If you took certain actions in a prior year, you may now have additional taxes due on your 2011 tax return. Here are the details.
HOME BUYER CREDIT: If you bought a home in 2008 and took the first-time home buyer credit, you have another repayment installment due with your 2011 tax return. The 2008 tax credit was just an interest-free loan that you have to pay back over a 15-year period.
ROTH CONVERSIONS: If you converted a traditional IRA to a Roth IRA in 2010 and opted to split the tax due from the conversion between 2011 and 2012, your first half of the tax` is due on your 2011 tax return.