New standards governing accounting for contracts will go into effect for most companies in 2018. The Financial Accounting Standards Board (FASB), which administers Generally Accepted Accounting Principles in the U.S. (US-GAAP), has issued ASC 606, and the International Accounting Standards Board (IASB), which administers International Financial Reporting Standards (IFRS) used in most other countries, has issued IFRS 15. The two are very similar, and both will enforce fundamental changes in this area of accounting. Under the new approach to accounting for contracts, revenue (and some corresponding expense) is recognized only when customers are satisfied. In contrast, until now revenue was recognized when internally measurable events occurred, such as on delivery to the customer, the completion of milestones or the passage of time. In addition to dealing with an impact on accounting and planning, which I have discussed, companies may need to examine how the rules will affect how they account for commissions and other contract acquisition expenses.