Meh, when I first joined, I was pretty laid back, didnt wanna fight, just grow my nation in peace.
Ive come 180 degrees from that. I love myself a good war, even if its just smashing rogues
Edit: I also enjoy the RP part of the game
Your alliance would need to have a score of better than 20.64 (that of the lowest sanctioned alliance GGA). Im sorry, but I dont know how the score is calculated.
The more trades and improvements you have (some of which boost your citizens income), as well as certain events will boost your citizens income. This in turn will boost your daily tax collection.
Sage