When you enter your transactions into TurboTax, TurboTax will calculate the taxes on capital gains. It will then add the capital gains to your AGI. You do not need to do that manually.
Adjusted Gross Income (AGI) is defined as gross income minus adjustments to income. Gross income includes your wages, dividends, capital gains, business income, retirement distributions as well as other income. Adjustments to Income include such items as Educator expenses, Student loan interest, Alimony payments or contributions to a retirement account. Your AGI will never be more than your Gross Total Income on you return and in some cases may be lower.
