In West Virginia nearly nearly 80% of the state returns filed so far have been submitted online.
That's up from last year when 68% of returns were filed electronically.
A spokesperson with the West Virginia Tax Department says electronic filing has made the last-minute rush easier to handle.
But local tax agents say as with most things online there are drawbacks.
"When you're doing something like that online it's not the math, it's not the numbers, it's one little yes or no box that can send you going the wrong direction and maybe deny you an earned income tax credit or deny you an education credit, a child tax credit. Something like that. So it is worthwhile to have them looked at," says H&R Block Enrolled Agent Nancy King.
King says the biggest culprit of last minute filing is procrastination.
She recommends for anyone filing on the final day to have all their paperwork ready and prepared.