Senior Deduction Missing From Return

[omyshell]

Per my understanding, if I'm over 65, filing Separate, and made more than $75,000 but less than $175,000, I should still get a percentage of this year's $6,000 Senior Deduction. However, no where on my tax forms using 2025 Turbotax Deluxe can I find this deduction.  The amount I qualified for should be listed on my 1040 under line 13b, but this line is blank.  I double checked that all my personal information, including my birthdate was entered correctly, and it is. Therefore, why did I not get the percentage of the deduction I qualified for on my tax return?  

[DoninGA]

If you are filing as Married Filing Separately you are not eligible for the additional $6,000 senior deduction.