My workers comp policy was through Travelers, and cost $390 (it was part of a larger package of coverage ).
ALSO - I just double checked, and that was contingent on the fact that I used a payroll company, and they had insurance as well. I don't have a break out from them as to what part of my cost with them was for insurance.
So my price is low...sorry for misstating originally, I just now went back and reviewed the paperwork.
The workers comp that I bought (in addition to the one through the payroll co) was from Travellers.
My actors were union, so can't comment on non-union.
Of course, as others have mentioned/implied/suggsted, there's always a big differenece between things that are "required" and those that are absolutely unavoidable in low/no budget filmmaking.
You can shoot a movie without paying anyone or getting any type
of insurance at all. Hundreds to just that all the time. It's not
recommended, but it's done.