Tag expenses and sum by tag

Yes that’s not a bad workaround, but I already use the notes functionality for annotating transactions (for example, in this post :link:) and I’d prefer to keep this separate.

Also, adding tags could help with budgeting. Revolut allows us to set budgets for each of the default categories, but not for our own categories. If we were able to set up custom tags, these could be used for this purpose: