ok for 2019
the total of all those items is $52, 132
taxes are $20,045
a change in the tax laws effective for 2018 limits SALT (and all other schedule A taxes) deduction to $10,000 so you have an excess of $10,045 that is not showing on the same line as the 2020 "amount greater than $10,000". that excess of $10,329 is showing for 2020
$52,132 less the excess taxes leaves you with $42,087 in itemized deductions
as an employee, your job related expenses are not deductible (also effective with 2018)
so $42,087 less the $31 leaves you with the $42,056 in itemized deductions
for 2020 total $42,710
excess taxes $10,329
leaving $32,381
for the original mortgage, you need to enter the balance before the refi this can't be zero. if you did a cash-out refi and didn't use the cash to substantially improve the property a portion of your mortgage interest will be non-deductible.
