Skip to content
Contract Law Ontario

Commercial Leases

Commercial Lease Renewals and Options to Renew in Ontario

How renewal options are typically structured, when they need to be exercised, and what to negotiate ahead of time.

FreeConsultation Available
BA, JDSite Managed by Ryan Manilla
15+ yrsAt Ontario Bar
Published April 29, 2026Updated August 11, 2026Legally reviewed by Ryan J. Manilla, BA, JD

Key Takeaways

  • A renewal option gives a tenant the right, but generally not the obligation, to extend the lease — without one, the lease simply ends at the end of its term.
  • Renewal rent can be pre-agreed, formula-based, or tied to fair market value, and each approach carries very different levels of predictability.
  • Courts have generally required strict compliance with a renewal option’s notice window and delivery method, so a late or improperly sent notice can be treated as ineffective.
  • Missing the renewal deadline doesn’t always end a tenant’s options, but relief is granted only in narrow circumstances and shouldn’t be relied on in advance.
  • Negotiating clear renewal terms at the outset — when the tenant typically has the most leverage — protects far more value than revisiting it near the end of the term.
  • Without a formal renewal option, the landlord can offer whatever terms the market supports, including declining to renew at all.

What a renewal option actually is

A renewal option is a clause giving a commercial tenant the right, but generally not the obligation, to extend a lease for an additional term once the original term ends. It’s one of the most valuable clauses a tenant can negotiate into a commercial lease, because it provides security against being forced out of a location the business has invested in — building a customer base, a reputation, or specialized fit-out — while still leaving the tenant free to walk away if the space no longer makes sense.

It’s important to understand that a renewal option is not the same as an automatic renewal. Where a lease is genuinely silent on renewal, it simply ends at the end of its term, and the tenant has no special right to stay beyond whatever the landlord is willing to offer at that point. A renewal option changes that by giving the tenant a defined, enforceable right — provided the tenant follows the specific steps the option requires to exercise it.

Renewal options can also be structured as a single additional term or as a series of successive options — for example, two separate five-year renewal rights rather than one ten-year right. A series of shorter options gives the tenant more flexibility to reassess the space at each renewal point, while a single longer option offers more certainty upfront. Which structure makes more sense depends heavily on how confident the business is about its long-term space needs at the time the original lease is signed.

It’s also worth thinking about how a renewal option interacts with financing. Lenders evaluating a business, or a prospective buyer conducting due diligence, will often look closely at how much security of tenure the lease actually provides. A strong, clearly drafted renewal option can materially support a business’s valuation and its ability to secure financing, since it reduces the risk that the business could be displaced from a location its revenue depends on.

How renewal rent is typically set

Renewal options generally specify how rent for the renewal term will be determined, and the approach varies. Some options set a specific, pre-agreed rent or a defined formula (such as the prior rent plus a fixed percentage increase) for the renewal period, which gives both sides complete certainty from the moment the lease is signed. Others set rent at “fair market rent” as of the renewal date, sometimes with a mechanism for determining that figure if the parties can’t agree — such as an appraisal process or arbitration.

A fair-market-rent renewal option can be far less predictable than it sounds, particularly in a rapidly changing rental market. Tenants who negotiate this kind of option are effectively deferring the real cost of renewal to a future negotiation, informed by market conditions that may look very different years later. Where possible, understanding exactly how “fair market rent” would be determined — and by whom — is worth clarifying at the outset, rather than discovering the mechanism only once a dispute over the number arises.

Some renewal options combine both approaches, setting a floor and ceiling around fair market rent so the renewal rent can’t fall below a certain amount or rise above another, regardless of what the market does at the time. This kind of collar can offer a useful middle ground, giving both landlord and tenant some protection against an extreme market swing in either direction by the time the renewal date actually arrives.

Worth knowing

If a renewal option relies on an appraisal or arbitration process to set rent, confirm who selects the appraiser or arbitrator, how costs are shared, and what happens if the two sides’ appraisals are far apart.

Exercising the option correctly

Renewal options almost always require the tenant to give written notice of their intention to renew within a specific window before the current term ends — commonly somewhere between three and twelve months, depending on the lease. This notice generally needs to be unconditional and delivered in the manner the lease specifies, whether that’s by registered mail, courier, or another defined method.

