What are the hoops you think you have to jump through to get a subsidy? The way I understand it is that the exchange website where you shop for plans already has your 2013 income tax return's MAGI figure and will automatically present you with the subsidy based on that. You can tweak it if you predict your 2014 income will differ significantly, and when you file your 2014 tax return there will be a true up if you actual income is really different from the prediction your subsidy was based on.
Well, there's the marketplace application. Let's see the bounce rate on that baby. Then you need to file tax returns to get the tax credit. According to this link, 41% of the population does not file a tax return. I bet the percentage is higher among the uninsured, think about it. http://taxfoundation.org/article/number-americans-paying-zer...