You can add money any time you like (up to whatever the annual limit is for that year), just keep REALLY good records so that you don't end up paying taxes on that money...you can put up to $5,500 in an IRA for 2014, and ALL of that can come off the top of your "Adjusted Gross Income" when you file your Tax Return for 2014 in April 2015...
You can add to an IRA whenever you want as long
as you have an earned income and don't go over
the $5,500 investment limit per year.