Alimony or no alimony?

Marriage 18 years duration
I left the marriage
Only child resides with me

My Income
gross 3515.00 Net 2200.00

Ex spouse
SS disbility $1718.00

There are many factors that go into determining whether alimony is payable, and simply looking at income figures is not enough. It appears that you make twice the amount that your spouse makes, so without knowing more about your case, I would have to believe that there may be some alimony liability on your part.