If you need to file something with Ontario's Landlord and Tenant Board (LTB) after the deadline for it has passed, you ask for permission on the Request to Extend Deadline. For landlords, the usual reason is a review request, an amendment request or an S3 motion that is now late. The form can only help where the law gives the LTB power to extend the deadline in question, so the first job is to check whether yours is one of them.
At a glance
| Filed by | Any party to an LTB proceeding: landlord, tenant or other |
| Timing | As soon as you see that a deadline is slipping or already gone |
| Its own deadline | None, but in most cases it must be filed alongside the late document |
| Filing route | Portal, LTB@ontario.ca, mail, courier, or a ServiceOntario centre |
| Fee | The fee schedule lists none; whatever you file late keeps its usual fee |
| What follows | The late request, motion or application itself |
The power to extend, and its limits
Under RTA s. 190(2), the LTB has power to lengthen or shorten its own time requirements, "other than the prescribed time requirements". The procedure sits in Rule 16 of the Rules of Procedure: make the request in writing, give your reasons, and file it the way the Rules direct (Rule 16.1). A granted request means the late document counts as received on the day you filed it (Rule 16.7).
According to the official instructions and the Rules, a landlord can seek more time for:
- asking for a review: the Request to Review an Order is due within 15 days for an order issued on or after July 1, 2026, or within 30 days for an older order (Rules 26.4–26.6; RTA s. 209(3));
- asking for an amendment: the Request to Amend an Order has a 30-day limit (Rule 24.1);
- an S3 motion to set aside an order that voided an eviction: 10 days from the order (RTA s. 74(9));
- a request to re-open an application that ended in a mediated settlement: one year from signing (Rule 13.12);
- deadlines in an LTB order or direction for written submissions or evidence; and
- the mobile home assignment application (s. 159(2)), and a landlord's request for review of a municipal work order (s. 226(1), 20 days).
Deadlines no request can move
O. Reg. 516/06, s. 56 lists time requirements the LTB has no power to extend. Those that matter most to a landlord:
- All notice periods for ending a tenancy. If your N4, N5 or N12 gave too little notice, an extension will not fix it.
- Most deadlines for filing an application. Only the handful that s. 190(1) expressly permits (AGI, s. 159(2), s. 226) can be extended. The instructions confirm that the filing time for an L4 or an L3 cannot be extended.
- The s. 206(6) window of 30 days for re-opening a consent order made under s. 206 after a missed payment.
- The 12-month rule and the 90 days' notice required for a rent increase.
A request aimed at anything on that list will be refused. Your options then are a new notice or some other route.
Timing rules for the request itself
- Pair it with the late document. Rule 16.2 says that, unless circumstances are exceptional, the extension request has to accompany the motion or request it concerns. This applies to S3 motions, set-aside motions by tenants, requests to amend or review, reviews of work orders, and the mobile-home application. Guideline 8 adds that the LTB will not consider a stand-alone extension for a review.
- Filed separately and granted? You will be given a date to file the document and pay any fee; if that date passes, the document is refused (Rule 16.3).
- No second chance. A refusal is final for that deadline, unless circumstances have since changed significantly (Rule 16.6).
- Check your arithmetic first. Under Rules 1.12–1.14, days are calendar days, you leave out the first day and count the last, and a deadline that falls on a weekend or LTB holiday rolls to the next business day. You may find you are still in time.
Worked example. An order issues on Friday, November 6, 2026, so the 15-day review period applies. Day 1 is Saturday, November 7, and day 15 is Saturday, November 21. Because that is a weekend, the deadline rolls to Monday, November 23, 2026 (assuming no LTB holiday intervenes). A review request filed on November 23 needs no extension at all.
Completing the form
Version 2026/07 is current.
- File details. Put the LTB file number at the top, then language and any accommodation.
- Requesting Party's Information. Your name, company, email, phone, mailing address and how you would like documents sent to you.
- Unit, Building or Complex. The rental unit's full address.
- "I am requesting that the LTB extend the deadline to..." Pick the matching box: review, amend, re-open a mediated application, set aside an ex parte order, or "other". An S3 motion belongs under "other", and you should name it.
- Reasons. Everything turns on this box. Work through the Rule 16.4 factors one at a time: - the length of the delay and the precise reason for it; - the prejudice to you if the request is refused, and to the other party if it is granted; - how that prejudice could be remedied; and - your good faith.
Use dates. Attach supporting documents, such as proof that the order was sent to the wrong address. A medical note should describe the condition, how it affected your ability to act, and when you expect to recover. On a late review, the LTB may also consider whether the review itself has merit (Guideline 8), so a strong underlying argument helps. 6. Signature. Check landlord, landlord representative or other, then sign and date. A legal representative adds a Law Society number and contact details.
Getting it to the LTB
If your file is on the Portal, use it. The other routes are email to LTB@ontario.ca, mail or courier (address: 15 Grosvenor Street, Ground Floor, Toronto, ON M7A 2G6), or a ServiceOntario centre that takes LTB documents. Under the Practice Direction on licensees, lawyers and paralegals must use the Portal when this request is filed with no other request attached. A late review request follows the review's own route, by email together with the online fee receipt. The instructions allow a letter or email instead of the form, provided it identifies the file, the deadline and the reasons, though the form is the recommended choice.
Why extension requests fail
- The deadline is prescribed. The LTB cannot extend notice periods, the s. 206(6) re-open window, or most deadlines for filing applications (O. Reg. 516/06, s. 56).
- The late document is missing. Rule 16.2 requires both together, and a bare request to extend a review deadline will not be considered.
- The explanation is thin. Being busy or not reading the order seldom outweighs the other side's interest in the matter being final.
- Nothing is attached. The form cautions that leaving out supporting documents may lead to a denial.
- Evidence was saved for a second attempt. You only get another request on a significant change in circumstances, and it cannot be used to supply reasons that were available the first time (Rule 16.6).
- You went by outdated instructions on review timing. The instructions, dated January 2025, still mention 30 days; for any order dated from July 1, 2026 onward, the deadline is 15 days (RTA s. 209(3)).
- More time passed. Each additional day lengthens the delay and undermines the good-faith factor.
The decision
A Member decides, frequently without inviting submissions from the other parties (Rule 16.5), and grants or denies the request with reasons. A grant means the late document is processed as filed on your filing date. A denial means the normal deadline governs and the late document will not be accepted.
Recent changes
On July 1, 2026, the review deadline, which is the one this form is most often used for, dropped from 30 days to 15 (Bill 60, RTA s. 209(3)). Rule 26.6 now refers to both review deadlines. The form itself is now version 2026/07, while the separate instructions still carry a January 2025 date.
Frequently asked questions
Does it cost anything to ask for an extension?
No fee for the request appears in the LTB's schedule, but a late document carries its normal fee, for example the $58 charge for a review.
My 30 days to file an L4 have run out. Can the LTB give me more time?
No. According to the instructions, the LTB has no power to extend the time for an L4 (s. 78) or an L3. Look at whether you can still ask to re-open the original application.
Is there a point after which it is simply too late?
No fixed cut-off exists. The Member balances how long the delay was and why, any prejudice, your good faith and other relevant factors. Long delays with no explanation fare worst.
Could the LTB give me more time on an N4 notice period?
No. Termination notice periods are prescribed, so they cannot be lengthened (O. Reg. 516/06, s. 56). The fix is to serve a new notice that is correct.