If you want to make changes or add a document to a tax return that has already been filed and accepted by the taxing agency, you should follow these guidelines.
Select your product below and follow the instructions.
Some providers have their 1099-R forms as PDF documents that you download yourself from yoru own account at that provider.
Mine hasn't sent me 1099-R forms thru the mail for many years now...but I get them every year from my account...usually at the end of January.