Hey @John Wildgoose,
Currently, the feature to add the expense category on your VAT Detail report is still unavailable. Let me provide some details about this.
There isn't an exact time when this feature would be available in QuickBooks. But our engineers are working hard to make the product better.
The workaround provided by my colleagues above is still the best way to get the information you need in one report.
Don't worry, I'll personally let our engineers know of your suggestion. I know this would be a great feature for our users.
Don't hesitate to let me know if you have any other concerns.