@violetroses67 you are commenting on a 2 year old post.
You must determine the taxable amount on a CSA 1099-R if box 2a does not have a dollar amount. If this is not the first year year you have received a pension, then you must use the same method that was used in 2017 - otherwise you use the box 2a amount (which makes it all taxable) or the simplified method if you have non-taxable basis in the pension. If not sure - contact the plan administrator.
**Disclaimer: This post is for discussion purposes only and is NOT tax advice. The author takes no responsibility for the accuracy of any information in this post.**
