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A variety of tax breaks are due to expire at the end of 2012 (or have already expired at the end of 2011) unless Congress and the Obama administration manage to agree on a deal to extend the current tax rates and avert the fiscal cliff. Approximately 60 tax provisions expired at the end of 2011, according to Congress's Joint Committee on Taxation, and another 41 are scheduled to expire at the end of 2012.Here's a sampling of some of the most notable tax breaks, according to reports by the Congressional Research Service and the JCT.

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