Comment Taxes are a government requirement (Score 5, Insightful) 92
Since taxes are required by the government, and go to fund the government, the government should be doing everything it can to make filing easy and accurate.
A good tax filing platform, like a road, is a public good. However, private companies also make tax filing platforms, and one provided by the government is competition to them, and reduces profit. So, it makes sense they would try to eliminate the government option. They can privatize and profit from this public good.
Government is influenced by everyone from individual citizens to large corporations, via money. I have found this page, at Open Secrets, to be very useful in understanding all the ways that legal constructs (businesses, unions, etc) and people can direct money to the government: https://www.opensecrets.org/resources/learn/glossary