The tax that was withheld was only an estimate --- just like when you had tax withheld from your paychecks and it went on a W-2. When your retirement income is combined with all of your other income--from whatever other sources-- your total income and total amount of withholdings are used to calculate whether you get a refund or owe additional tax.
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
