Tax extenders are a group of fifty tax breaks that apply not only to small businesses but teachers and individuals as well. What you need to be concerned with are those that apply directly to small businesses. While these tax breaks are temporary in nature, they can have a serious impact on how you conduct your business for the next year.
In 2013, these tax breaks actually expired on December 31st, but the United States Congress retroactively extended the tax breaks into 2014. They typically do this at the last moment of the year, or right after the first of the new year, making it difficult for small businesses to plan ahead. These tax breaks are also only renewed for one year meaning they will have need to extend them again before the end of 2014, so they can carry over into 2015.