First, you must have your employer sign a T2200 stating that the purchase of the computer was a requirement of your employment. Once that is signed, you can then fill out the T777 for employment expenses and assets. The computer will be entered as an addition to fixed assets, but due to the half-year rule, you can only claim half of the 50% in the year of acquisition. You will need to answer yes to employment expenses in the profile questions.
