Hi tom66,
It's good you're reaching out on behalf of your client to try and make things simpler for them. I'd be glad to share more on this.
At this time, you can't change the sales tax account since it affects the Accounts Payables. I know how important this is to you and I encourage you to send feedback to our engineers by clicking the Gear icon and looking for Feedback. New product ideas and improvements are largely based on the feedback we get from customers like you.
Let me know if you have other questions. I'll be here to help.
