Millions in Refunds Left Unclaimed as Taxpayers Overlook Key Federal Credit

Nearly 20% of eligible taxpayers fail to claim the EITC which can boost refunds by up to $8,046 for families with three or more children in 2026.

By: AXL Media

Published: Mar 9, 2026, 7:44 AM EDT

Source: CNBC

Navigating Complex Eligibility Requirements and Income Thresholds

The primary barrier to higher participation rates is the intricate nature of the eligibility rules. National Taxpayer Advocate Erin Collins highlighted in her 2026 recommendations to Congress that the requirements are notoriously difficult for the average person to navigate. Eligibility is a moving target determined by a combination of total earnings, tax filing status, and the specific number of qualifying children in a household.

For the current tax season, the Adjusted Gross Income (AGI) limits are precisely defined. Single filers without children are capped at an income of $19,104 to qualify, whereas the limit jumps to $61,555 for those with three or more children. Married couples filing jointly see higher ceilings, ranging from $26,214 for childless households to $68,675 for larger families. These tiered limits are designed to phase out the credit as income rises, but they often result in "erroneous claims" or eligible workers opting out due to confusion.

The Impact on Refund Timing and Seasonal Statistics

Taxpayers claiming the EITC often experience a delay in receiving their funds due to federal law. The PATH Act requires the IRS to hold all refunds that include the EITC or the Additional Child Tax Credit (ACTC) until at least February 15. This measure is intended to provide the agency with more time to detect and prevent fraudulent claims. Consequently, the average refund amounts reported early in the tax season typically appear lower until these major credits are processed.

The IRS anticipates a significant spike in average refund sizes following the release of data in late February. As millions of EITC payments are cleared and sent to bank accounts, the overall financial picture for the filing season changes dramatically. For many lower-income earners who do not usually benefit from nonrefundable credits—which only reduce tax liability—the EITC represents the single largest payment they receive from the government all year.