I see says the blind man.  To keep the above solution normalized, I would change it slightly as follows (since TaxType can be derieved from Statementdescription):

Table - AcccountStatementUsageDescription

AcccountStatementUsageDescriptionID

AccountTypeID...

Ok, I've made the image available to everyone. 

Also, I've added a small note to the initial problem for jfmccaeb and stewart:  Although taxtype can be derived from a statement description,...