Why this escalates faster than other tax debt
Deposit penalties apply on a sliding scale that gets worse the later the deposit is, and they apply per deposit rather than per year. A business that falls a couple of quarters behind can find penalties have added a substantial amount to the balance before anyone from the IRS has picked up the phone.
Beyond the money, the IRS has tools it uses rarely on other debts and readily on this one, including levying receivables, contacting your customers, and in serious cases seeking to stop the business operating while it continues to accrue new liability.

