For Social Security purposes, I was self-employed and had zero income for 10 years. I've been advised to have those years, or most of them, amended by showing I had income from the company (this was done via audit in 2007 by the IRS) and I want to do the rest. My soon to be ex won't sign. How do I proceed to get the signature (all joint returns)? Tax Court? Tax Lawyer? Civil? Interesting point is spouse was non-working owner by DBA & SS# used of the company.