Answer: debit amortization expense account $2.5million
Question:
Required: Prepare the appropriate adjusting entry for patent amortization in 2013 to reflect the revised estimate.
Explanation: Amortization is the deduction made every period to reflect the cost of an intangible asset such as patent and intellectual property.
When amortization uses a straight line method, which is usually the case in patents, we deduct equal usefulness over its useful life and deduct equal amounts every period.
The patent has already been amortized at an amount of $1 million ($9 million divided by 9 years) annually for 4 years (2009, 2010, 2011, 2012).
This leaves us with $5 million to be amortized ($9 million - $4 million ). However the useful life has been adjusted to 6 years instead of 9, so $5 million has to be amortized in 2 years, making the amount to be deducted $2.5million per year.
On December 31, 2013, we will debit amortization expense account $2.5million and credit the patent account with $2.5million