18% across-the-board up to $99,999.99. Exceeding $100,000 a year should pay 20%. As always, if you make a certain amount of money at or below poverty level you should pay no taxes. At age 65 on your birthday tax rate should drop to 5% if total combined household income is less than $200,000 a year . If it's more than that, then it should drop ti 10%. For people who make more than $1 million a year, a 25% tax rate should apply.