> ## Documentation Index
> Fetch the complete documentation index at: https://developers.circle.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Payment reason codes

When you
[create a payment with the CPN API](/api-reference/cpn/cpn-platform/create-payment),
you should include a `reasonForPayment` code in the API request. Each code
provides a specific payment reason.

The following table outlines each code and the reason it represents.

| Reason code | Description                                                                                            |
| ----------- | ------------------------------------------------------------------------------------------------------ |
| `PMT001`    | Invoice payment                                                                                        |
| `PMT002`    | Payment for services                                                                                   |
| `PMT003`    | Payment for software                                                                                   |
| `PMT004`    | Payment for imported goods                                                                             |
| `PMT005`    | Travel services                                                                                        |
| `PMT006`    | Transfer to own account                                                                                |
| `PMT007`    | Repayment of loans                                                                                     |
| `PMT008`    | Payroll                                                                                                |
| `PMT009`    | Payment of property rental                                                                             |
| `PMT010`    | Information service charges                                                                            |
| `PMT011`    | Advertising and public relations related expenses                                                      |
| `PMT012`    | Royalty fees, trademark fees, patent fees, and copyright fees                                          |
| `PMT013`    | Fees for brokers, front end fee, commitment fee, guarantee fee, and custodian fee                      |
| `PMT014`    | Fees for advisors, technical assistance, and academic knowledge including remuneration for specialists |
| `PMT015`    | Representative office expenses                                                                         |
| `PMT016`    | Tax payment                                                                                            |
| `PMT017`    | Transportation fees for goods                                                                          |
| `PMT018`    | Construction costs/expenses                                                                            |
| `PMT019`    | Insurance premium                                                                                      |
| `PMT020`    | General goods trades (offline)                                                                         |
| `PMT021`    | Insurance claims payment                                                                               |
| `PMT022`    | Remittance payments to friends or family                                                               |
| `PMT023`    | Education-related student expenses                                                                     |
| `PMT024`    | Medical treatment                                                                                      |
| `PMT025`    | Donations                                                                                              |
| `PMT026`    | Mutual fund investment                                                                                 |
| `PMT027`    | Currency exchange                                                                                      |
| `PMT028`    | Advance payments for goods                                                                             |
| `PMT029`    | Merchant settlement                                                                                    |
| `PMT030`    | Repatriation fund settlement                                                                           |