No, a P.O. box cannot serve as a registered office in Quebec. A business corporation must declare a real civic address to the Registraire des entreprises, one capable of receiving mail and legal service. Ancre provides exactly that address at 3737 Crémazie Est, suite 402, Montreal, with a human receptionist on site.
Address and Quebec Registry
Can a P.O. box serve as a registered office in Quebec?
Anchor your business in Montreal.
Open remotely in 10 minutes. 30-day guarantee. A human at reception, suite 402.