Thank you for your response. I am actually just inquiring on income tax return eligibility to use IRWE deductions, but I think you're sort of confirming my understanding, which is that these deductions on income tax returns are only possible if, and only if, I also receive benefits from SSA. Since I do not, I suspect I cannot claim any IRWE deductions on my income taxes. It's not very intuitive, because one can have a disability but work without any form of disability assistance.
