Only with the IRS are you guilty until proved innocent. I got a letter a few months ago informing me that I hadn't paid my taxes. I checked my records and I had sent them a check and they cashed it. I spent an hour on the phone and the answer given was that it probably hasn't been credited to my account yet. The office that does that is behind due to the virus. Got another letter last week informing me that I still owed for my taxes. Another hour on the phone and was told that it must have been deposited in the wrong place and my account wasn't credited. Now I have to make an appointment with the office in Houma and bring a copy of the front and back of the check so they can see where they put the funds and correct it. And you can't just show up, have to make an appointment.