Common tax mistakes that can trigger IRS delays or penalties include filing too early without all documents, making simple math errors, using incorrect Social Security numbers, and choosing the wrong filing status. Other frequent mistakes are missing out on deductions or credits, failing to report all income (e.g., side gigs), and forgetting to sign the return.
Avoid These Common Tax Mistakes
The IRS uses a combination of automated and human processes to select which tax returns to audit. Not reporting all of your income is an easy-to-avoid red flag that can lead to an audit. Taking excessive business tax deductions and mixing business and personal expenses can lead to an audit.
20 Common Tax Deductions: Examples for Your Next Tax Return
Businesses that show losses are more likely to be audited, especially if the losses are recurring. The IRS might suspect that you must be making more money than you're reporting. Otherwise, why would you stay in business? Most likely to be audited are taxpayers reporting small business losses.
Here are 12 IRS audit triggers to be aware of:
The "20k rule" refers to the traditional IRS threshold for reporting income from payment apps and online marketplaces on Form 1099-K: over $20,000 in gross payments AND more than 200 transactions in a calendar year. While a law (the American Rescue Plan) temporarily lowered the threshold to $600, recent legislation, the One Big Beautiful Bill Act (OBBBA) (OBBBA), has reinstated the $20,000/200-transaction rule for tax years starting in 2025, providing relief for casual sellers and gig workers.
You generally need to file a U.S. federal tax return if your gross income for Tax Year 2025 (filed in 2026) is above a certain threshold, which varies by filing status and age, for instance, $15,750 for single filers under 65, while self-employed individuals must file if they earn $400 or more in net earnings. Thresholds increase for married couples and those 65 or older, but you might still need to file to claim a refund or refundable credits even if below the income limit.
Does Zelle Report Payments to the IRS: Form 1099-K Details. IRS Form 1099-K reports payments received for goods or services during the tax year from credit, debit, or stored value cards and TPSOs. The 2025 reporting threshold is $2,500 or more, which will be reduced to $600 in 2026.
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Common traps include taxes on Social Security benefits, Medicare surcharges, required minimum distributions (RMDs), real estate sales and estimated quarterly tax payments. With some knowledge, though, you can more effectively steer clear of these potential pitfalls.
The IRS "10k rule" primarily refers to the requirement for businesses and financial institutions to report cash transactions over $10,000 by filing Form 8300 (for businesses) or a Currency Transaction Report (CTR) (for banks), under the Bank Secrecy Act. This rule helps combat money laundering, tax evasion, and terrorist financing, requiring reporting for single transactions or related transactions totaling over $10,000 in cash within a year, with penalties for non-compliance.
Is the IRS Sending $3,000 Refunds in June 2025? There is no IRS statement that says taxpayers will receive $3,000 payments specifically in June 2025. Any June refunds would apply only to those filing late, filing amended returns, or receiving delayed refunds due to verification issues.
What Not to Say During an Audit?
Many business expenses are 100% deductible, including advertising, employee wages, rent, supplies, and certain business meals like company parties or meals for the public, while personal deductions like student loan interest or charitable donations (depending on the type) can also be fully deductible for individuals. The key is that the expense must be "ordinary and necessary" for your trade or business or meet specific IRS criteria, often differentiating from the 50% rule for client meals.
10 of the Largest Tax Breaks Explained