What are the differences between CORE and B2B direct debit mandates?

There are two types of mandates defined by the European SEPA standard: CORE and B2B

CORE direct debits are refundable within 8 weeks if authorized. It is not necessary to send the mandate to the bank of the person being charged, it is presumed that the customer has given his consent. In the event of a problem, the bank will request the mandate from the issuer of the direct debit, who must be able to send it the signed mandate.

B2B direct debits are exclusively reserved for businesses and are non-refundable. Administrations use this type of mandate to ensure that the flows received will not subsequently be contested. Some large companies also use them, but these mandates are more restrictive. It is mandatory to accept the mandate from the bank which receives the direct debit, otherwise the direct debit will be automatically rejected.