It's common for taxpayers to mistakenly claim deductions or credits that they don't qualify for or to miss out on these same tax breaks when they do qualify for them.
The credits that are most often abused (or neglected): the Earned Income Tax Credit, the Child and Dependent Care Credit and the standard deduction, according to the IRS.
"With the ever increasing complexity of the tax code, it's no wonder we continue to see errors in credits or deductions," said Molina.
If you're filing solo, make sure to read the instructions carefully to ensure you qualify for a given credit. Otherwise, tax software should help you determine which credits you can and can't claim.