This document discusses different types of gross income and where to find them. It lists various sources of income including wages from a W-2, interest from bank accounts, dividends from brokerage accounts, capital gains from stock sales reported on a 1099-B, rental income on Schedule E, partnership or S corp income on a K-1, retirement distributions on a 1099-R, and other miscellaneous income sources. The document provides guidance on estimating income from these sources to calculate total gross income for tax reporting purposes.