The IRS held $1 billion in unclaimed refunds for those who didn’t file tax returns in 2011 alone. Mistakes can delay your refund, increase tax bill or give back smaller refund. Kiplinger describes 9 costly mistakes taxpayers make so you can smartly avoid. they include having too much tax withheld, missing deadline to file, making common math errors, using the wrong filling status, entering the wrong bank account for direct deposit, and failing to report all incomes. (kiplinger.com)
