cgt-calc 0.1.0

UK capital gains tax calculator for Schwab and Trading212 accounts

UK capital gains calculator

Calculate capital gains tax by transaction history exported from Schwab/Trading212 and generate PDF report with calculations. Automatically convert all prices to GBP and apply HMRC rules to calculate capital gains tax: "same day" rule, "bed and breakfast" rule, section 104 holding.

Report example

calculations_example.pdf

Setup

On Mac:

brew install --cask mactex-no-gui
pip install -r requirements.txt

Usage

• schwab_transactions.csv: the exported transaction history from Schwab since the beginning. Or at least since you first acquired the shares, which you were holding during the tax year. You can probably convert transactions from other brokers to Schwab format.
• trading212/: the exported transaction history from Trading212 since the beginning. Or at least since you first acquired the shares, which you were holding during the tax year. You can put several files here since Trading212 limit the statements to 1 year periods.
• GBP_USD_monthly_history.csv: monthly GBP/USD prices from gov.uk.
• initial_prices.csv: stock prices in USD at the moment of vesting, split, etc.
• Run python3 calc.py --tax_year 2020 --schwab schwab_transactions.csv --trading212 trading212/ (you can omit the brokers you don't use)
• Use python3 calc.py --help for more details/options.

Testing

pip install pytest
pytest

Disclaimer

Please be aware that I'm not a tax adviser so use this data at your own risk.

Contribute

If you notice any bugs feel free to open an issue or send a PR.