(1)Commencement of collection obligation. If a remote seller or marketplace facilitator without physical presence in Iowa did not exceed the sales threshold for the prior year and therefore does not collect sales tax in the current year, and exceeds the sales threshold in the current year, the remote seller or marketplace facilitator must collect Iowa sales tax and applicable local option sales tax starting on the first day of the next calendar month that starts at least 30 days from the day the remote seller or marketplace facilitator first exceeded the sales threshold. The remote seller or marketplace facilitator must collect tax through the end of the calendar year in which the sales threshold was met or exceeded as well as the entire next calendar year. EXAMPLE: Company S, a remote seller, did not exceed the sales threshold in 2018. On September 15, 2019, S exceeds the sales threshold for the first time. S must register to collect Iowa sales tax and must begin collecting Iowa sales tax and applicable local option sales tax on November 1, 2019. S must continue to collect through at least December 31, 2020. S's sales volume in 2020 and later years will determine whether S must collect Iowa sales tax and applicable local option sales tax after December 31, 2020.