Here are the most common math errors the IRS catches when people file their taxes

The IRS reports that it caught 2.3 million math errors on 1.7 million tax returns in 2014 (that's returns for tax year 2013). That actually seems pretty good, since the IRS received almost 250 million tax returns in 2014.

Most people calculated how much they owed wrong. Here's how those errors broke down:

Math errors IRS taxes

(IRS)

Here's the IRS databook for 2014.

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