i noticed that in prior years form 8606 submissions, i included that years IRA contributions whether a Roth or simply a traditional non-deductible IRA. As a result the cumulative basis reported on form 8606 contains a blend of both. (All of my IRA contributions are not tax deductible). I suspect I need to file amended form 8606 for each year - yes? Do I also need to include a 1040 with my amended 8606?
