The difference can mean a quick paper dispute or a costly, invasive review that reaches deep into your finances. One usually stays limited to documents sent by mail or uploaded online. The other can put an auditor in your home, business, or accountant's office, asking broader questions and looking for patterns that increase taxes, penalties, and interest. Mixing them up is a common trap, especially when a notice looks routine but signals a much wider problem.

A correspondence audit is handled remotely. The tax agency - often the IRS, and sometimes the Utah State Tax Commission - asks for specific records to verify items on a return, such as income, deductions, credits, or filing status. A field audit is an in-person examination conducted where records are kept. It is more detailed, usually covers more issues, and often involves higher-dollar items, self-employment income, rental activity, or a business.

For an injury claim or financial recovery, the distinction matters because a field audit can consume time, disrupt operations, and expose records that affect settlement strategy, liens, or ability to pay. A correspondence audit may be easier to contain if the response is accurate and narrow. A field audit often requires tighter document control and professional representation so the review does not expand beyond the original issue. When a notice arrives, the safest move is to read exactly what years and records are requested before volunteering anything extra.