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REGJanuary 8, 2025

CPA REG: Individual Tax Filing Status Explained

Master the five individual tax filing statuses for the CPA REG exam, including requirements, standard deductions, and tax bracket implications under current IRC provisions.

Individual Tax Filing Status: A CPA REG Exam Guide

Filing status is one of the most fundamental concepts tested on the CPA REG exam. It determines the applicable tax rates, standard deduction amounts, eligibility for certain credits and deductions, and phase-out thresholds. Under IRC Section 1, there are five distinct filing statuses, each with specific qualification criteria that candidates must understand thoroughly.

Single Filing Status

A taxpayer qualifies as single if, on the last day of the tax year, they are unmarried, legally separated under a decree of divorce or separate maintenance, or widowed before the beginning of the tax year and have not remarried. This is the default filing status when no other status applies. Single filers receive the lowest standard deduction amount and face narrower tax brackets compared to most other filing statuses.

For the REG exam, remember that marital status is determined as of December 31 of the tax year. If a taxpayer obtains a final divorce decree on December 31, they are considered unmarried for the entire year and must file as single (or head of household if they qualify).

Married Filing Jointly (MFJ)

Married filing jointly is available to taxpayers who are legally married on the last day of the tax year. Both spouses report their combined income, deductions, and credits on a single return. MFJ generally provides the most favorable tax rates and the highest standard deduction. Under IRC Section 6013, if one spouse dies during the tax year, the surviving spouse may still file a joint return for that year.

Key exam points include that both spouses are jointly and severally liable for the entire tax due on a joint return. This means the IRS can collect the full amount from either spouse, regardless of who earned the income. The innocent spouse provisions under IRC Section 6015 may provide relief in certain circumstances, which is another commonly tested area.

Married Filing Separately (MFS)

Married taxpayers may elect to file separately, reporting only their own income and claiming only their own deductions. While this status rarely provides a tax benefit, it may be advantageous in specific situations, such as when one spouse has significant medical expenses (which are subject to the 7.5% AGI floor) or when spouses want to separate their tax liabilities.

Important limitations for MFS filers that appear on the exam include: the earned income credit is not available, the child and dependent care credit is generally not available, the student loan interest deduction is disallowed, Roth IRA contribution eligibility is severely restricted, and the standard deduction is exactly half that of MFJ. If one MFS spouse itemizes deductions, the other spouse must also itemize.

Head of Household (HOH)

Head of household status offers tax rates and a standard deduction that fall between single and MFJ. To qualify under IRC Section 2(b), a taxpayer must meet three requirements: be unmarried or considered unmarried on the last day of the tax year, have paid more than half the cost of maintaining a home for the year, and have a qualifying person who lived in the home for more than half the year.

The qualifying person is typically a dependent child or a dependent parent. A notable exception is that a dependent parent does not need to live with the taxpayer, but the taxpayer must pay more than half the cost of maintaining the parent's separate household. A married individual may be considered unmarried for HOH purposes if they lived apart from their spouse for the last six months of the tax year and maintained a home for a dependent child.

Qualifying Surviving Spouse

Formerly known as qualifying widow(er), this status allows a surviving spouse to use the MFJ tax rates and standard deduction for two years following the year of the spouse's death. To qualify, the surviving spouse must not have remarried, must have a dependent child (son, daughter, or stepchild) who lived in the home all year, and must have paid more than half the cost of maintaining the household.

The timeline is critical for the exam. In the year of death, the surviving spouse files a joint return. For the next two tax years, the surviving spouse may use the qualifying surviving spouse status. After that, the taxpayer must file as single or head of household.

Standard Deduction Amounts and Exam Strategy

The standard deduction varies by filing status and is adjusted annually for inflation. Additional standard deduction amounts are available for taxpayers who are age 65 or older or blind. The additional amount differs depending on whether the taxpayer is married or unmarried, with unmarried taxpayers receiving a larger additional amount.

For the REG exam, focus on the hierarchy of filing status selection, the specific requirements for each status, and the implications for deductions and credits. Pay particular attention to scenarios involving changes in marital status during the year, the treatment of dependents across multiple potential filers, and the interplay between filing status and phase-out provisions for various tax benefits.

Common Exam Traps

  • A taxpayer who is legally separated under a decree of divorce on December 31 is considered unmarried for the entire year
  • An annulled marriage means both taxpayers must file amended returns as unmarried for all open years of the marriage
  • Nonresident aliens married to U.S. citizens may elect to file jointly under IRC Section 6013(g), but worldwide income of both spouses must be reported
  • The abandoned spouse rule allows a married individual to file as HOH without obtaining a divorce

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