As long as your 401K and SS taxable amounts are under the Standard Deduction they won't be taxed. Do you have any other income like a pension? What is your filing status?
For 2025 the Standard Deduction amounts are: (new as of July 5, 2025 OBBBA)
Single 15,750 + 2,000 for 65 and over or blind (17,750)
HOH 23,675 + 2,000 for 65 and over or blind (25,675)
Joint 31,500 + 1,600 for each 65 and over or blind (33,100/34,700)
Married filing Separate 15,750 + 1,600 for 65 and over or blind (17,350)
Up to 85% of Social Security becomes taxable when all your other income plus 1/2 your social security, reaches:
Married Filing Jointly: $32,000
Single or head of household: $25,000
Married Filing Separately: 0
