<prompt> Human: Title pretty much says it - say I make a hundred thousand US a year, is there a percentage that I can donate to legit charities and get back in taxes?  <response>: No. But you may be able to reduce your taxes at your marginal rate. If you itemize your deductions you can deduct donations to charity. If you are in the 35 tax bracket you will reduce your taxes by 35 cents per dollar. If you dont itemize it doesnt make any difference. 