How do I add a new “Detail Type” category to the chart of accounts?
Sorry, Intuit hard-wired “Detail Type” category, you can’t add or edit it. The same thing applies to Category Type as well. I think choosing the right Category Type is more important.
For example, bank accounts are grouped together on the Balance Sheet under Assets and subcategorized as Current Assets.
So, select the right Category Type, choose the Detail Type (closet one that is applicable) and Name it as you want it.