Prepare Taxes
Prepare your tax return with transaction data from Interactive Brokers or Tastytrade directly in your browser
100% Browser-based
Your financial data never leaves your computer. Everything is calculated locally in your browser.
Which year do you want to prepare your tax return for?
Supports all tax years from 2019 to 2024
Select Your Broker
We support the most common international brokers for German tax returns
Load CSV File
Load your broker's export file - we'll automatically recognize the format and process it in your browser
Drag file here
or click to select
Supported formats: CSV, TXT
Notes
One file with all transactions for the selected year — plus earlier years for still-open positions
Supported format: CSV only
Maximum file size: 50 MB
Your data stays local