On the Settings page, the "Delete this budget" button can be a little ambiguous with the word "Budget". It would be good to change the button to read “Delete this entire budget account” or “Permanently delete budget account data.”
The copy in the confirmation dialog should also be improved to clearly state that the action deletes all associated data of the budget account, including accounts (bank/credit card), transactions, categories, tags, recurring items, and historical balances.