You would find these amounts on your Schedule A for Itemized Deductions. I have included a link to a blank copy so you can see what it looks like. The total amount of itemized deductions are then transferred to Line 40 of Form 1040.
https://www.irs.gov/pub/irs-pdf/f1040sa.pdf
A couple of things (1) you will need to have more total itemized deductions than the standard deduction ($6,350 if single, $12,700 if married filing jointly) in order to use itemized deductions (otherwise TurboTax will use the standard deduction for you and you may not have a Schedule A) and (2) deductions only reduce your taxable income - they won't provide you with a direct refund of the amounts you paid for mortgage/property taxes.
You would find these amounts on your Schedule A for Itemized Deductions. I have included a link to a blank copy so you can see what it looks like. The total amount of itemized deductions are then transferred to Line 40 of Form 1040.
https://www.irs.gov/pub/irs-pdf/f1040sa.pdf
A couple of things (1) you will need to have more total itemized deductions than the standard deduction ($6,350 if single, $12,700 if married filing jointly) in order to use itemized deductions (otherwise TurboTax will use the standard deduction for you and you may not have a Schedule A) and (2) deductions only reduce your taxable income - they won't provide you with a direct refund of the amounts you paid for mortgage/property taxes.
My form is a 1040A not a 1040. Where is it on that form or did I use the wrong one?
It's not necessarily the "wrong" form. It just likely means you didn't have enough total itemized deductions to use Schedule A and Form 1040. You get one or the other - either the standard deduction or itemized deductions (mortgage interest, property taxes, charitable, etc). When you enter all your individual itemized deductions, TurboTax will compare the total amount to your eligible standard deduction ($6,350 if single, $9,350 if head of household, or $12,700 if married jointly) and give you the larger deduction. So, in your case, the standard deduction was likely still larger than your itemized deductions.