If you pay your taxes voluntarily (not just to stay out of jail)...why don't you pay more than the suggested amount?
If you pay without consent, have you ever looked up the definition of extortion?
extortion
/ɪkˈstɔːʃən/
noun
1.
the act of securing money, favours, etc by intimidation or violence
Above 99% of tax payers are unwillingly paying it.
And among the payers, above 99% are faking or try to fake their income.
Tax is a forceful social duty. If you want to do more it's better to do it personally for the sake of your name and for confirming you money is not being used in useless task.