If tax professionals renew their product subscriptions for traditional on-premise software at the usual rate, it probably means the generation of online tax prep is still around the corner for most pros. And from the relative silence of the tax vendors, it sounds they realize like that era has not arrived.

Rivals Thomson Reuters and Wolters Kluwer, parent to CCH, are continuing to snap up international companies that market online tax and accounting products. In its latest foray, Thomson this week acquired a web-based corporate tax product for the South African market from accounting firm Deloitte. Terms were not disclosed. It was the company's third purchase of an tax and accounting vendor with international operations since May 1.