If you don't pay dues, become a member sooner rather than later. Make no mistake, you have now opened a can of worms and they will be targeting you until you either quit or retire. I can sense the dirty looks (and chuckles) and unexpected paid vacations (terminations that don't stick) in your future. You'll soon discover that opening this can of worms benefits you and others greatly. Treat your union dues like job insurance. Instead of just contributing to a lousy 401k, the union has negotiated a good pension. Instead of paying for your benefits, they are pretty much free and are the best in the country all thanks to the union. I could go on but you get the point. Pay your dues.