Advanced Diploma of Financial Planning (ADFP) Practice Test

The correct percentage of Social Security benefits that may be taxable for high-income recipients is up to 85%. This taxation applies to individuals whose combined income exceeds certain thresholds. When a recipient's combined income—calculated as adjusted gross income plus non-taxable interest income plus half of their Social Security benefits—falls above specific levels, a portion of their Social Security benefits may be included in taxable income.

This approach recognizes that while Social Security is designed to provide financial support, high-income earners can contribute a portion of their benefits back to the federal government through taxation, reflecting their higher earning potential. The income thresholds for taxation are updated periodically, but the principle of taxing Social Security benefits for higher earners remains in place.

Options that suggest lower percentages do not reflect the taxation laws properly, and stating "None" disregards the fact that some benefits can indeed be taxed for high-income individuals.