In the US every Republican takes the Grover Norquist pledge to always make taxes as salient and as unpleasant as possible. The idea being that it will make voters more anti tax
If taxes were filed automatically, honestly, I'd pay no attention at all to them, but having to sit once a year an actually look at the amount I paid, does get me to think about taxes and what they go towards, at least a little.
Also, republics are “anti-tax” in word and pro-tax in practice, as is the American way. When it comes to particularly republicans, anti-tax is code for removing social safety nets. They want taxes if it pays them, or pays the right contractors, or funds the military etc but when those tax dollars could go to social welfare they suddenly think it’s time to trim the fat.