IRS Audit Rates and What Triggers an Examination

Taxperts advisor discussing financial reports with a client at a conference table
Audit fear tends to outrun audit reality. Overall examination rates for individual returns are generally low in any given year, and the vast majority of taxpayers who report income accurately and keep reasonable records never hear from the IRS beyond a routine notice. That said, certain patterns reliably draw more attention than others.

How Common Are Audits, Really

IRS audit rates vary by year depending on funding and staffing, and they are not evenly distributed — very low for most individual filers, and meaningfully higher for very high incomes and certain business structures. Rather than quote a specific percentage that will be outdated within a year or two, the safer takeaway is directional: audit risk rises with income complexity, cash-intensive business activity, and the size of deductions relative to reported income.

Common Red Flags

A few patterns show up disproportionately in examinations: recurring, large losses on Schedule C — especially in activities that could be viewed as a hobby rather than a business; deductions that are unusually large relative to reported income; income that doesn't match the 1099s and W-2s the IRS already has on file, which its automated underreporter program flags almost automatically; cryptocurrency transactions, an area of increasing IRS focus; and claims for the Earned Income Tax Credit, which has historically carried a higher audit rate due to a higher rate of filing errors. None of these guarantee an audit, and none of them are reasons to avoid a legitimate deduction — they're reasons to document it well.

Correspondence Audits vs. Field Audits

Most audits are correspondence audits — handled entirely by mail, usually focused on one or two specific items like a questioned deduction or a mismatched income figure. Field audits are far less common and more involved: an IRS agent reviews the return in person, often at the taxpayer's home, business, or a representative's office, and the scope tends to be broader — common for complex business returns rather than simple wage-earner filings.

What Actually Protects You

The single best defense in any audit, correspondence or field, is documentation: receipts, mileage logs, bank and credit card records, and a clear paper trail connecting each deduction to a legitimate business or tax purpose. The second-best defense is representation — a CPA or Enrolled Agent can respond to IRS correspondence, attend a field audit on your behalf under a power of attorney, and make sure the conversation stays focused on the actual issue rather than expanding into something bigger.

An audit notice is stressful, but a well-documented return with professional representation behind it usually resolves cleanly. Book a free consultation with a Taxperts CPA or EA if you've received an IRS notice — or want a return reviewed before you file it.
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