How did they calculate my total income?

[CCSunshine1947]

My social security benefits were $27,330.  Why is my total income only showing $1,836?

[ThomasM125]

You must be talking about your income used to determine your tax,  which is different from your gross income if you have social security income. Only a portion of your social security income is taxable, depending on the amount of it and your other income. It can be as low as zero, so it is possible that your taxable social security income is $1,836. 

[VolvoGirl]

What line is the 1,836  on?  What other income do you have?

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

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 left side.