Many years ago I received a notice from the IRS that a deduction my CPA took off was within the rules at the time my tax
Return was filed but then the IRS decided later on it was not legitimate and so not only did I owe the tax not paid,but also the fines associated with underpaying my taxes, and the interest that had accumulated in the two years since I had filed the return. Needless to say I was not happy. The IRS fully admitted it was their fault, but I stilled owed everything. I spoke to my CPA who confirmed everything the IRS told me and so I had.no choice but to pay. I asked for the address where I could pay in person and after being given the address I told them I was paying in cash. They told me that they did not accept cash. Only checks or money orders.