Chapter 4 Individual Income Tax Overview, Dependents, and Filing Status
Individual Income Tax Formula
- Individuals report taxable income to the IRS using Form 1040.
- U.S. tax laws use the all-inclusive income concept.
- Realized income: Measurable change in property rights.
- All realized income is included in gross income unless expressly excluded or deferred.
- Recognized income: Reported on tax return.
- Formula:
- Gross income
- Minus: For AGI (above the line) deductions
- Equals: Adjusted gross income (AGI)
- Minus: From AGI (below the line) deductions:
- Greater of (a) Standard deduction or (b) Itemized deductions and
- Deduction for qualified business income
- Equals: Taxable income
- Taxable income
- Times: Tax rates
- Equals: Income tax liability
- Plus: Other taxes
- Equals: Total tax
- Minus: Credits
- Minus: Prepayments
- Equals: Taxes due or (refund)
Excluded and Deferred Income
- Excluded and deferred income are not included in gross income.
- Excluded income
- Income never included in taxable income.
- Examples: Municipal bond interest and Gain on sale of personal residence.
- Income never included in taxable income.
- Deferred income
- Income included in a subsequent tax year.
- Examples: Installment sales and Like-kind exchanges.
- Income included in a subsequent tax year.
Character of Income or Loss
- Determines rates applicable to income or loss in current year.
- Tax-exempt: No tax.
- Tax-deferred: No tax in current year (current-year tax rate is zero).
- Ordinary: Ordinary rates from tax rate schedule.
- Qualified dividends: Taxed at 0 percent, 15 percent, or 20 percent depending on taxpayer’s income level.
Capital Gains and Losses
- Capital gain or loss depends on whether it is short-term or long-term.
- Results from selling a capital asset.
- If a capital asset is held for more than a year, the gain or loss is long-term; otherwise, it is short-term.
- Net long-term gains in excess of short-term capital losses, if any, are called “net capital gains” and are taxed at rates lower than rates on ordinary income.
- Capital assets
- Generally, all assets except:
- Accounts receivable
- Inventory
- Assets used in trade or business, including supplies
- Generally, all assets except:
- Capital gains and losses
- Net long-term capital gains in excess of net short-term capital losses are generally taxed at 0 percent, 15 percent, or 20 percent depending on the taxpayer’s taxable income.
- Short-term capital gains are taxed at ordinary rates.
- Net capital losses (losses in excess of gains for year)
- deductible against ordinary income for the year (reduce AGI).
- Losses over are carried forward indefinitely.
Netting Capital Gains/Losses
- Net short-term gains/losses.
- Net long-term gains/losses.
- If net short-term and net long-term have the same sign (both negative or both positive), stop.
- If net short-term and net long-term have different signs (one positive and one negative), net them together.
- Capital loss can reduce ordinary income by .
Example of Netting Capital Gains/Losses
- Short term-gain or
- Short term-loss
- Long term-gain
- Long term-loss or
- Long term-loss
- Deduct against ordinary income
- Carryover
Deductions for AGI
- “Deductions above the line.”
- Deducted in determining adjusted gross income.
- Always reduce taxable income dollar for dollar.
- Common for AGI deductions:
- Alimony paid (pre-2019 divorce decree)
- Rental and royalty expenses
- Contributions to qualified retirement accounts
Deductions from AGI
- Deducted from adjusted gross income to determine taxable income.
- “Deductions below the line.”
- Greater of the standard deduction or itemized deductions.
- Common itemized deductions (Schedule A):
- Mortgage interest
- State income taxes
- Charitable contributions
- Deduction for qualified business income (not an itemized deduction).
- Deduction = Qualified business income × 20%
2024 Standard Deduction Amounts
- Married filing jointly:
- Qualifying surviving spouse:
- Married filing separately:
- Head of household:
- Single:
Tax Calculation
- The United States uses a progressive tax rate schedule.
- Rates range from 10 percent to 37 percent.
- Some items are taxed at preferential rates, such as net capital gains and qualified dividends.
- Tax on these items is calculated separately from income taxed at ordinary rates.
Tax Prepayments
- Pay-as-you-go system.
- Payments already made toward tax liability, including:
- Income taxes withheld from wages by the employer.
- Estimated tax payments made during the year.
- Taxes overpaid in the prior year and applied toward the current year’s liability.
- If prepayments exceed tax liability after credits, the taxpayer receives a refund.
Filing Status
- Married filing jointly
- Must be married on the last day of the year.
- If one spouse dies, the surviving spouse is considered to be married to the decedent spouse at year-end, unless the surviving spouse remarries before year’s end.
- Joint and several liability for tax.
- Married filing separately
- Taxpayers are married but file separate returns.
- Typically not beneficial from a tax perspective due to tax rates and other tax benefits.
- May be beneficial for non-tax reasons.
- No joint and several liability.
- Married individuals treated as unmarried (abandoned spouse) if the individual:
- Is married at the end of the year (or is not legally separated from the other spouse).
- Does not file a joint tax return with the other spouse.
- Pays > 1/2 the cost of maintaining a household that serves as the principal abode for a qualifying child for more than half the year.
- Lived apart from the other spouse for the last six months of the year (other than temporary absences).
- Qualifying surviving spouse
- Available for the two years following the year of the spouse’s death.
- The surviving spouse does not qualify if he or she remarries during the two-year period.
- The surviving spouse must maintain a household for a dependent child.
- Single
- Unmarried unless qualifying for head of household.
- Head of household
- Unmarried or considered unmarried at the end of the year.
- Not a qualifying surviving spouse.
- Pays more than half the costs of keeping up a home during the year.
- Lived in the taxpayer’s home with a “qualifying person” for more than half of the year (exception for parents).