Hi Don,
The only setting that has any control over what is sent to Job Cost by Adagio Invoices is in the company profile. The option is called 'Include tax on transfer to Job Cost?'. What this does is break out the tax as an Other Charge, so that when the billings batch is retrieved into Job Cost, there are 2 entries; the billings and the tax. You can safely delete the 'Other Charges' (or tax) amount.
Without the Include tax option, only one entry is sent to Job Cost, for the full amount including tax. At this point, there is no way to break out the tax except for editing the retrieved batch.
Regards,
Softrak Support