My Personal Info Summary has my correct birthday, 1956, and my deceased wife's correct birthday November 1959. She was 64 when she died in January 2024 but would have turned 65 in November 2024 had she lived. The Standard Deduction box asks if my spouse was born before January 2, 1960. She was - November 1959. However she died in January 2024, before she turned 65.
