The CP51C is the last notice in the CP51 series. The IRS has sent two prior notices (CP51A and CP51B) and you haven't resolved the balance. The tone is now urgent. The next step is the final levy notice, which starts a 30-day countdown to bank levies and wage garnishment.
What's Coming Next
After the CP51C, the IRS will send a CP90, LTR 1058, or LT11 — the final notice of intent to levy with CDP hearing rights. Once that 30-day window passes without a hearing request, the IRS can levy your bank accounts, garnish your wages, and seize other assets without further notice.
Last Chance for Easy Resolution
At the CP51C stage, you can still set up a streamlined installment agreement online for balances under $50,000. After the final levy notice, the process becomes more formal and typically requires professional help. The cost difference between resolving now and resolving after a levy notice can be thousands of dollars in professional fees alone, plus additional penalties and interest.
Don't Wait
The CP51C is the last polite notice. Everything after this is enforcement. If you can pay, pay. If you can't, set up a payment plan or call a tax professional to explore your options.
If you've received a CP51C, call us immediately at (813) 229-7100.