There are quite a few important roles for tax returns; to calculate a taxpayer's tax responsibility, to schedule their payments, and of course, to request a refund if they’ve overpaid. All of this is essential to the taxation process. Income tax returns are simply a culmination of these factors, but solely based on the amount of money you’re bringing in, rather than anything else. Usually, you’ll need to submit your tax return to the IRS for review, as they will need to check your information and verify that it’s correct. If you’ve reported your taxes properly and paid the right amount, there should be no issue. If you calculated wrong however, you may end up owing more in taxes, or potentially less if you overstated.