Listed below are types of payments and which PO Box address should be used for each.
| NCP Payments | PO Box 268849 OKC, OK 73126 |
| CP overpayments (must have payment clearly marked as overpayment) | PO Box 268849 OKC, OK 73126 |
| Employer & Interstate Payments | PO Box 268809 OKC, OK 73126 |
| FIDM Payments | PO Box 36357 OKC, OK 73136 |
| Interstate Payment Returns | PO Box 248822 OKC, OK 73124 |