How do I claim expenses from a previous year to offset income from rental arrears received this year?
1099-SSA - does it include the total of monthly BENEFITS from previous year or the total of monthly PAYMENTS (which are paid one month in arrears)?
If my first ever Social Security check arrives in January 2024 because I am 70 in December 2023, is that income part of 2023 tax year (paid in arrears I believe) or 2024?