Brokers
Tax filing with foreign brokers
IBKR-based brokers don't withhold German Abgeltungsteuer. You report capital gains yourself in Anlage KAP. BubbleTax handles the calculation under German law: FIFO, ECB rates, loss offsetting, every figure traceable back to the original transaction.
What you have to report yourself
Five things every IBKR trader has to calculate for the German return
You pay for global market access and low fees with self-calculated tax. None of these five items is pre-filled anywhere:
Gains and losses under the FIFO method (§ 20 Abs. 4 Satz 7 EStG)
Foreign currency gains from USD, GBP and other currency sub-accounts
Dividends and creditable withholding tax under DTA
Corporate actions such as splits, spin-offs and tender offers
ETF Vorabpauschale and partial exemption under InvStG
Recommended partners
Four brokers that actively recommend BubbleTax
These brokers work directly with BubbleTax and recommend the tax report to their German clients.
MEXEM
Nicosia, Cyprus
MEXEM uses the Interactive Brokers platform and does not withhold German capital gains tax. BubbleTax creates your tax report automatically – as an official MEXEM partner.
Details and guide
WH SelfInvest
Luxembourg
WH SelfInvest offers an all-inclusive service: tax report delivered by email automatically – or upload yourself via BubbleTax. Official partner.
Details and guide
AGORA direct
Berlin, Germany
AGORA direct is a German investment firm authorised under § 15 WpIG, headquartered in Berlin, acting as Introducing Broker for Interactive Brokers Ireland. Official BubbleTax partner.
Details and guide
ProRealTime
Rueil-Malmaison (Paris), France
ProRealTime uses Interactive Brokers for order execution. BubbleTax creates your tax report automatically – coupon available via ProRealTime.
Details and guideAlso supported
These brokers export the required format too
Each broker page contains a step-by-step guide for the Flex Query export and notes on account specifics.
Interactive Brokers
Greenwich, Connecticut, USA
Interactive Brokers does not withhold German capital gains tax. BubbleTax automatically creates a complete tax report from your IBKR data for the German tax office.
Details and guideLynx
Amsterdam, Netherlands (Branch: Berlin)
Lynx uses the Interactive Brokers platform and does not withhold German capital gains tax. BubbleTax creates your tax report automatically from the FlexQuery XML file.
Details and guideCapTrader
Düsseldorf, Germany
CapTrader uses the Interactive Brokers platform and does not withhold German capital gains tax. BubbleTax creates your tax report automatically from the FlexQuery XML file.
Details and guide
Free preview
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Upload your Flex Query XML and check the preview. Completely free. You only pay when you want to buy the report.
Trademarks
All broker names and trademarks mentioned (incl. Interactive Brokers, CapTrader, Lynx, MEXEM, WH SelfInvest, ProRealTime, AGORA direct) are registered trademarks of their respective companies. BubbleTax is an independent tax report service and has no corporate relationship with the brokers mentioned. The mention is solely to describe the compatibility of our service.