Courts have generally required strict compliance with the mechanics of a renewal option, meaning a notice that’s a few days late, sent to the wrong address, or missing a required element can, in some circumstances, be treated as ineffective — even where the tenant’s intention to renew was clear. Given how consequential this can be, treating the renewal deadline as a hard, non-negotiable date on the calendar — rather than something to handle whenever it becomes convenient — is one of the simplest ways to protect a valuable renewal right.

It’s also worth checking whether the lease requires the tenant to be in good standing — no outstanding defaults, for example — at the time the option is exercised. A tenant with a history of late payments could find an otherwise valid renewal notice challenged on the basis that a good-standing condition wasn’t satisfied, which is one more reason to keep the underlying lease obligations in good order as a renewal date approaches.

What if you miss the renewal window

If a renewal deadline is missed, the tenant’s options narrow considerably, but they aren’t always gone entirely. Some leases include a grace period, and Ontario courts have sometimes granted relief against forfeiture in narrow, fact-specific circumstances where the tenant’s failure was minor and the landlord suffered no real prejudice — though this is far from guaranteed, and it’s not something to plan around in advance.

The more reliable approach is to open a conversation with the landlord as soon as a missed deadline is discovered. Many landlords, particularly with a tenant in good standing and no urgent plan to re-lease the space, are willing to negotiate a new lease or a short extension even after a formal option has technically lapsed — but this depends entirely on the landlord’s own plans and goodwill, not on any guaranteed legal right.

If the deadline was missed because of a genuine miscommunication or administrative error rather than a change of heart, documenting exactly what happened and raising it with the landlord promptly — rather than waiting and hoping the issue resolves itself — puts the tenant in the best possible position, whether that leads to the landlord honouring the option as a courtesy or to a fresh negotiation on updated terms.

Negotiating renewal terms upfront

Because so much rides on the wording of a renewal option, it’s worth negotiating this clause carefully at the outset of the original lease, when the tenant typically has the most leverage. Consider negotiating for more than one renewal option where the business model justifies long-term certainty, a clearly defined rent formula rather than an open-ended fair-market mechanism, and a realistic notice window that fits how far in advance the business actually plans.

It’s also worth confirming whether the renewal option survives an assignment of the lease. If the business is ever sold, or the lease transferred to a new operator, a renewal option that doesn’t clearly transfer with the lease can become a significant gap in value for a buyer — and a point worth clarifying well before any sale conversation begins.

Finally, keep a clear paper trail of everything related to the renewal — the original lease with the option clause, any correspondence about exercising it, and confirmation of delivery. Renewal disputes often come down to exactly this kind of documentation, and a tenant who can produce a clean record of having followed every required step is in a far stronger position than one relying on memory of what was sent and when.

Renewing without a formal option

Where a lease doesn’t include a renewal option at all, a tenant who wants to stay simply needs to negotiate a new lease or an extension before the current term ends, with no special legal entitlement to specific terms. Starting that conversation early — well before the term ends — gives both sides time to negotiate reasonably, rather than negotiating from a position of urgency in the final weeks of the lease.

Without a formal option, a tenant also loses the leverage that comes from a defined, contractual right — the landlord is free to offer whatever terms the market supports, ask for significant increases, or decline to renew at all in favour of a different tenant. This is often the clearest illustration of why negotiating a renewal option at the outset, when a tenant typically has the most bargaining power, tends to be far more effective than hoping for goodwill once the original term is running out.

If a business anticipates wanting to stay in a location long-term, it’s often worth raising the idea of a renewal option even after the original lease has been signed, particularly if the relationship with the landlord has been positive. A landlord isn’t obligated to agree, but a mid-term amendment adding a renewal right is not unusual where both sides see value in a longer-term relationship. For broader context on how commercial lease disputes typically arise and get resolved, see our guide to commercial lease disputes in Ontario. Whatever the current state of your lease, treating renewal planning as an ongoing part of managing the tenancy, rather than a last-minute task, tends to produce far better outcomes.

Legally reviewed by Ryan J. Manilla, BA, JDGeneral legal information, not personalized legal advice.Read our review policy →

More in Commercial Leases

Continue reading

Commercial Leases

Commercial Lease Agreements in Ontario: Key Clauses for Businesses

The clauses that matter most in an Ontario commercial lease, from rent structure to repair obligations.

September 2, 2026
Commercial Leases

Commercial Lease Disputes in Ontario: Rent, Repairs, Default and Termination

The most common sources of commercial lease disputes, and how they're typically addressed.

