Enter the amount of Québec income tax withheld at source and shown in box E of your RL-1 slip, box J of your RL-2 slip, box G of your RL-6 slip, box 16 of your RL-15 slip or box I of your RL-25 slip. Income tax withheld from Employment Insurance benefits is shown on your T4E slip, and the income tax withheld from the Old Age Security pension is shown on your T4A(OAS) slip.