You'll need to get your wallet address for each blockchain you interact with using Polkawallet - for example Polkadot, Kusama and Edgeware. The instructions will be similar for each.
Polkawallet doesn't offer a CSV file export option just yet - however, you can use a blockchain explorer to get your Polkawallet transaction history CSV file or create a custom CSV file.
Good to know
If you have any crypto income - for example through staking - in your Polkadot wallet, make sure these are correctly tagged in Koinly for your country's tax rules.
Need help with your Polkawallet data import? No problem: