2007 Annual Report to Congress: The Most Serious Problems (MSPs) Encountered by Taxpayers
2007 ARC – MSP Topic #1 – THE IMPACT OF LATE-YEAR TAX-LAW CHANGES ON TAXPAYERS
Problem
In recent years, Congress has made significant changes to the tax code in December that apply to the current tax year
(e.g., the “extenders bill” in December 2006 and the Alternative Minimum Tax (AMT) “patch” in December 2007). The IRS
currently finalizes Form 1040 and its accompanying instructions in early November, and tax software companies finalize
their shrink-wrapped software packages around the same time. If Congress changes the law after those products have
been finalized, significant problems arise. Because of systemic limitations and to minimize taxpayer confusion, the IRS
generally does not update Form 1040 or its accompanying instructions after initial publication. As a result, taxpayers filing
paper returns are particularly likely to complete their returns without taking into account late-year changes. Taxpayers who
purchase shrink-wrapped software have the option of downloading a “patch” to update their software, but some taxpayers
do not do so. As a result, some taxpayers who prepare their returns electronically also do not take late-year changes into
account. In Tax Year 2006, Congress waited until after the Form 1040 package and shrink-wrapped tax software products
had been finalized to “extend” several popular tax deductions. Taxpayers ultimately claimed these deductions about 1.4
million times less frequently than in tax year 2005, when the deductions were included in the Form 1040 instructions and
built into all tax software. Thus, it appears that numerous taxpayers did not claim tax deductions to which they were
entitled simply because they did not know about them.
Late-year tax-law changes also place enormous stress on the IRS’s ability to deliver a successful filing season. The IRS
must develop updated forms, develop training materials for its telephone assistors and field assistance personnel, provide
instruction for Volunteer Income Tax Assistance (VITA) and Tax Counseling for the Elderly (TCE) sites and, most
significantly, write programming code that allows the IRS to accept returns and perform numerous automated reviews of
returns. The programming challenges are particularly time-consuming and have delayed the start of the filing season for
millions of taxpayers. Delays in the filing season can create severe hardships. The overwhelming majority of tax returns
(more than 100 million) result in refunds, and a delay in processing returns means a delay in issuing refunds to taxpayers,
including low income taxpayers who rely on tax refunds to pay essential bills. Among taxpayers claiming refunds and
receiving the Earned Income Tax Credit (EITC), the average refund equals 20 percent of their yearly income. To ensure
that members of Congress better understand the filing-season impact of late tax legislation, the National Taxpayer
Advocate recommends that the Treasury Department and the tax-writing committees create a formal process by which
IRS estimates of the filing-season impact of significant tax legislation are transmitted to the tax-writing committees at
several points during the year, perhaps on June 30, September 30, and monthly thereafter.
1