For those of you (here in the US) who receive a monthly social security payment, have any of you chosen to withhold federal income tax on those payments?
The voluntary withholding request form W-4V from the IRS gives 4 choices: 7%, 10%, 12%, 22%
This step is highly recommended by tax experts if you receive social security every month and still work full-time and have any other taxable income besides social security.