The PE428 form is used to claim non-refundable tax credits and calculate Prince Edward Island tax on taxable income. This form includes information on tax credits such as basic personal amount, age amount, spouse or common-law partner amount, eligible dependant amount, and more. It also includes details on deductions such as medical expenses, donations and gifts, and tuition and education amounts. The form is applicable for T1 General - 2017 and is to be attached to your return.