GnuCash accounting software allows small businesses to track finances. It includes features to record income from sales, expenses from costs, assets owned, and equity from capital invested. The software provides customizable accounts to classify income by product or stream. It facilitates entering individual product codes, names, and descriptions. GnuCash also tracks company assets like bank balances and generates financial reports like cash flow, profit and loss, and balance sheets on a daily, monthly, or weekly basis.