No one uses a fax anymore!
Seriously, cities tax employees for the services they use. This is not a tax on companies and no one is moving out because their employees have to pay a small tax so the city can maintain basic services. If it were the case then cities like NY, Philly, Denver, Baltimore and Atlanta, among countless others would be ghost towns. I believe CT is guilty of overtaxing on several levels, but please understand how a city wage tax works, who benefits, and frankly who pays for the services now. Hartford has a lot of problems, many of which were discussed in this thread, but assuming the way Hartford gets better is for the residents there to support the services needed in a thriving city is a failing argument, and has certainly failed to date. Hartford's only choice now is to charge property taxes that are so high that people keep leaving and schools continue their death spiral.
Separately, they should set the tax on landowners based on land usage - you want to own a surface parking lot, your tax is 2-3X what we would charge for someone to develop the property. In other words, address the pockets that pervade the city with incentives for landowners to develop or sell to someone who will.