aparch
Acetaminamerican
It'll be curious to see how that would work. Especially for drivers who cross state lines frequently. Or infrequently for that matter. I suppose it would be no different than income taxes. Report how much time you spent in the various states just like income.
Eh. We've got time
Some states are kicking around mileage based taxes in lieu of gas taxes. I believe Oregon and Colorado have pilot programs and Illinois floated the idea before it got shot down faster than a frat boy in Wigleyville.
If I remember correctly, all the plans adopted a flat "here's the yearly fee, unless you can prove with receipts and mileage that you didn't travel that far," with some trialing a GPS for exact mileage and use.
Interstate travel will be the second biggest hangup, not that people didn't buy gas in cheaper states if they lived nearby already. The first biggest trick will be getting people to accept having GPS tattle-tales that log their mileage.
Realistically, raising the yearly license plate registration fees will likely be the first step. ICE vehicles could become 400, 500, or more per year. Electric would follow suit (with a slight "savings" for those who adopt Electric over ICE).
But then we'll hear foul from those who feel that a yearly "tax" on the poor is over the incremental costs that the current fuel tax is.
Maybe we just need to go to a quarterly or monthly payment plan for vehicles?