LTB Certificate of Service in Ontario: Proving a Document Was Served (Standard and L10 Forms)

Ontario's Landlord and Tenant Board (LTB) relies on one short form, the Certificate of Service, as proof that paperwork changed hands. On it you record who did the delivering, which person got the papers, on what day, and by what means. Most eviction applications need one to show the termination notice really reached the tenant. A second version exists for one narrow job, proving that an L10 application went to a former tenant who has already moved out.

Quick facts

Why the certificate exists

The permitted ways are listed in s. 191 of the RTA, which governs the methods to give a notice or document, and Rule 3 of the LTB's Rules of Procedure adds further options. When the Rules call for it, or the Board tells a party to do it, the person who did the serving confirms it on a signed Certificate of Service (Rule 3.8). Think of the form as evidence. If someone says at the hearing that they never got the document, the Member will test what the certificate says against the facts.

The Board publishes two certificates:

• The Certificate of Service, for landlords and for tenants who still live in the unit. Use it for notices to end a tenancy, set-aside motions, applications, review requests, Notices of Hearing and anything else.
• The Certificate of Service – L10, when the paperwork is an L10 application with its Notice of Hearing, going to someone who has moved out of the unit or no longer has possession of it. A note on the form says it is not for a tenant who still occupies the unit.

Picking the right version

• Standard certificate: any notice (N4, N5, N12 and the rest) handed to a tenant who still lives in the unit, and any paper the Board orders served.
• L10 certificate: only once the tenant has left. Its service methods differ because delivery goes to wherever the former tenant lives now.
• No taping to the door. Posting is good service for one thing only, the s. 27 notice of entry with 24 hours' warning, unless a Member says otherwise. Both Rule 3.2 and the form say so.
• Email needs written consent (Rule 3.1). Someone who has moved out can be emailed only if they gave that written consent during the tenancy, and you must be able to prove they received it (Rule 3.3).

Timing rules

The date service counts from (Rule 3.9)

This table matters because a notice period starts at service. Mail a notice to end a tenancy and the date you choose for termination must absorb those five additional days.

When the certificate itself is due

• Portal applications: the termination notice and the certificate should go up when you file (Rule 4.4). Failing that, you have 5 calendar days, and missing that window can lead to an administrative dismissal (Rule 4.5).
• When you must serve the application and Notice of Hearing yourself: the certificate is due no more than 5 days afterwards (Rules 3.8 and 5.15).
• L10 matters: service of the application and Notice of Hearing has to happen 30 days or more ahead of the hearing (Rule 5.8), and the L10 certificate has to be filed 20 days or more ahead of it (Rule 5.16). Where no permitted method can work, Rule 3.4 says to request alternative service at least 40 days out.

If you are the one being served

Tenants (and landlords receiving a tenant's documents) can use the same table. The deemed service date tells you when a notice period really began, and a certificate that names a method not allowed for that document, such as a termination notice taped to a door, is something you can raise at the hearing.

Completing the form, part by part

The standard certificate

1. File number and rental unit address. No application yet? Leave the file number empty.
2. The certifying sentence. Fill in the name of the person who served the document and the date they served it.
3. What was served. Tick every document delivered: Notice of Termination (add the form number, such as N4), Application (form number), Notice of Hearing, Motion to Set Aside an Ex Parte Order, Request to Review an Order, or Other (describe it).
4. Who received it. Choose tenant, landlord or other and print the name. Where several tenants were served the same way on the same day, tick that option and staple on a list giving each one's name and address.
5. How it was served. Pick one method, the one you actually used. The choices are: personal delivery (to the person themselves, an adult in the unit, or a landlord's employee with authority); the mailbox; the mail slot or the gap under the door; courier; fax, with its number; regular mail or Xpresspost sent to the last address you know of, with that address; or "a different method", explained.
6. Sign-off. Indicate landlord, tenant, representative or other, add a name and phone number, and have the person who did the serving sign and date it.

The L10 certificate

The layout matches the standard form. Three things differ. The papers listed are the L10 Application plus the Notice of Hearing. The person served is the ex-tenant. And every method is aimed at the place that person lives today: handing it to them or to an adult there, mail, courier, their mailbox, their mail slot or door gap, or email if they consented in writing back during the tenancy and receipt can be proven. Fill in that present address beside whichever method applies. Be ready to explain at the hearing how you learned that address, because the form says you may be asked.

Getting it to the Board

According to the LTB, both certificates are filed on the Tribunals Ontario Portal. Typing the person's name works as a signature for a Portal filing (Rule 4.3). Nothing is charged. Licensed representatives (paralegals and lawyers) are required by the LTB's Practice Direction on licensees to file applications, and the requests named there, on the Portal.

Errors that sink the certificate (or the case behind it)

1. Ticking a method that did not happen. Giving the Board misleading or untrue information is an offence. Separately, a notice that went out by a method the rules do not permit can collapse at the hearing.
2. Posting an N4 on the door. A notice to end a tenancy is not validly served that way, and the eviction case resting on it is exposed.
3. Emailing with no written consent. Rules 3.1 and 3.5 require that consent. Without it, legally nothing was served.
4. Using the mailing date as the service date. Forget the five deemed days and the termination date can end up too early, leaving the notice period short.
5. Leaving it off the application. Let the 5-day post-filing window pass and the application may be administratively dismissed (Rule 4.5).
6. Treating a former tenant like a current one. Under RTA s. 191(1.0.1) and Rule 3.3, an ex-tenant gets served at their present home. The old unit will not do, and neither will the standard certificate.
7. A late L10 certificate. The form itself warns that the hearing may be cancelled and the file closed if the certificate is not in 20 days or more before the hearing.
8. The wrong signature. Only the person who did the serving may sign (Rule 3.8).

After you file

Once filed, the certificate is part of the record backing the application. If the Board finds service was defective, Rule 5.17 lets it go ahead anyway when no one is prejudiced, put the hearing over, or dismiss the case. If no permitted method can reach the other party, the next step is a Request to use Alternative Service.

Common questions

Whose signature goes on the certificate?

It is signed by the individual who delivered the papers. That could be a process server, a property manager or the landlord. Representatives sign only for service they carried out themselves.

Is email a valid way to serve an N4?

Only with the tenant's written agreement to email service, as Rules 3.1 and 3.5 require. Keep the signed consent on file; the Board has a Consent to Service by Email form you can use.

If the Board sends out the Notice of Hearing, is a certificate still needed?

As a rule, the Board handles delivery of the Notice of Hearing and application (Rule 5.1). You still certify anything you delivered personally, like the termination notice, plus anything the Board tells you to serve.

How much extra time does mail add?

Five days. Rule 3.9 treats mail as arriving on day five after it was sent, so your count of the notice period begins there.

Official sources

• Certificate of Service (PDF)
• Certificate of Service – L10 (PDF)
• LTB Rules of Procedure, Rules 3, 4 and 5
• Residential Tenancies Act, 2006, s. 191
• LTB Forms, filing and fees