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IRS Tax Relief · Updated May 2026

IRS Alert: $688 Billion in Taxes Went Unpaid by Americans in 2021 – Brace for More Audits.

IRS Alert: $688 Billion in Taxes Went Unpaid by Americans in 2021 - Brace for More Audits.
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Fresh Start Initiative
Fresh Start Initiative
America’s Tax Relief Network
Home Fresh Start Program IRS Notices Taxpayer Problems Articles About Check Your Eligibility
Call us directly (888) 665-4416
✓ Editorially independent Reviewed by licensed CPAs Read by 2M+ taxpayers in 2025 Updated monthly $1.2B+ in tax debt resolved 100,000+ Americans served Partner firms are BBB A+ rated only Licensed in all 50 states ✓ Editorially independent Reviewed by licensed CPAs Read by 2M+ taxpayers in 2025 Updated monthly $1.2B+ in tax debt resolved 100,000+ Americans served Partner firms are BBB A+ rated only Licensed in all 50 states
Tax Guide · Updated October 2023
IRS Alert: $688 Billion in Taxes Went Unpaid by Americans in 2021 – Brace for More Audits.

TL;DR: In a recent revelation, the IRS announced that Americans did not pay a staggering $688 billion in taxes for the year 2021. This IRS alert about this unprecedented amount marks a record in unpaid taxes. This guide explains who qualifies, the rules that apply, and how to apply them to your situation.


In a recent revelation, the IRS announced that Americans did not pay a staggering $688 billion in taxes for the year 2021. This IRS alert about this unprecedented amount marks a record in unpaid taxes. In response, the IRS is gearing up to enhance compliance measures, which include intensifying audits, especially targeting high-income individuals, businesses, and partnerships.

In a recent revelation, the IRS announced that Americans did not pay a staggering $688 billion in taxes for the year 2021. This unprecedented amount marks a record in unpaid taxes. In response, the IRS is gearing up to enhance compliance measures, which include intensifying audits, especially targeting high-income individuals, businesses, and partnerships.

This $688 billion figure is significant for another reason: it’s the inaugural instance of the IRS sharing data about the annual tax gap. The agency has committed to updating this data yearly. Alarmingly, this number has surged by over $138 billion when compared to the estimates from 2017 to 2019.

With the Inflation Reduction Act (IRA) infusing billions into its coffers, the IRS is now focusing its audit efforts on affluent taxpayers. The primary objective behind this move is to ensure that high earners fulfill their tax responsibilities. This strategy aims to bridge the tax gap and augment federal revenue, which will subsequently fund initiatives like the IRA’s ambitious $370 billion green energy projects.

IRS Commissioner Danny Werfel emphasized the gravity of the situation, stating, “The surge in the tax gap accentuates the need for the IRS to bolster its compliance measures in pivotal areas.” He further added, “Such measures are not just crucial but also instill fairness in the tax system, safeguard compliant taxpayers, and actively work towards narrowing the tax gap.”

However, households with an annual income below $400,000 can breathe a sigh of relief, as the IRS has confirmed that their audit rates will remain unchanged.

Understanding the Tax Gap

So, what exactly is the tax gap? As defined by the IRS, it’s the discrepancy between the projected taxes owed and the amount that’s actually remitted punctually.

This gap can be broken down into three primary categories:

  • Taxes that remain unfiled.
  • Taxes that are reported lower than the actual amount.
  • Taxes that are not paid in full.

It’s worth noting that a commendable 85% of taxes are paid both voluntarily and on schedule, as per the IRS.

Reasons Behind the Tax Underpayment

The phenomenon of non-filing arises when individuals delay or avoid filing their yearly tax returns, leading to taxes not being paid within the stipulated timeframe. Simpson & Simpson Accounting, a renowned accounting firm, sheds light on various reasons behind this. Some individuals, apprehensive about hefty tax debts, deliberately avoid filing. Others might be grappling with personal upheavals, such as familial deaths or divorces, causing them to fall behind. In 2021 alone, non-filing resulted in an unpaid tax amount of approximately $77 billion.

Underreporting, on the other hand, involves not declaring the entirety of one’s income. A classic example is individuals not reporting cash earnings in their annual returns, leading to a reduced tax liability than what’s actually due. This underreporting was responsible for a massive $542 billion of the tax gap in 2021.

Lastly, underpayment is when individuals declare their taxes but fail to pay the due amount within the deadline. This is common among freelancers or gig workers who might miscalculate their quarterly estimated taxes. It can also occur when individuals, despite owing the IRS, postpone their payments. This underpayment contributed to $68 billion of the tax gap in 2021.

If you have questions about your tax obligations or need assistance with tax-related issues, it’s essential to seek professional advice. Click here or call 888-665-4416 to get connected with a tax specialist who can help you with your IRS tax issues.

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Fresh Start Initiative is an independent editorial resource covering IRS tax debt relief. We do not provide tax advice or representation and are not affiliated with the IRS or any government agency. When you request a consultation, we connect you with a licensed, A+ BBB-rated tax relief firm from our vetted network — matched to your situation. Individual results vary.
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