The founding year of my label / company or my birth year are after the year of the recording. Am I therefore exempt from having to notify GVL or from a payment obligation?

The founding year of my label / company or my birth year are after the year of the recording. Am I therefore exempt from having to notify GVL or from a payment obligation?

No, because the rights of the producer of sound recordings for earlier recordings can be acquired via contractual transaction by anyone in Germany, at any time. If you hold such rights, you must notify GVL and, where applicable, pay such shares.