The three polys. The classic symptoms of high blood glucose are polyuria, polydipsia, and polyphagia. In plain English, that means excessive urination, excessive thirst, and excessive hunger. Any doctor who hears this trio of complaints will reach for a blood glucose meter.
The Social Security component of the FICA tax is regressive, meaning the effective tax rate regresses (decreases) as income increases beyond the compensation limit. The Social Security component is a flat tax for wage levels under the Social Security Wage Base (see Regular employees above).
The amount of Social Security income which is taxable depends on your taxable income. Most high-income retirees will have 85% of Social Security benefits taxable. For lower-income retirees, less than 85% will be taxable, but many retirees in a 15% tax bracket will face a marginal tax rate much higher than 15%. Social security benefits are also taxable in some states (see Figure 1.)