Doing your tax return by yourself—even if you use tax preparation software—can still be a challenge.
We all know the tax code is complex and constantly changing. And that creates a great deal of anxiety and apprehension for some filers.
"They know they don't understand it and they're not sure they can handle it," said professor Nathan Oestreich, who teaches tax management at San Diego State University.
Things can get especially confusing when there are possible deductions or credits related to dependents, child care or education expenses.
(Read more: Most common tax surprises for same-sex couples)
"They all have different age requirements, so there are a lot of the questions related to that," explained Lisa Greene-Lewis, a CPA at TurboTax. "Also, people are hearing that if they support someone financially, they can claim that as a deduction, but there are a lot of different tests that they have to meet in order to do that."
Where's my refund?
The most common question for the IRS at this time of year is from taxpayers wanting to know the status of their refund. This is something you do online and not over the phone. Go to: Where's My Refund?
You can check within 24 hours after e-filing or four weeks after you mail in a paper return. The site is updated once a day. You'll need your Social Security number, filing status and exact amount of the refund claimed to track your return.
The IRS says most refunds are issued within 21 days of receiving the return. The quickest way to get your money is to file electronically and choose direct deposit, rather than having a refund check mailed to you. You can e-file for free, if you have an adjusted gross income of less than $58,000. Use the IRS Free File site.
(Read more: Cheat on taxes? Never!)
Less help available
Due to budget cuts, the IRS does not have enough people working its toll-free lines. IRS Commissioner John Koskinen told Congress recently that approximately 40 percent of the taxpayers who called during last year's filing season were unable to get through. Koskinen called that level of service "unacceptable," but said it was not likely to improve by much this year.
Chances are you can find what you're looking for on the IRS website. Start your search at 1040 Central. Also, many tax preparation services, including H&R Block, Jackson Hewitt and TurboTax, answer individual tax questions for free.
TurboTax provided CNBC with answers to some of the most common questions it's getting on its AnswerXchange website:
1.How do I know what tax forms I need to file my taxes?
More info on common tax forms and what you need to file is available here.
Other information you should have on hand when sitting down to do your taxes:
2.What tax deductions and credits are available for parents?
If you had a baby in 2013, you may receive a dependent exemption of $3,900, which reduces your taxable income by that amount (even if you had your baby on Dec. 31).
Other credits available for parents include:
Learn more about tax deductions and credits you can take if you have kids here.
3. I'm in college; can I deduct any of my school expenses?
To combat the ever-increasing price of college education, the tax code provides some relief via education tax credits and deductions. Education deductions and credits include:
Learn more about the tax benefits are available for college here.
4. Can I claim my girlfriend or boyfriend on my tax return?
Most people know they can claim a personal exemption for their children, but you might also be able to claim exemptions for elderly parents, significant others or other relatives that qualify as a dependent.
For each dependent you can deduct $3,900 from your federal taxable income.
Additional details about who qualifies as a dependent on your tax return are available here.
5. I didn't make very much money last year—should I still file my taxes?
You should file a 2013 federal income tax return even if your total income is below the filing requirement This way you can get a refund on any withheld federal income tax. The average unclaimed tax refund is more than $600.
"In most cases, refunds go unclaimed because taxpayers who don't meet the IRS requirement to file decide not to, therefore losing out on the tax refund to which they are entitled," Green-Lewis explained.
(Read more: 5 strategies to beat a small-business tax audit)
There is a three-year window on claiming past refunds. After that, the money goes to the U.S. Treasury. If you want to claim a refund from two or three years ago, you need to make sure all subsequent year's tax returns have been filed. Check out additional information here.