Orange inpayment slip

In Switzerland ESR’s are the evolution of the normal inpayment slip, where account, amount and a reference number are computer readably encoded on it which an optical character recognition machine can read. The ESR inpayment slip carries the following payment information

[1] Biller account (PC-Konto): The ESR biller is assigned an account number (Postcheckkonto) for automated payment processing.
[2] Biller’s name and address printed on the ESR must enable the debtor and postal service to clearly identify the creditor.
[3] Debtor name: The debtor is specified on both the processing slip and receipt stub.
[4] Coding-line (Codierzeile): The coding zone is the area designated for the code-line.
[6] Amount (Betrag): The payment amount. Might be left blank in ESR+, else the amount in the codeing line and amount-field must match.
[7] Reference number (Referenz Nr): The reference number is numeric with either 16 or 27 digits. It is also fully contained in the coding zone.

Code-line

The code-line includes all information needed for automated payment processing, together with checksums for error detection.

The first two digits of the code-line indicate the type of payment slip:

01 = Inpayment in CHF, amount encoded
03 = COD-Inpayment in CHF (cash-on-delivery)
04 = Inpayment+ in CHF, amount open
11 = ISR in CHF for credit to own Yellow Account
14 = ISR+ in CHF for credit to own Yellow Account
21 = Inpayment in Euro
23 = Inpayment in Euro to own Yellow Account
31 = Inpayment in Euro
33 = Inpayment in Euro to own Yellow Account