Hi brownhound,
At the moment, we're unable to add the subtotal line using the iOS app. Though, you can use your regular browser to add the subtotal item.
I'd recommend sending feedback to our product engineers here: https://feedback.qbo.intuit.com/. I’ll also share this idea with them. Suggestions help us create features based on what users need for their companies.
We appreciate your feedback. If there's anything else you need help with QuickBooks please feel free to leave a comment below.
