When it comes to doing your taxes, it’s natural to feel stressed out. Although most people can breathe a sigh of relief after filing their annual returns, tens of millions of taxpayers face a variety of tax problems that extend the stress every year. Table of Contents 1. Tax Penalties 2. Unpaid Taxes 3. Math Error Notices 4. Non-Filers 5. Tax-Related Identity Theft 6. Underreported Income 7. Tax Audits