- Accounting methods
- Capital gain, ordinary income, the return of capital
- Charitable contributions
- Compensation
- Deferred compensation
- Employment taxes
- Excess compensation from publicly held corporations
- Restricted stock
- Stock options
- Deduction versus capital expense versus depreciation/amortization
- Independent contractor versus employee
- Individual and personal expenses
- Lawsuits
- Taxable and nontaxable damages
- Litigation costs
- Losses
- Bad debt—Business versus non-business
- Casualty
- Partnerships
- Partnership versus partners
- Allocation and distributions
- Profits interests
- Passive activity gains and losses
- Research and development
- Retirement plans, IRA’s
- S corporations
- Tangible property regulations
- Taxable versus non-taxable payments
- Timing of income—Constructive receipt, assignment of income
- U.S. international taxation
- Foreign tax credits
- Non-U.S. employees and wage withholding
- Passive income
- Subpart F
- Tax treaties