The N4 Is the Most Commonly Used - and Most Commonly Botched - Notice in Ontario
When a tenant stops paying rent, the first legal step is not an application to the Landlord and Tenant Board. It is a properly prepared N4 Notice to End a Tenancy Early for Non-Payment of Rent. The N4 looks simple, but it is the single most frequent source of dismissed landlord applications.
An N4 with a miscalculated termination date, an incorrect arrears amount, or improper service is invalid - and any L1 application filed on it will fail, often months later at the hearing. That means starting the entire process again while arrears continue to grow.
We prepare and serve N4 notices for landlords across Ontario, and we review N4 notices landlords have already served to confirm whether they will hold up.
What Is an N4 Notice?
The N4 gives the tenant 14 days (for monthly or yearly tenancies) to pay everything owing - a period that drops to 7 days for N4 notices served on or after September 21, 2026, when the Bill 60 amendments take effect. If the tenant pays in full within that window, the notice is void. If they do not, the landlord may file an L1 application seeking eviction and arrears. Using the wrong notice period for the date of service is fatal to the notice, which is one more reason to have it prepared professionally.
A valid N4 requires:
- The lawful rent amount and an accurate calculation of arrears - rent only, not NSF fees or other charges
- A correctly calculated termination date based on the rental period and method of service
- Proper identification of the tenants, landlord, and rental unit
- Service by a permitted method, with a certificate of service completed correctly
Common Scenarios We See
Landlords often contact us where:
- A tenant has missed one or more rent payments and the landlord wants to act quickly and correctly
- Partial payments have been made and the landlord is unsure how to calculate arrears
- An N4 was already served and the landlord wants it reviewed before filing the L1
- A previous N4 was voided by payment and the tenant has fallen behind again
- Rent payments have bounced or been reversed
How We Assist
We assist landlords with:
- Calculating arrears accurately, including how deposits and partial payments are treated
- Preparing the N4 with the correct termination date for your rental period and service method
- Serving the notice by a valid method and completing the certificate of service
- Advising on timing - when the notice expires and when the L1 can be filed
- Reviewing previously served N4 notices for fatal defects before you spend the filing fee
- Moving directly into the L1 application once the notice period expires
Why N4 Accuracy Matters
The Board examines the N4 before it examines anything else. Common fatal defects include:
- Termination dates that are even one day short
- Arrears that include charges other than rent
- Failure to add five days for service by mail
- Certificates of service that do not match how the notice was actually delivered
Book a Consultation
If your tenant has stopped paying rent, the fastest path to a result is a correct N4 served today. Contact us to prepare your notice or review one you have already served.