We used to use client certificates to declare and pay our taxes online in France, about a decade ago.
They dropped the technology because no one savvy enough used the same computer long enough to be able to benefit from the feature more than a couple times. And you were still required to enter codes to match your forms with the administration's data, so it felt a bit useless even at the time.
They dropped the technology because no one savvy enough used the same computer long enough to be able to benefit from the feature more than a couple times. And you were still required to enter codes to match your forms with the administration's data, so it felt a bit useless even at the time.