My minimum fee for a family 1040 (or any 1040) is $550. Anything with a C is $900 minimum.
If a client is shocked, I realize:
"even though I could have had them for $350, which is still worth it, by not having them I make room for the one's that will happily pay $550"
I think I got this from Man Vs Tax (or Capt Cook?), but when a client mentions something that is not even close to my prices, I really like to say, "it doesn't sound like we'll be a good fit, but I'm willing to talk about it".
If they want to talk about it, I tell them that with me they are getting something that they cant get from cheap preparers. Someone who has already made mistakes over the years. Someone who has seen where not to let a client get themselves into trouble. Someone held accountable for continuing education and professional-level ethics and data management.
I tell them that if they want to find a non-rated preparer that works out of their car, for 250 bucks, I understand and wish them the best in their searches. And "If that's what you are looking for, I'm sorry that I'm not a good match for you.
Then I'm done. I don't put much time into it. A few sentences.
I guess it's "sales", but it's really just conveying the value so they understand.
If they don't like it, good, keeps availability for the one's that do.
I'm grateful beyond words that I am in such a lucky position that I can afford to be so arrogant, and I remind myself of this when I talk to people so I don't come off like a jerk.