How can I separate taxable and tax exempt sales for tax reporting?

I am reporting my monthly sales for tax purposes (state of Texas) but I have at least two to three tax exempt sales (or donations) each month and I can not figure out how to break that down when I am doing a report. It just shows the tax amount for the month, but when I put in net sales in our comptroller system, I’m always pay around $100-$200 more than it shows in Shopify. That’s because some of those sales were tax exempt. How can I break down the sales that were taxable vs. tax exempt? Thanks for your help!

I am having the same issue. Has no one answered this question in almost 2 years???