How to File an L1 Application for Unpaid Rent

Before you start: what you need first

An L1 application asks the Landlord and Tenant Board (LTB) to end a tenancy for non-payment of rent and to order the tenant to pay the rent that's owing. Before you can file one, you generally need to have already served a valid N4 Notice to End a Tenancy Early for Non-payment of Rent, and the notice period on that N4 generally needs to have expired without the tenant paying the full amount owing.

Gather your documentation before you start the application: the N4 itself with proof of how and when it was served, a complete rent ledger showing the tenancy's rent history and every payment received, the lease or tenancy agreement, and a running calculation of arrears as of the date you intend to file. The LTB's online filing portal and paper forms both ask for precise figures, so having this worked out in advance avoids having to amend the application later.

Step 1: Confirm the N4 was served correctly

Before completing the L1, double-check the N4 that preceded it:

1. Confirm the N4 gave the tenant at least the minimum notice period required for the type of tenancy (generally 14 days for a monthly tenancy).
2. Confirm how the notice was served — in person, by mail, by email if permitted under the tenancy agreement, or by posting on the door — because the method of service affects when the notice period is deemed to have started and ended.
3. Confirm the amount claimed as unpaid on the N4 matches your rent ledger, since the L1 application will ask you to restate and update this figure as of the filing date.
4. Keep whatever proof of service you have, such as a certificate of service, a courier receipt, or notes about how and when the notice was delivered, since the LTB may ask about this at a hearing.

Step 2: Choose the right L1 application type

The LTB's L1 application generally has streams depending on the amount of arrears and whether you're also seeking other relief, such as compensation for use and occupation after a tenant has already vacated. If arrears are below a certain threshold and no other relief is sought, a simplified or expedited process may generally be available; larger or more complex arrears, or cases combined with other issues, generally proceed through the standard L1 process with a full hearing. Reviewing the difference between an L1 and L2 application is worth doing at this stage too, since filing the wrong application type for what you're actually seeking is a common source of delay.

It's also worth thinking through, before you file, whether your situation is purely about unpaid rent or whether other issues have accumulated alongside it, such as damage to the unit or repeated late payment even where the current balance happens to be paid up. An L1 is generally meant for the straightforward non-payment scenario; if you're also trying to address a pattern of problems beyond the current arrears, a different or additional application may be the more appropriate route, and mixing unrelated claims into a single L1 can sometimes slow the hearing down rather than speed it up.

Step 3: Complete and file the application

Work through the application form methodically:

1. Enter the tenant's and landlord's names and the rental unit address exactly as they appear on the tenancy agreement.
2. Enter the rent amount, the date the tenancy began, and the arrears figure, broken down by rental period if the form requests it.
3. Attach a copy of the N4 and any proof of service you're relying on.
4. Review the application for consistency between the figures on the N4, the ledger, and the application itself — mismatches between these documents are a frequent reason hearings run longer than necessary.
5. File through the LTB's online Tribunals Ontario Portal where available, or by mail or in person if filing on paper.

Step 4: Pay the filing fee and keep your receipt

The LTB charges a filing fee for an L1 application, which generally differs depending on whether you file online or on paper, and this fee generally changes from time to time, so it's worth confirming the current amount on the Tribunals Ontario website at the time you file rather than relying on an older figure. Keep your receipt and file confirmation, since you'll generally need the application number for any further correspondence with the Board and may be able to claim the fee back as part of the arrears sought if the tenant doesn't pay before a hearing.

What happens after you file

Once filed, the LTB generally serves the tenant with a copy of the application and notice of hearing, or in some eligible cases, processes certain arrears-only applications without a full hearing. If a hearing is scheduled, both you and the tenant will generally receive the date, time, and format (in person, by phone, or by video). Between filing and the hearing, the tenant may still pay the arrears in full, which can resolve the matter without a hearing being necessary, though you generally aren't required to withdraw the application unless you choose to.

If the tenant doesn't respond or doesn't pay, the process generally moves forward to a hearing or review where an adjudicator decides whether to issue an order. Keep your ledger updated right up to the hearing date, since the amount owing often changes between filing and the hearing itself.

During this waiting period, it's also generally worth keeping a simple log of any contact with the tenant, including any partial payments offered or received and any messages about a proposed repayment plan. The LTB may ask about communications that occurred after the application was filed, and having a clear, dated record makes it easier to explain exactly where things stood by the time of the hearing, rather than relying on memory for what was said and when.

Preparing for the hearing

Preparation for an L1 hearing is generally straightforward compared to other application types, but it still benefits from organization:

1. Bring an updated rent ledger current to the hearing date, with every payment and its date clearly listed.
2. Bring the original N4 and your proof of service.
3. Bring the lease and any amendments.
4. Be ready to explain any gaps, disputes, or partial payments the tenant may raise, since tenants sometimes dispute the figures at the hearing itself.
5. Review our LTB hearing guide and consider whether a paralegal or lawyer should represent you, particularly for larger arrears amounts or if the tenant has raised a counter-application.

Common mistakes that cause delay or rejection

Filing before the N4 notice period has expired is one of the most common reasons an L1 is rejected or delayed outright. Inconsistent figures between the N4, the ledger, and the application itself is another frequent problem, as is failing to keep proof of service for the N4, which can become an issue if the tenant disputes receiving it. Landlords also sometimes include deductions or charges on the application that aren't properly part of an L1 claim, such as damage costs that belong in a different application type, which can complicate or slow the hearing. Finally, letting the ledger go stale between filing and the hearing date — rather than updating it with every payment received in the interim — generally makes the hearing take longer and can create avoidable confusion about the amount actually owing.

Frequently Asked Questions

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Reviewed by Ryan J. Manilla, BA, JD

Legal Reviewer · Landlord Tenant Ontario