u/ArtistFinanceAdvice

Make sure you're registered with both a PRO (ASCAP or BMI) AND the MLC at themlc.com — most artists only have one and miss an entire royalty stream. The MLC collects mechanical royalties from streaming and registration is completely free. A lot of artists have unclaimed money sitting there right now. SoundExchange also goes back approximately 3 years for retroactive payments so it's worth checking even if you've been releasing music for a while.