If I refinanced my home for a lower interest rate in 2019 do I still keep checking that it's a refinance from a previous loan? We did not take any money out.

[Bsch4477]

You refinanced. Doesn’t matter if you didn’t take any money out. 

[Carl]

Do I still keep checking that it's a refinance from a previous loan?

No. You only do that for the tax year the refi occurs, so the program doesn't double-count your mortgage interest payments to each lender and apply the $750K limit if adding both mortgage balances would result in exceeding that.