Sundry applies the right rule for a prime contractor, a subcontractor or a speculative builder, places each sale at the job site and cites the statute for every product decision, so the bookkeeper who knows construction can take on more contractors.

Sal Sundry knows whether your client is the prime contractor, a subcontractor or a speculative builder, and applies the right rule. Each sale is placed at the job site, every product gets a Washington decision with the statute cited, and month-end stops only where you are needed. Then your client signs off on the Sundry Worksheet.
Dana Contractors need a bookkeeper who knows this. That's a practice I can grow.
Rory Almost every contractor in Washington deals with this. Their bookkeeper shouldn't have to do it by hand.