Dolans' Dirty Dozen: The twelve most common taxpayer mistakes

Ken and Daria Dolan are widely known as America's First Family of Personal Finance.

Here's a little tax trivia for you...

How many pages long is the United States Tax Code? If you guessed 18,500, you win the prize. It's no wonder that so many of us make mistakes when filing our federal income tax forms.

A mistake or two on your tax return can bring you unnecessary stress, delay your refund and subject you to more pesky paperwork -- or worse yet, an appointment with an IRS agent to fix the problem.

But here's the good news... The most common taxpayer mistakes are, for the most part, very simple to avoid once you know to watch out for them. So let's look at the Dolans' Dirty Dozen. Here are 12 common taxpayer mistakes you can easily avoid: