LG2 Describe the sources of gross income and adjustments to income, differentiate between
standard and itemized deductions and exemptions, and calculate taxable income.
Exhibit 3.1 gives the steps to compute taxable income and the related tax liability. It will be
good to go over these steps.
The three types of income discussed are important because of the limits the type of income
imposes. Portfolio income limits the amount of investment interest that may be deducted.
Passive income limits the loss deduction from businesses in which the investor has a passive
interest [that is the investor does not work in the business). All real estate investments are
passive interests with a small exception for middle income taxpayers that allows a loss deduction
of $25,000 if the investor participates in the managing of the real estate investment. Active
income is everything else.
Exhibit 3.2 reports the various alternative rates for capital gains. Key point is that the reduced
rates applies only to gains on sales of assets held more than 12 months, so called “long-term
gains”. The top capital rate is 20% and applies if the ordinary income tax rate is 39.6%. There
are two additional alternatives rates that apply in limited cases: 25% on part of gain from sale of
depreciable real estate, and 28% on gains from sale of collectibles such as artwork, ceramics,
stamps, etc. Note that these are alternative rates: if the ordinary tax rates are lower, use them.
The standard deduction varies by taxpayer’s age and filing status. Most common are the single
status which has a standard deduction of $6,200 in 2014 and $6,300 in 2015, and the married
filing joint status which has a standard deduction of $12,400 in 2014 and $12,600 in 2015. They
change every year as the Consumer Price Index changes. If the taxpayer’s itemized deductions
are greater, the Schedule A is filed and the itemized deductions deducted. The itemized
deductions tend to be greater if the taxpayer has state income taxes and mortgage interest on up
to two personal residences.
The personal exemptions deduction is $3,950 in 2014 and $4,000 in 2015. Thus, in 2014, a
single taxpayer will have no taxable income if their income is $10,150 ($6,200 + $3,950) or less.
LG3 Prepare a basic tax return using the appropriate tax forms and rate schedules.
All taxpayers may file a form 1040. For taxpayers with a limited source of income, there are
Forms 1040EZ and Form 1040A. These forms are simpler to file if filing by hand. With tax
preparation software, the software selects the form to file.
Exhibit 3.3 displays the 2014 tax rate in the form that is normally reported by the IRS. The 2015
rates are above. Exhibit 3.5 demonstrates the difference between a tax credit and a tax
deduction. The value of a tax deduction is the amount of the deduction times the marginal tax
rate. Thus, the value of standard deduction to a single taxpayer in the 25% marginal rate is 25%
* $6,200 or $1,550. The value of a tax credit is the amount of the credit, thus the value of a
$1,000 child tax credit to a 25% marginal rate taxpayer is $1,000.