Infographic: 2019 Taxes by the Numbers Full Size Version Share | Have A Question About This Topic? Name Email Address Message Thank you! Oops! Related Content How Income Taxes Work A quick look at how federal income taxes work. What If You Get Audited? The chances of an IRS audit aren't that high. And being audited does not necessarily imply that the IRS suspects wrongdoing. Red Flags for Tax Auditors Here are six flags that may make your tax return prime for an IRS audit.