Hey Davy, I understand the need for this sort of information. Unfortunately, we don't have this option in Nova Wallet at the moment. Given the number of the chains we support and the variety of events that can affect your account balance, exporting all your transaction data no trivial task.

Subscan, a block explorer, allows you to export your transaction and rewards history on a certain network as a CSV file. Check this guide for the steps: https://support.polkadot.network/support/solutions/articles/65000172796-how-to-export-your-transaction-history-in-a-csv-file. I hope this makes your accounting at least a bit easier!

From my point of view, the ability to download a complete transaction overview (csv and maybe pdf additionally) is important. On the one hand, for yourself. On the other hand, you sometimes need it (also in my country) for government institutions when it comes to proof of income or assets.

There was a similar request by someone few months ago and the devs conveniently ignored it. It just baffled me that they are not able to or why is there a lack of willingness to add this simple feature.

Yup me to. For US resident needs to account for paying income tax on staking income!

Me to, that's exact reason which stops me from using the wallet