trillion of the gross domestic product in the fourth quarter of 2025. The condition arose because the purchasing power of flood-affected communities decreased automatically.

"The post-disaster consumption effect has the potential to decrease by 0.31 percent," he told the media in Jakarta on Monday, December 15, 2025.

David explained that consumption in West Sumatra is projected to decrease by 25.53 percent, or Rp3.8 trillion; in North Sumatra, by 22.31 percent, or Rp11.8 trillion; and in Aceh by 23.92 percent, or Rp2.8 trillion.

In the third quarter of 2025, David stated that Aceh contributed 1.16 percent to the GDP, North Sumatra 4.85 percent, and West Sumatra 1.49 percent. "With the assumption that people's spending will continue to deteriorate until December 2025," he said.

Meanwhile, the Center of Economics and Law Studies (Celios) estimated that the flood disaster in Sumatra caused an economic loss of Rp68.67 trillion. The floods in three provinces, namely Aceh, North Sumatra, and West Sumatra, have impacted the regional and national economy.

The losses include damage to residential homes and infrastructure, such as roads and bridges, as well as lost agricultural production.

"Nationally, there has been an impact of a 0.29 percent decrease in the Gross Domestic Product, which amounted to Rp68.67 trillion," as quoted from Celios' publication entitled "Impact of the Economic Loss of Sumatra Flood Disaster" cited on December 3, 2025.

– Ilona Esterina contributed to the writing of this article

Source: https://en.tempo.co/read/2073623/sumatra-floods-expected-to-cut-public-spending-by-rp18-58-trillio