![Chevrolet Bolt EV being charged outside Go Forth electric-car showroom, Portland [photo: Forth]](https://images.hgmsites.net/tmb/chevrolet-bolt-ev-being-charged-outside-go-forth-electric-car-showroom-portland-photo-forth_100606247_t.gif)
In less than three months, personal income-tax returns or 2017 will be due for most U.S. adults. Some of those taxpayers will have bought a plug-in electric car last year, knowing that the Federal government offers an income-tax credit to help reduce the effective cost. But as more and more electric cars hit the roads, will electric-car shoppers...