The 13 to 15 October floods, Istanbul's heaviest rain since records began in 1942, had produced insurance costs above 4.5 billion lira ($91 million) in the city by 21 October, from 3,017 claim files, 2,041 of them property and 976 motor, with notifications still arriving. Aon counts more than 3,000 claims across Istanbul and five other provinces.

Sources: Insurance Association of Türkiye data, via Evrensel (2026-10-21); Aon, via AM Best (2026-10-26). Converted at the 21 October rate.