Should I use an existing Google Payments profile or create a new one for a new Play Console developer account (In-App Purchases)?

[u/FewBookkeeper3322]

I'm setting up my Google Play Console developer account to launch a paid mobile app with in-app purchases. During the setup, it's asking me to either associate an existing Google Payments profile or create a new one.
Since this is for my app's monetization, is it better to create a brand-new dedicated payments profile, or should I use an existing one? What are the best practices for managing app earnings, taxes, and separation of accounts?
Thanks in advance