Which of the following is NOT a component of the Truth in Lending requirements?

In the context of Truth in Lending (Regulation Z), the components that are required to be disclosed to borrowers specifically include the Annual Percentage Rate (APR), the total loan cost, and the finance charge. These disclosures are intended to provide consumers with clear and concise information about the cost of borrowing, enabling them to make informed decisions.

The APR reflects the true annual cost of borrowing, incorporating interest payments and certain fees, which gives consumers a standardized expression of the cost of credit over a year. The total loan cost aggregates all payments the borrower will make over the term of the loan, which is important for understanding the overall financial commitment. The finance charge indicates the total cost of credit, including interest and other charges.

In contrast, the borrower's income is not a necessary component to be disclosed under the Truth in Lending requirements. While a lender may consider a borrower's income when extending credit, this information is personal and not relevant to the core disclosures mandated by Regulation Z. Thus, the borrower's income stands apart from the other components focused on loan costs and terms, making it the correct choice for this question.