To answer your question, Beverly, my existing clients know that I have raised my rates. I let them know that that’s part of the perks of being a long-term client, that as a thank you to them, as long as they keep coming, they can keep the old rate.
I only quote my new clients the existing rate, so they may or may not know that others pay less.
As an aside, one of my clients is a marketing exec, and she told me I should raise my rates for everyone. I’m still chewing on that….