Hello there, reilabird03.
Adding taxes to the subtotal is unavailable. You'll want to calculate it manually and then add it as a line item on the estimate.
Here's how to do it:
- In the estimate, enter the calculated tax in the line item.
- Click the Add subtotal button.
- Click Save and send or Save and close.
You might also want to check out this helpful article: Set up your sales tax.
If there's anything else you need, please don't hesitate to reach out to me.