The irasepsimple box is checked on my copy of the 1099r. What is the X in that box for?

[JTJAX1]

There is an X in the IRA/SIMPLE box on form 199-R.  What is that for?

[Coleen3]

That indicates that it is an IRA and not any form of pension. There ares some differences on how the distributions can be treated.