Apple Developer News:
Apple is making changes to the Taiwan storefront of the App Store, following discussions with the Taiwan Fair Trade Commission.
As of October 31, 2026, the commission rate for standard Apple In-App Purchase and paid app transactions will be 26% on the Taiwan storefront of the App Store on iOS and iPadOS. Currently, that rate is 30%.
Well there we go. The App Store in Taiwan — just like in Japan — is fixed.