Retirement tax questions

No.

Social security only becomes  taxable when added to sufficient other income. If you are otherwise required to file a tax return, you do need to enter it in Turbotax (TT). TT will determine the taxable portion.

Social security (including SSDI) becomes taxable when your income, including 1/2 your social security, reaches:

Married Filing Jointly(MFJ): $32,000

Single or head of household: $25,000

Married Filing Separately and lived with your spouse at any time during the tax year: $0

How much  is "sufficient other income"? The simple answer is $10,150 (a single person's filing requirement). But the answer varies dependent on marital status, filing status, age, the amount of your Social security, and whether you are claimed as a dependent by someone else.

Sufficient Income sample calculation https://ttlc.intuit.com/questions/3373957-will-we-have-to-pay