Which if anything is wrong with the following sentence?
An appeals court ordered the money returned, however, the IRS didn't comply.
a) Lacks parallel parts
c) comma splice
The easiest to eliminate is c. The inserted word "however" connects the two clauses, so it isn't a comma splice.
The "IRS didn't comply" does clearly tie back ...
A grammar question is posed. An appeals court ordering money returned for IRS are determined.