Start with gross income
Add all taxable wages, salaries, bonuses, tips, interest, dividends, business income, rental income, and other taxable sources
Subtract allowable business expenses if self-employed
Subtract above-the-line deductions
Calculate adjusted gross income
Subtract standard deduction or itemized deductions
Subtract qualified business income deduction if eligible
Subtract personal exemptions if applicable in your tax system
Result is taxable income