Certify, which has been growing with the consolidation of expense management software companies, has acquired Portland, Maine-based Abacus. Terms were not disclosed for the purchase of the software company, which was founded in 2013.

The National Society of Accountants has launched a self-study Registered Tax Return Preparer Exam Review Course. The course is designed to enable those who must pass an exam from the Internal Revenue Service in order to demonstrate competency in preparing fedral tax returns.