To further clarify we have 2 branches and up until mid May everything was posting to the -00 acct, as it should.  Now one of the locations, all the sales tax accrual is posting to an -01 acct.  One state, multiple counties.  I've never seen this happen.  

By location do you mean warehouse?  There is an option for GL segment substitution by warehouse code, but I didn't think that would apply to the tax accounts.

By location do you mean warehouse?  There is an option for GL segment substitution by warehouse code, but I didn't think that would apply to the tax accounts.

We have two physical business locations in one state, different counties.  Most of the time we do delineate costing, invoicing, etc. by -01 or -03 for the location.  but sales tax accrual has always dropped into the one acct.
I swear there has to have been a setting changed, but we can't find it

Those types of segment substitution work only if the GL account exists for the segment.  It could be that someone simply created that record in GL_Account... not that a setting was changed.

Perhaps create a test company, and in the test company use the GL change account utility to merge the -01 account into the -00 account.  Then try again (when the -01 account does not exist).  If the test works, you have your answer.  If it doesn't work: no harm done (because you used a test company).

why do I always forget the test company option.  I will try that later today.  Thank you!!