Common Tax Errors for Self-Filers Identified by AI: Key Mistakes and Fixes

A review of AI-generated insights highlights recurring mistakes made by individuals filing their own taxes, emphasizing the need for greater accuracy in tax preparation. Among the most common errors are misreporting income, claiming ineligible deductions, and failing to account for tax credits such as the Earned Income Tax Credit (EITC) or Child Tax Credit (CTC). The analysis identifies that nearly 30% of self-filers incorrectly calculate their Adjusted Gross Income (AGI), primarily due to misclassifying investment income or failing to report freelance earnings. Additionally, over 25% omit state and local tax (SALT) deductions they are entitled to, while more than 15% claim deductions without proper documentation. These mistakes often lead to IRS notices and potential audits. Specific figures show that the average self-filer misses out on $1,200 in refunds annually due to these errors, with higher-income earners more likely to underreport capital gains. For instance, investors in stocks like Apple (AAPL) may overlook the tax implications of short-term gains, while energy sector participants tracking crude oil (CL=F) might fail to account for depletion allowances. The impact extends beyond individual filers—tax preparers report increased demand for assistance during peak filing season, and the IRS notes a 14% rise in correction notices since 2023. Market indicators such as the CBOE Volatility Index (^VIX) remain unaffected, as the issue is not macroeconomic but procedural.