Tax rates have not changed on Social Security in decades . Seniors cannot afford to be taxed on their minuscule Social Security income. Any cost of living increase does not help it is eaten up by Medicare increases and exorbitant part D drug costs. Stand up for seniors now . For the 2021 tax year (which you will file in 2022), single filers with a combined income of $25,000 to $34,000 must pay income taxes on up to 50% of their Social Security benefits. If your combined income was more than $34,000, you will pay taxes on up to 85% of your Social Security