Final answer:
Tax services organized by topics like types of taxable income are known as specialized tax services. They provide tailored advice on various tax categories and their impact on income and tax compliance.
Step-by-step explanation:
Tax services that are arranged by topic, such as types of taxable income, are known as specialized tax services. These services provide detailed assistance and information tailored to specific areas of taxation. For example, understanding the various tax structures such as proportional, progressive, or regressive taxes, and their implications on income can be complex. Specialized tax services aim to elucidate these complexities by offering tailored advice on a range of topics including individual income tax, corporate taxes, property taxes, sales taxes, and more. They treat each category meticulously, providing insights into how each type of tax affects earnings and compliances.