The short version
- Serving the wrong form is recoverable. Serving the right form with the wrong date is usually not.
- N8, N12 and N13 must end on the last day of a rental period. N4, N5, N6 and N7 do not.
- Mail adds five days of deemed service before the notice period starts. Courier adds one.
- From September 21, 2026, the N4 termination period for monthly and yearly tenancies drops from 14 days to 7.
- No notice evicts anyone by itself. Only the Landlord and Tenant Board can order an eviction, and only after an application.
01The whole set on one page
There are eight notices a landlord uses regularly in Ontario. They differ in what they are for, how many days they need, and whether the termination date has to sit at the end of a rental period. That last column is the one people skip.
| Form | What it is for | Notice | Must end a rental period? |
|---|---|---|---|
| N4 | Rent not paid | 14 days, dropping to 7 from Sept 21, 2026 | No |
| N5 | Damage, overcrowding, disturbing others | 20 days, 14 on a second notice | No |
| N6 | Illegal act, or misrepresented income | 20 days, 10 for drug offences | No |
| N7 | Serious safety impairment or wilful damage | 10 days | No |
| N8 | Persistently late rent, or end of term | 60 days | Yes |
| N12 | You, family, or a buyer moving in | 60 days | Yes |
| N13 | Demolition, conversion, or major repairs | 120 days | Yes |
| N1 | Rent increase, not an eviction | 90 days | No |

TenantBay calculatorPick the form, get the earliest lawful date
Almost every notice thrown out at the Landlord and Tenant Board is thrown out on a date, not on the facts. Two things move that date: mail adds five days before the clock even starts, and some forms have to land on the last day of a rental period.
The notice
Earliest lawful termination date
Pick a form and a service date.
Notice periods are from the Residential Tenancies Act, 2006 and O. Reg. 516/06. This gives you the earliest date the Act allows. It does not tell you whether you have grounds, and it is not legal advice.
02Mistake one: counting from the day you wrote it
The notice period runs from when the tenant is deemed to have received the notice, not from when you filled the form in. Hand delivery and dropping it in the mailbox count the same day. A courier is the day after handover, rolling forward if that day is a weekend or a holiday. Canada Post adds five days.
That five days is the single most expensive number in Ontario tenancy administration. It is the reason a 60-day N12 mailed on the last day of the month lands short, and it is entirely avoidable by hand delivering or by counting properly.
03Mistake two: a termination date in the middle of a period
N8, N12 and N13 have to end on the last day of a rental period. If rent is due on the first of the month, that means the last day of a month. If rent is due on the fifteenth, the rental period runs to the fourteenth, and the termination date has to be the fourteenth.
So a 60-day N12 served on August 1 does not terminate on October 1. Sixty days lands on September 30, which is the end of a period, and that works. Serve the same notice on August 5 and the earliest lawful date is October 31, because September 30 is now less than 60 days away. The form does not warn you about this. The Board does, afterwards.
04What changes on September 21, 2026
Two things move on that date, and they move in opposite directions.
The N4 termination period for monthly and yearly tenancies drops from 14 days to 7, which lets a landlord file an L1 roughly a week sooner. Weekly and daily tenancies were already at 7.
The N12 gets stricter. Give at least 120 days' notice and the one month's compensation no longer applies, which is a real saving. But the person named in the notice must move in within 60 days of the termination date, and if they do not, the notice is presumed to have been given in bad faith. A bad-faith finding can cost you the rent difference the tenant pays elsewhere for up to a year, their moving and storage costs, an abatement, and on top of all of that an administrative fine payable to the Board.
05After the notice, there is still an application
None of these forms end a tenancy on their own. If the tenant does not leave by the termination date, you file the matching application with the Landlord and Tenant Board and go to a hearing. An L1 for arrears, an L2 for most other grounds.
The Board also keeps a discretion under section 83 to refuse or delay an eviction even where the grounds are proven. That discretion is where a sloppy file gets punished and a clean one gets through. It is worth knowing that the quality of your records is doing work long before anyone reads them.
- Serve the right form, on the right day, with a date you can defend on paper
- Keep the delivery record with the notice, not in a separate folder
- Record the tenant's response, or the absence of one, with dates
- File the application promptly after the termination date passes
- Bring the ledger, not a summary of the ledger
06Where TenantBay fits
Every item above is a date attached to a tenancy. The notice date, the deemed service date, the termination date, the date the tenant actually moved out, the date the occupant moved in.
TenantBay keeps notices, leases, payments and tenancy history on the property they belong to, so that sequence can be reconstructed months later without digging through email. That matters more here than anywhere else on the site: a good-faith N12 and a bad-faith one look identical in hindsight unless you can show the dates.
Questions landlords actually ask
How many days' notice is an N4 in Ontario?
14 days for monthly and yearly tenancies on notices given before September 21, 2026, and 7 days for notices given on or after that date. Weekly and daily tenancies have always been 7 days. Deemed service days are added on top.
Which notices have to end at the end of a rental period?
The N8, N12 and N13. The N4, N5, N6 and N7 do not. If rent is due on the first, a period ends on the last day of the month; if it is due on the fifteenth, it ends on the fourteenth.
Does serving a notice evict the tenant?
No. If the tenant does not leave by the termination date you have to file an application with the Landlord and Tenant Board and attend a hearing. Only the Board can order an eviction, and only the Sheriff can enforce one.
How many days does mail add to a notice?
Five. A notice sent by Canada Post is deemed given on the fifth day after mailing, and the notice period only starts from there. Courier is the day after handover, moving to the next day that is not a holiday. Hand delivery and the mailbox count the same day.
Can I fix a notice with the wrong date?
Not by amending it. You serve a fresh notice with a correct date, and the full notice period runs again from the new service date. That is why the date is worth double checking before anything goes out.
Sources


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