Didn’t add mortgage monthly payment

You cannot add your monthly mortgage payment.    You can add the amount of interest you paid for the mortgage in 2019.  It might not have any effect.

HOMEOWNERSHIP DEDUCTIONS

It is very hard for a lot of people to use itemized deductions now that the standard deduction is so much higher.  Your home ownership may not have any effect on your tax due or refund, especially if you purchased the house late in the year.  

Standard Deduction
Your itemized deductions have to be more than your standard deduction before you will see a change in your tax owed or tax refund.  The deductions you enter do not necessarily count “dollar for dollar;” many of them are subject to meeting  tough thresholds—medical expenses, for example, must meet a threshold that is pretty hard to reach.  The software program uses all the IRS rules that apply to the expenses you enter, and it tells you if you have enough to use your itemized deductions or if using the standard deduction is more advantageous for you.  Under the new tax laws, some deductions have been capped—there is a $10,000 limit to the itemized deductions for state, local, property and sales taxes. 

2019 Standard Deduction Amounts

Single $12,200   (+ $1650 65 or older)

Married Filing Separate  $12,200   (+ $1300 if 65 or older)

Married Filing Jointly $24,400   (+ $1300 for each spouse 65 or older)

Head of Household $18,350  (+ $1650 for 65 or older)

Go to Federal> Deductions and Credits> Your Home to enter mortgage interest, property taxes, private mortgage insurance (PMI) and loan origination fees (“points”) that you paid in 2019.  You should have a 1098 from your mortgage lender that shows this information.  Lenders send these in January/early February.

Look on line 9 of your Form 1040 to see your itemized or standard deduciton.