Each year, the Internal Revenue Services receives over 3 billion information returns, such as W-2s and 1099-INTs, from employers, banks, and other entities. The IRS also collects some data about taxpayers from other government agencies and the private sector. But given budget cuts and data...
The “tax gap”—the difference between the amount of taxes owed and the amount of tax actually paid—includes substantial gray areas where the law is ambiguous and the IRS’s determination of taxes owed is debatable. Understanding the tax gap’s shades of gray can inform discussions of tax law and...
The American Rescue Plan Act of 2021 (ARP) temporarily increased the child tax credit (CTC), made the credit fully refundable, and authorized the IRS to issue up to half the credit as an advance monthly payment beginning in July 2021. The IRS reports that nearly 61 million children received the...
From 2010 through 2019, funding for the Internal Revenue Service (IRS) dropped by 24 percent, after adjustment for inflation. As a consequence, the percentage of taxpayers who were audited fell by nearly half. In this paper, we use confidential IRS data to compare the returns on investments (ROI...
This article reviews the 18-year tenure of the just-retired National Taxpayer Advocate, Nina Olson, and her successes and challenges in building the post into a key role in tax administration through casework, systemic advocacy, and detailed reports to Congress.
The Filer Voter experiment, conducted in 2018, assessed the effectiveness of conducting voter registration drives at Volunteer Income Tax Assistance (VITA) sites for lower-income households in Cleveland and Dallas. The Filer Voter program doubled the likelihood of unregistered voters registering...
Taxpayers routinely have too much income tax withheld. Of the 126 million tax returns the IRS processed through April 17, 2015, almost three-quarters resulted in a refund. The average refund was $2,711 with higher average refunds going to the earliest filers.
The Statistics of Income (SOI) Division of IRS prepares a publicly available file, the Public Use File, from its annual sample of income tax returns. The PUF is a critical data source for tax policy analysis. To insure taxpayer confidentiality, SOI applies disclosure avoidance procedures to the...
Errors in the formulas for computing payroll tax for the self-employed result in their paying less payroll taxes than workers with the same earnings. All self-employed workers benefit from these errors, but those with high earnings benefit disproportionately. A provision in Ways and Means...
This paper evaluates six options to achieve across-the-board reductions to a group of major exclusions and deductions in the income tax: (1) limiting their tax benefit to a maximum percentage of income, (2) imposing a fixed dollar cap, (3) reducing them by fixed-percentage amount, (4) limiting...
Machine Learning and Tax Enforcement
Each year, the Internal Revenue Services receives over 3 billion information returns, such as W-2s and 1099-INTs, from employers, banks, and other entities. The IRS also collects some data about taxpayers from other government agencies and the private sector. But given budget cuts and data...
The Tax Gap’s Many Shades of Gray (Brief)
The “tax gap”—the difference between the amount of taxes owed and the amount of tax actually paid—includes substantial gray areas where the law is ambiguous and the IRS’s determination of taxes owed is debatable. Understanding the tax gap’s shades of gray can inform discussions of tax law and...
Who Has Received Advance Child Tax Credit Payments, and How Were the Payments Used?
The American Rescue Plan Act of 2021 (ARP) temporarily increased the child tax credit (CTC), made the credit fully refundable, and authorized the IRS to issue up to half the credit as an advance monthly payment beginning in July 2021. The IRS reports that nearly 61 million children received the...
Effects of Recent Reductions in the Internal Revenue Service’s Appropriations on Returns on Investment
From 2010 through 2019, funding for the Internal Revenue Service (IRS) dropped by 24 percent, after adjustment for inflation. As a consequence, the percentage of taxpayers who were audited fell by nearly half. In this paper, we use confidential IRS data to compare the returns on investments (ROI...
The Inside Agitator
This article reviews the 18-year tenure of the just-retired National Taxpayer Advocate, Nina Olson, and her successes and challenges in building the post into a key role in tax administration through casework, systemic advocacy, and detailed reports to Congress.
The critical appreciation...
The Filer Voter Experiment: How Effective is Voter Registration at Tax Time?
The Filer Voter experiment, conducted in 2018, assessed the effectiveness of conducting voter registration drives at Volunteer Income Tax Assistance (VITA) sites for lower-income households in Cleveland and Dallas. The Filer Voter program doubled the likelihood of unregistered voters registering...
Most People Receive Refunds at Tax Time
Taxpayers routinely have too much income tax withheld. Of the 126 million tax returns the IRS processed through April 17, 2015, almost three-quarters resulted in a refund. The average refund was $2,711 with higher average refunds going to the earliest filers.
New Resources for Microdata-Based Tax Analysis
The Statistics of Income (SOI) Division of IRS prepares a publicly available file, the Public Use File, from its annual sample of income tax returns. The PUF is a critical data source for tax policy analysis. To insure taxpayer confidentiality, SOI applies disclosure avoidance procedures to the...
Costly Error in Payroll Tax Computation for the Self-Employed
Errors in the formulas for computing payroll tax for the self-employed result in their paying less payroll taxes than workers with the same earnings. All self-employed workers benefit from these errors, but those with high earnings benefit disproportionately. A provision in Ways and Means...
Evaluating Broad-Based Approaches for Limiting Tax Expenditures
This paper evaluates six options to achieve across-the-board reductions to a group of major exclusions and deductions in the income tax: (1) limiting their tax benefit to a maximum percentage of income, (2) imposing a fixed dollar cap, (3) reducing them by fixed-percentage amount, (4) limiting...