Which of the following types of income will not require additional information to qualify the borrower?

Salary is considered a stable and consistent form of income that does not typically require additional documentation to qualify a borrower. It is usually verified through straightforward means, such as pay stubs or W-2 forms, which clearly demonstrate the borrower's regular earnings. Lenders generally have established guidelines for evaluating salary income, making it a straightforward category for qualification purposes.

Other types of income, such as alimony, disability, and unemployment, often have additional requirements. For instance, alimony may require proof of continuation, including a divorce decree, while disability income may necessitate documentation from the payer or evidence of ongoing benefits. Unemployment income might also require verification of the duration and amount, making these categories more complex and subject to additional scrutiny. This is why salary stands out as the type of income needing the least additional information for borrower qualification.