Hi RPusch - my client originally told me that they were successful in paying the Trust taxes through the AZ website, but I checked with them this morning now find that they were not able to do so.  They instead paid by check (which they weren't supposed to do).

My understanding is that the other option is to remit the taxes using direct debit through tax prep software. I assume that this can be done through Lacerte, but I haven't confirmed.  Please let me know if you find out anything more.