I searched on Google and found this under 'Rugby League referee jobs' in the Q&A section 'How much do SL refs get paid'.
Unfortunately there's no link to say where it came from!...
Referees in the top-flight of England can earn as much as £70,000 per year. They are paid a basic yearly retainer of between £38,500 and £42,000 based on experience, and then are paid £1,150 per match on top of that. Championship referees receive the same basic yearly retainer but are only paid £600 per game.25 Feb 2019
https://www.google.com/search?q=rugb...hrome&ie=UTF-8