The Internal Revenue Service, or IRS, is the governing authority that processes tax returns filed by individuals and businesses and issues refunds. The IRS has issued sizeable refunds worth thousands of dollars in recent years. Individuals can use the money to meet daily expenses and pay pending bills. But to be eligible for prompt refunds, here are some common mistakes you should avoid while filing your tax returns this year. Updating the wrong filing status The IRS lets you file as a single taxpayer, a married taxpayer filing jointly/separately, a qualifying widow/widower, or a sole head of the household. Entering this information correctly is critical while updating the return. Filing under the wrong section can delay processing and refunds. You might even be subject to penalties if there are errors in the calculation. Not reporting all taxable income Salaried employees working for an organization should properly mention any income subject to taxes on Form W-2. Freelancers can report their income using Form 1099. Different kinds of employment and earnings are subject to different tax slabs. The bottom line is that you should never underreport your earned income in the said financial year. If the IRS notes discrepancies, it can order an audit that will lead to subsequent penalties and interest.