(Tax Year 2020): Can my own DBA charge a referral fee to my own corporation so that I can align overall tax liability in more favorable way to my current situation.

This question is for 2020 Tax Year: Since late 2019 I had a DBA with active income. In 2020 I created a California Corporation (owned by myself) and transferred my 2020 DBA business to it. Can my DBA charge a referral fee to my corporation? Can this payment be made now? If so, then it will help me in managing my tax liability efficiently.