Wondering about the Canada corporate tax return due date? Your corporation must file its return within six months after its fiscal year-end, but payment is typically due within two or three months. At Vertical CPA, we manage these deadlines for you—preparing accurate returns, avoiding penalties, and optimizing your tax position. With our expert help, you’ll never miss an important date or overpay on corporate taxes. Let us handle the complexity, so you can focus on growth.