Your question is not clear.
Where do you see that "credit" - what form and line?
There is a SSA-1099 for Social Security and a 1099-R for retirement income, but no such form as a SSA 1099R.
Your are asking about tax year 2017? Are you just trying to file 2017 now?
View the "Tax Payments Worksheet" lines 10-18 to see where withholding came from.
**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.**
