Leagues with no Prize Money

If I don't set any prize or TV money for a league or cup competition, will the teams in the league/cup still get some kind of default money payment the end of the season or are they then completely self sufficient on crowd and player revenue?

No, not with the normal editor-

However, and this is something I have just worked out- if you switch the file to advanced editing, go to the league settings of each league you have set up, and you will see the Prize money box is ticked, but with nothing specifed in the dialogue box. Simply untick, and the game will indeed generate a default prize money.

For Cups, simply switching the rules to advanced will have the same impact.