THE BEST SIDE OF LOW INCOME

My spouse & I will both of those be turning 70 in 2024, so We are going to start having social security. I know that eighty five% will be taxable & that we could specify as many as 22% be withheld for federal tax. So how is this done? Is just 85% of the every month check taxed at 22% or is the entire regular total taxed? I hold a spreadsheet of qua