Cost and capital requirements
The capital requirements to go into principal membership are higher than for BIN sponsorship. In addition to the fees from the card schemes, there are capital requirements based on the license, certifications are required, and your organisation has to be able to manage the technical aspects of card issuing directly with the card scheme.
The cost to go into BIN sponsorship is lower up front. Instead of having to pay for the licenses and capital up front for your program, you pay for the program on an ongoing basis with per-card and per-volume fees.
Time to market
The time required to go into principal membership with a card scheme can take longer than for sponsorship. The principal membership comes with additional certifications, licenses, and regulatory checks that add to the time it takes to launch the program.
With sponsorship, your program can go live much faster because a sponsor will already have their licenses and clearances in place with the card scheme.
Control and flexibility
In the principal membership model, the card program will have more control over the features of the product and which aspects of the program get negotiated with the card scheme directly.
For BIN sponsorship, the product features and aspects of the program are negotiated by the sponsor of the BIN. There are trade-offs between the two models for this aspect of the program.
Economics at scale
For programs that go into principal membership, the unit economics are typically better at high volumes. The fees paid to the card schemes are lower, and the program can collect more revenue from the card scheme incentives that are paid directly to the program rather than the sponsored programs of the sponsor.
For BIN sponsorship, the unit economics at high volumes shift in a way that is less economical than for principal membership. The per-card and per-volume fees that are paid to the BIN sponsor grow in cost at high volumes.
At high volumes, these programs typically begin to plan their exit to principal membership status.