Almost half of the unpaid taxes owed by current and retired federal employees are owed by retired military. Most often, this is simply because these retirees don't have a complete understanding of their tax obligations.
For this reason, the Armed Forces Tax Council and the Internal Revenue Service produced a 13 minute information video outlining steps you can take to ensure you don't end up having a large tax bill after you leave the service.
Highlighted in this short video are instructions for using the IRS online Withholding Calculator -- a valuable tool you can use to project the amount of taxes you owe and allow for the correct amount to be withheld from your wages during the year.
Once you know the story, the rest is easy!