You haven't provided enough info for us to be able to provide definitive feedback. Search and find IRS Pub 936 and then review pages 12-14 which includes instructions. Variables that impact your Q include whether you file married or single, whether you took out cash (i.e. the new loan balance was larger than the outstanding balance of the prior loan) and other variables specific to your circumstances.
What ultimately worked for me in Turbotax was to load the combined interest and RE taxes paid in 2020 on BOTH mortgages into the fields for interest and taxes on the original mortgage, and $0s for these two entries for the new mortgage that paid off the original loan. Turbotax instructs users on the first step described above (in a pop up window) but is silent on step 2 (entering $0s for int and taxes for the new loan) but the calculations were accurate for me. good luck
