Tuesday, May 25, 2021 On May 21, 2021, the Massachusetts Supreme Judicial Court issued a decision affirming the Massachusetts Tax Appeal Board’s decision in favor of Microsoft and Oracle, ruling that the companies may apportion sales tax to other states on software purchased by a Massachusetts company from which the software was accessed and seek a tax refund. The case involved a claim by vendors for abatement of sales tax collected on software delivered to a location in Massachusetts but accessible from multiple states. The Massachusetts Department of Revenue (DOR) claimed that the statute gave it the sole right to decide whether the sales price of the software could be apportioned and, if so, the methods the buyer and seller had to use to claim apportionment. Under rules promulgated by the DOR, there are three methods to choose from, such as the purchaser giving the seller an exemption certificate claiming the software would be used in multiple states, none of which the purchaser used. The DOR argued that if a taxpayer did not use one of the methods specified in the rule, no apportionment was permitted. The vendors sought abatement of the tax on the portion of the sales price that could have been apportioned to other states had one of the methods specified under the rule been used. The DOR claimed the abatement procedure was not a permissible method of claiming apportionment.