For an accrual basis taxpayer, the all events test is not met until economic performance occurs. Economic performance occurs:

when a corporation receives its completed tax return from its accountant.

when the employees of a self-insured corporation receive medical treatment.

when a corporation purchases a $5 million annuity in settlement of a $20 million award to a plaintiff/customer in a products liability lawsuit.

on March 1, when a corporation uses a leased copy machine to make 12,000 copies for the month of March and it must pay $.10 per copy for copies made in excess 10,000 plus a flat fee of $500/month.