It’s not that simple. It’s a formula. It’s when 1/2 of SS is added to your other taxable income part of SS MAY be taxable. have you entered all your income yet?
You can try using the worksheet 703 on the back of the SSA-1099. It can be complicated to figure out even though it looks simple. Turbo Tax figures it all out for you. Notice 703
https://www.irs.gov/pub/irs-pdf/n703.pdf
When you enter 1/2 of your ss on line B it is not being subtracted from anything. It is being ADDED to ALL your other income to see if any of the ss will be taxable to you.
And look at your return to see how Turbo Tax is figuring the taxable amount on 1040 line 6b. Do you have the full Social Security on line 6a? And nothing on 6b?
To see the Social Security Benefits Calculation Worksheet in Turbo Tax Online version you would have to save your return with all the worksheets to your computer. Or if you are using the Desktop CD/Download Software you can switch to Forms Mode (click Forms in the upper right) and click on SS in the list on the right side.
