This isn’t about credit cards but normal banking services. They can’t maintain a company bank account to do things like pay taxes, which is why crypto doesn’t work for them.
They have a nice page about how to make an appointment (recommended 30-60 days in advance): https://www.irs.gov/payments/what-to-expect-when-you-pay-cas...
Even ill gotten gains are taxable and the theory of one crime at a time suggests that even “other, unspecified” could be with paying taxes on to reduce the likelyhood of successful criminal persecution.
That said, pay your taxes even if you’re a criminal for sure!