In most cases, if your province was set in your PROFILE to Québec, the default is you will be eligible for QPP. If set to another province, the default is you will be taking CPP. However there can be exceptions to that. For example if you lived and worked in another province, but choose to retire in Québec, then you will be eligible for CPP and not for QPP. For this reason, we allow you to select the other plan by checking the box in the input form. The province in your PROFILE will still determine where provincial taxes are payable.