BubbleTax Blog
Anleitungen, Hintergrundwissen und Updates für Interactive Brokers Nutzer in Deutschland
BubbleTax at INVEST Stuttgart 2026
April 17 at INVEST Stuttgart: Where trading data and German tax logic collide. Live + livestream.
BubbleTax live at Anlegertag München 2026
On March 28, we'll be at Anlegertag München. Together with WH SelfInvest, we'll show where trading data and German tax logic collide.
New: Tax Summary – the report you actually want to read
Getting a 900-page detail report is great for evidence. Not so great when you just need the numbers for your tax return. BubbleTax now generates a separate tax summary PDF – a few pages with everything that matters.
Webinar: Interactive Brokers Tax Return – Where Trading and Tax Logic Collide
Our webinar with WH SelfInvest and stock3 is now available as a recording. 51 minutes on why IBKR data alone doesn't produce a tax-ready return, and where things concretely break down.
Why We're Starting This Blog – And What to Expect
Interactive Brokers and German tax law don't fit together seamlessly. Here we write about what we've learned building BubbleTax: FIFO chains, currency gains, tax buckets, and the areas where things get complicated.