Gov. Jan Brewer is expected to announce details of her proposal for a comprehensive simplification of the Arizona’s sales tax collection system at a press conference Monday.

Brewer says the current system has so many twists and turns it is extremely difficult for businesses to pay what they owe. She says business owners serving multiple cities must file multiple tax returns and undergo multiple audits. She’s said she wants a system that has just one form and one filing per business.

Cities and towns have objected to one part of the proposal that would change how sales tax on new construction is collected. They say that will hurt growing cities by sending the taxes elsewhere.

Brewer plans to announce the introduction of legislation designed to implement her plan.