Gross Income
Income from any source derived unless specifically excluded.
Adjusted Gross Income (AGI)
Gross income minus FOR AGI deductions.
Taxable Income
AGI minus itemized deductions or standard deduction and other deductions such as QBI.
Ordinary Income
Income taxed at normal tax bracket rates.
Examples of Ordinary Income
Wages, interest income, business income.
Preferential Income
Income taxed at special lower rates (0%, 15%, 20%).
Examples of Preferential Income
Long-term capital gains and qualified dividends.
Long-term Capital Gain
Gain on an asset held longer than 1 year.
Qualified Dividend
Dividend taxed at capital gain rates; stock must be held more than 60 days.
Capital Asset
Any asset except inventory, accounts receivable, or business-use assets.
Steps to Calculate Tax with Preferential Income
1) Separate ordinary and preferential income 2) Compute tax on ordinary income 3) Compute tax on preferential income 4) Add together.
Alternative Minimum Tax (AMT)
A separate tax calculation designed to ensure taxpayers pay a minimum level of tax.
Tentative Minimum Tax (TMT)
The tax calculated under AMT rules that is compared to the regular tax liability.
When AMT is Paid
If TMT is greater than the regular tax liability.
AMT Base
AMTI minus the AMT exemption.
AMTI (Alternative Minimum Taxable Income)
Taxable income adjusted for AMT preferences and adjustments.
AMT Exemption (Single/HOH)
88100
AMT Exemption (MFJ)
137000
AMT Phase-Out Rule
Exemption reduced by $0.25 for each $1 AMTI above threshold.
AMT Tax Rates
26% on first $239,100 of AMT base and 28% on excess.
Net Investment Income Tax (NIIT)
Additional tax on investment income for high-income taxpayers.
NIIT Rate
3.8%.
NIIT Calculation
3.8% × lesser of net investment income or excess AGI above threshold.
NIIT Threshold (Single/HOH)
200000