New ... Buttons Missing - Since the icons to create new schedules, accounts, institutions etc may not be very clear/convenient, we should have New ... buttons for each screen "consistently". Here is a picture that shows this -
Type of Accounts Having some information text/label on the screen, about the kind of accounts that exist(credit, loan, debit, checking etc) will help users understand what are the requirements in opening that account. ( See image below)
Opening Balance for a credit card ? Is it a dead field in a Credit Card context ?
Preferred Account New Users may not have an idea of whats a preferred account. Any informational label can help here too.
Help The help button on the New Account wizard, does not take me to the current topic but to the KMyMoney General Help. Context sensitive Help would really help :)
Parent Account - Asset, Liability are
type-of-accounts than an
account itself, they should not be named as parent
accounts . Income and Expense are categories and shouldn't show up in Accounts screen (They should show up in Categories view only). IMHO, Hierarchies in accounts and usage of term "Parent" account is confusing.

Edit Account Dialog The Disabled 3D control (drop down lists) have unreadable text, it would be nice to have them slightly darker .
Edit Account Limits Tab Absolute limit does convey clear meaning and Credit Limit exists for all type of accounts.
Edit Account Tax Tab Lots of free screen area could be used to explain what is VAT etc. as an informational label.