You can file a T2 corporate tax return using your EFILE number and password, or using the corporation's Web Access Code (WAC).
If you recently renewed your EFILE number, you will immediately receive a new EFILE password for the year. However, the suitability screening may not complete immediately. Until it has, you cannot file T2 returns using your EFILE number and password. You can, however, use a Web Access Code (WAC) to file the T2 return. Here's how to request a WAC and where to enter it in TaxCycle.
If you received a Web Acces Code (WAC) from your client or by contacting the CRA in another way, enter the WAC on the T2CIFWS.
If you have both an EFILE number configured TaxCycle options and a WAC on the T2CIFWS, you may see a review message alerting you to this. When both are entered, TaxCycle will automatically use the WAC to transmit the return.