If you want the Halacha in detail go read up about it... the bottom line is ( and i have heard this from a number of dayanim ) if you speed you are braking the law but you are not chaiv a chatas ( nor are you committing a chilul Hashem but thats another misconception for another day) The only taxes that is required is a property tax from a king whom owns the land and a tax that is based on the head count of a specific community so that if you abstain from paying it makes other jews ( / ppl not sure) having to pay more. taxes in the US doesnt fall under either category