Why does Chart of Accounts show balance for some accounts only?

The Chart of Accounts screen in BQE CORE shows a balance for your balance sheet accounts (say Bank, A/R or A/P), but not your profit and loss accounts (say Income or Expense). However, you can always run the Profit and Loss reports to analyze your finances. You can even see a snapshot of such accounts from their row-action menu in Chart of Accounts. Check out this article for details: How to print an account snapshot.