For merchants

There are several benefits for merchants integrating BankID over OIDC rather than using a legacy integration via a locally installed BankID-server:

The integration interface is the same for both BankID netcentric and BankID on mobile.
The merchant does not need to implement any GUI for BankID on mobile since it is taken care of by the OIDC Provider itself
The merchant does not need to implement a selector dialog for netcentric vs. mobil since the OIDC Provider offers such a selector dialogue.
The integration interface is based on an industry-standard API being much more convenient than implementing via the legacy BankID-server.
The merchant may have access to value-adding services that are not available via the legacy BankID server.
There is no need to update servers on occasion; all updates are done by BankID

For partners

There are several benefits for partners as well:

No administration of merchant certificates: this is handled by BankID
Access to new products which may only be available through OIDC
Easy integration with your own OIDC platform (if you use this for other services)
Value-adding features for administrating your customers (such as Splunk dashboards and insights (WIP), customer overview in our partner portal (WIP), easier access to invoices and transaction volumes (WIP)
In near future, we plan to offer BankID OIDC without having to order a merchant-specific certificate, making the onboarding process almost instantaneous

Check the signing compatibility matrix to see which signing features we offer in BankID OIDC.