The Bundesbank has published the “Bezugszinssatz” (10-year zero-coupon euro swap rate) for March 2024. It amounts to 2.57 %.
The “Referenzzinssatz” for the calculation of the “Zinszusatzreserve (ZZR)” as of 31.12.2023 amounts to 1.57 %.
Assuming that the “Bezugszinssatz” remains constant, the “Referenzzinssatz” as at 31.12.2024 would be 1.57 %.