A whole new world now that one of us is on a 1099-NEC - TurboTax Self-Employed?

This week, my husband started a new job in which he is treated as a contractor of sorts and will receive a 1099-NEC instead of a W2. No taxes will be taken from his pay as is typical in this situation. I know that I should make quarterly estimated tax payments and have read the below articles to help me better understand everything we need to know.

 

My questions are:

  1. Am I right in understanding that the TurboTax Self-Employed "software" is what I can use to help me in estimating and making those payments?
  2. Does it calculate deductions for business expenses?
  3. Does it help me determine what I need to pay and to who (i.e. fed, state, SS, Medicare)?
  4. Is there a digital download version versus the "using it on the web" sort of of thing available?

Here are the articles I've reviewed up to this point:

Huge thanks in advance!