Do you give client's client copy or the filing copy? The client copy seems to be overkill

I only print the Filing Copy and I add a few extra forms/worksheets to it in the Print Options...Ive never printed a Client Copy or Preparer Copy

Why do you say it is more expensive to mail? Are you including all of the input worksheets?

There's your cost.

I have always given the Client Copy, and the only page included there that is NOT on the Filing Copy is the Slip Sheet.

I also give the two year comparisons, because clients like to see that. IRS doesn't care about that.

You have to take a minute and set-up what you want to have print for the Client copy, otherwise you are getting a ton of worksheets etc. The Filing copy is limited. I also send informational pages to the clients if I think they would appreciate it or should have it, comparisons, depreciation schedules etc.

As far as cost, I use Flat Rate Priority Mail at USPS.com regardless of the weight. It may cost a little more, occasionally, but it gives me some peace of mind with tracking and delivery confirmation at a fixed cost.