More Americans are receiving IRS notices in 2026 due to new income reporting systems, identity checks, and common tax filing errors. This guide explains why you may have received an IRS letter, what it means, and the simple steps you should take to respond and avoid penalties.

Many taxpayers rush to file before the April 15 deadline, but this often leads to costly mistakes. Learn why tax filing errors increase during tax season and how to avoid IRS delays and issues.