I just read on another thread a comment by Didders that you have to pay TAXES on the backpay amount. I was not aware of that...but I'm not aware of a lot of financial stuff! Just wondering if she was referring to back pay from private disability, or if in fact taxes are owed from Social Security payments. I receive both SSI and SSDI and got a nice back payment (4 years worth) last fall. Yikes.