The traditional way to calculate your adjusted gross income is by looking at your bank statements for any payment you received during the tax year, including W-2 wages, salaries,tips,
self-employment income, interest and any other income sources. Added together, these are your gross income.
Your gross income calculation can also include investments,
interest, dividends and capital gains from real estate or
cryptocurrencies. Rent income is also considered part of your gross income, as is any income from a trust or estate.
You now can use income adjustments to lower your gross income and arrive at your adjusted gross income. An adjustment is different from a deduction in that the IRS allows any individual taxpayer to use adjustments to lower their gross income, while business deductions can be taken only by self-employed people to lower their taxable income.
The IRS considers
business deductions to be expenses that are ordinary for your line of work and are required to carry out your job. For example, a camera can be a necessary deduction if you are a freelance
photographer.
Other business expenses include part of the rent if you work from home, essential supplies necessary for your trade, employee wages and part of the
SECA (Self-employment Contributions Act) tax for self-employed individuals. You can also deduct charitable donations and
home office expenses.
You can only factor in business deductions after calculating your AGI.