"...would like to claim them this year. "
You do not mean you think you can put itemized deductions from some past years on your 2023 tax return, do you? You cannot do that. Deductions must be entered for the specific tax year. You might be able to amend a 2020, 2021 or 2022 return in order to use a deduction if you forgot to enter it for the tax year in which you filed. You cannot put past year itemized deductions on your next tax return.
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
