09/17/2026
SWEET'S TAX TIPS!!!
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IRS Nonfilers Face Penalties and Lost Refunds
The IRS is increasing its focus on nonfilers as the number of taxpayers with potentially unfiled tax returns continues to grow. A recent Treasury Inspector General for Tax Administration (TIGTA) report found that potential individual nonfilers increased from 8.8 million for tax year 2015 to 14.7 million for 2022. Nonfilers accounted for an estimated $63 billion, or 9%, of the projected $696 billion gross tax gap for 2022.
In 2024, the IRS began actively pursuing high-income nonfilers, but TIGTA found nearly 33,700 taxpayers remained in first notice status as of June 30, 2025, delaying further collection action. TIGTA estimated that advancing certain cases could result in approximately $321 million in potential additional tax due and made additional recommendations to the IRS to improve enforcement. Another 11,000 cases are awaiting further collection assignment, representing an estimated $90.8 million in potential additional tax.
Failing to file can have lasting consequences. The failure-to-file penalty is typically 5% of unpaid tax for each month or part of a month the return is late, up to 25%. More importantly, when you never file a required return, the normal three-year IRS assessment period doesn’t begin. There is no statute of limitations, which means the IRS can assess tax for the unfiled year at any time. The IRS plans to use analytics and artificial intelligence to identify potential nonfilers earlier while expanding outreach to encourage voluntary compliance.
TIGTA also reported that more than 1.3 million taxpayers did not claim an estimated $1.2 billion in refunds for the 2022 tax year. The deadline to claim a refund for the 2022 tax year was April 15, 2026.