Spending extra time on your tax return may not be your idea of fun, but making sure you're claiming all the deductions you qualify for can be worth the hassle. While some of these apply to people across the income spectrum, many of the overlooked credits and deductions are for those in the lower income brackets.

Here are some often-overlooked deductions, according by H&R Block, which could save you a pretty penny.

Also: 18 tax changes to know about