Roughly one year after Congress approved , the agency has unveiled plans to crack down on tax preparers with "questionable practices." The news comes amid of a popular small business tax credit.

"We are devoting more resources to addressing unscrupulous preparers who are leading their customers to underreport income or overclaim credits and deductions," IRS Commissioner Danny Werfel said in sent on Monday to Senate Finance Committee Chair Ron Wyden, D-Ore.

Tax experts say these preparers create issues for filers who may later face an or future tax liability. They also cause problems for "good tax preparers" who face pushback from clients for following the rules, said Josh Youngblood, an enrolled agent and owner of The Youngblood Group, a Dallas-based tax firm.

"I think it's something that [the IRS] definitely needs to make a high priority," he added.

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The plan is part of the agency's elevated focus on claims, according to April Walker, lead manager for tax practice and ethics with the American Institute of CPAs.

A pandemic-era tax break, the employee retention credit, or ERC, was designed to support small businesses that kept employees on payroll during shutdowns or revenue declines in 2020 and 2021.

Worth thousands per employee, the program sparked a pushing businesses to amend payroll returns to claim the complicated tax break.

Roughly one week ago, the IRS announced plans to for the popular credit amid a "surge of questionable claims," a move that the . The processing pause for new claims will last at least through the end of 2023.

Meanwhile, the agency has also announced plans to reduce the number of audits on lower-income filers, while from higher earners, partnerships and large corporations.

In the same letter, Werfel shared IRS plans to of so-called correspondence , or exams conducted by mail, for certain credits. He included the , a tax break claimed by low- to moderate-income filers, which has been prone to mistakes due to complex eligibility requirements.

"It's long been recognized that correspondence audits have a lot of problems," said Chuck Marr, vice president for federal tax policy at the Center on Budget and Policy Priorities, noting that many filers don't receive or understand the notices.

During fiscal year 2020, more than $16 billion of the credit was claimed improperly — over one-quarter of the total paid — according to the National Taxpayer Advocate's to Congress.

While IRS audit rates have dropped overall, the rates have declined more slowly for filers claiming the earned income tax credit . "The IRS audits a higher percentage of taxpayers with the earned income tax credit than any other taxpayers, except those with at least $5 million of total positive income," National Taxpayer Advocate Erin Collins wrote in her 2022 report.

The agency's research suggests "bad actors" may disproportionally file tax returns for "vulnerable filers," such as lower earners, filers of color or those with limited English proficiency, according to Werfel's letter. He said this may contribute to for these filers.

The IRS in May said Black Americans are significantly , confirming by economists from Stanford University, the University of Michigan, the U.S. Department of the Treasury and the University of Chicago.

"Over time, we believe stepped-up efforts to stop unscrupulous preparers that target this population, will lead to higher quality tax preparation and increased return accuracy, thereby reducing the number of individual taxpayers at risk of audit," Werfel wrote.