**Yes—assuming this was an ordinary personal cheque, you still owe that month’s rent.** Quebec’s Tribunal administratif du logement explains that, when rent is paid by regular cheque, payment is completed only when the bank honours it. Delivering the cheque alone does not settle the debt. [TAL: Paying the rent](https://www.tal.gouv.qc.ca/en/being-a-lessee/paying-the-rent)

Applying that rule to your situation, the original cheque was never cashed, so the rent remains unpaid. The theft being outside your control does not eliminate the rent obligation. You would be replacing an unsuccessful payment; only one month’s rent should ultimately leave your account.

When providing the replacement, keep the landlord’s request to stop payment and get written confirmation that the new payment replaces cheque number X for the specified month. Keep your bank’s stop-payment confirmation too.

If you incurred stop-payment fees, you can ask the landlord to reimburse them. That is a separate issue from whether you owe the rent.

This answer assumes an **ordinary cheque**: certified cheques and certain other guaranteed payment instruments receive different treatment under [article 1564 of Quebec’s Civil Code](https://www.legisquebec.gouv.qc.ca/fr/showversion/cs/CCQ-1991?code=se%3A1564&pointInTime=20191218).