Best Broker for Austria 2026

Best broker for Austria: tax simplicity is the deciding factor

In Austria the KESt model decides whether you need to file a tax return every year. A tax-simple broker withholds the 27.5% capital gains tax automatically — you do not need to declare dividends and capital gains yourself. Foreign brokers (including German ones!) are typically not tax-simple, meaning you have to track every trade manually and submit an E1kv form with your annual filing. For buy-and-hold investors using ETF savings plans, this can mean many hours of tax work per year.

Vienna Stock Exchange, ATX and Austrian equities

If you want to invest in OMV, Erste Group or Voestalpine, you need direct Vienna access. Some international brokers offer ATX names, but only via Frankfurt secondary listings — meaning wider spreads and higher fees. Direct brokers with Vienna connectivity like Flatex Austria or ErsteBroker are often the better choice, even when their headline order fees look higher.