If you prepare and distribute T4, T4A, NR4, T4A-NR, T4PS or T2202 slips, then you will need a specialized envelope to ensure that they can be securely mailed to the recipient.
For the NR4, T4A-NR, or T2202 slips you'll need the single window envelopes, and for the T4, T4A, or T4PS slips you'll need the double window envelopes.
Our single & double window envelopes are specially designed for distributing Canadian tax slips which are printed 2 per page. They are 5.75 X 9 inches in size and feature a security pattern to protect the confidential information on the enclosed tax forms.
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