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.
INVESTStuttgartWH SelfInvest
1 Min. Lesezeit
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.
AnlegertagMunichWH SelfInvest
1 Min. Lesezeit
New: Tax Summary PDF for Your Anlage KAP
BubbleTax now generates a separate tax summary PDF – a few pages instead of 900, with every figure you need for your German Anlage KAP.
BubbleTaxUpdateTax Summary
1 Min. Lesezeit

Webinar: IBKR German Tax Return & Trading Logic (Recording)
Recording of our 51-minute webinar with WH SelfInvest and stock3: why IBKR data alone doesn't produce a tax-ready German return.
WebinarInteractive BrokersIBKR
1 Min. Lesezeit
Why We're Starting This Blog – And What to Expect
What we've learned building BubbleTax about FIFO chains, FX gains and German loss-offset buckets – explained in plain English.
IBKRTax ReturnInteractive Brokers
1 Min. Lesezeit