August 11, 2026
Commercial Leases

Personal Guarantees in Commercial Leases: What Ontario Business Owners Should Know

Explains why landlords require personal guarantees from owners of small/new corporate tenants, the difference between limited and unlimited guarantees, negotiating caps or sunset clauses, and what happens to the guarantor on default.

October 6, 2026
Commercial Leases

Triple Net (NNN) Leases in Ontario Explained

Breaks down what “net, net, net” means (base rent plus property tax, insurance, and CAM), how NNN differs from gross/modified gross leases, how CAM reconciliation works, and what to check before signing.

October 8, 2026
Commercial Leases

Assigning or Subletting a Commercial Lease in Ontario

Covers the difference between assignment and subletting, why commercial leases can validly require “sole discretion” landlord consent, change-of-control clauses, and the original tenant’s lingering liability after a transfer.

October 10, 2026
Commercial Leases

Ending a Commercial Lease Early in Ontario

Explains early termination/break clauses, negotiating a surrender, using assignment or subletting as an alternative exit, the financial risk of simply walking away, and demolition/relocation clauses.

October 12, 2026
Commercial Leases

Rent Escalation Clauses in Ontario Commercial Leases

Explains how fixed-percentage, CPI-indexed, and fair-market-value rent escalation clauses work in Ontario commercial leases, how they’re negotiated, and how tenants can budget for them.

October 14, 2026
Commercial Leases

Leasehold Improvements in Ontario: Who Pays and Who Owns Them?

Covers tenant allowances, who owns fixtures and improvements during and after a commercial lease, make-good/restoration obligations, and the general tax treatment of leasehold improvements in Ontario.

October 16, 2026
Commercial Leases

Commercial Tenant Eviction and Landlord Remedies in Ontario

Explains why commercial tenancies fall outside the Landlord and Tenant Board process, and how distress, re-entry/forfeiture, and suing for arrears work as faster commercial landlord remedies under Ontario law.

October 18, 2026
Commercial Leases

Co-Tenancy Clauses in Ontario Commercial Leases

Explains clauses letting a tenant reduce rent or terminate if an anchor tenant or minimum occupancy level isn’t maintained, why landlords resist them, and how they’re structured/negotiated.

November 12, 2026
Commercial Leases

Exclusivity Clauses in Ontario Commercial Leases

Covers clauses barring a landlord from leasing to a competing business, how scope and geographic radius are defined, and remedies for breach.

November 14, 2026
Commercial Leases

Insurance Requirements in Ontario Commercial Leases

Covers CGL, tenant contents/business interruption, and landlord building insurance, minimum coverage negotiation, additional-insured status, and proof-of-insurance obligations.

November 16, 2026
Commercial Leases

Retail vs. Office vs. Industrial Leases in Ontario: Key Differences

Compares how lease clauses differ by property type — percentage rent/CAM in retail, build-out allowances in office, loading/zoning/environmental issues in industrial.

November 18, 2026
Commercial Leases

Negotiating a Commercial Lease in Ontario: Key Points

Practical negotiation points — base vs. additional rent, renewal options, assignment flexibility, guarantee caps, exclusivity, termination rights — and why the first draft favours the landlord.

November 20, 2026
Commercial Leases

Letters of Intent for Commercial Leases in Ontario

Explains how an LOI frames the proposed rent, term, and conditions before a formal commercial lease is drafted in Ontario, and which of its clauses are typically binding.

November 22, 2026
Commercial Leases

Percentage Rent Clauses in Ontario Commercial Leases

Explains how percentage rent adds a share of gross sales above a breakpoint to base rent in Ontario retail leases, and the reporting and audit rights landlords typically require.

November 24, 2026
Commercial Leases

Default and Cure Periods in Ontario Commercial Leases

Explains what counts as a monetary or non-monetary default under an Ontario commercial lease, typical notice-and-cure structures, and the consequences of an uncured default.

November 26, 2026
Commercial Leases

Estoppel Certificates in Ontario Commercial Leases

Explains what an estoppel certificate confirms, why landlords’ lenders and purchasers request them, and what a tenant should check before signing one.

November 28, 2026
Commercial Leases

Environmental Clauses in Ontario Commercial Leases

Explains why Ontario commercial leases include environmental compliance and indemnity clauses, tenant obligations around spills and assessments, and how the Environmental Protection Act framework interacts with the lease.

November 30, 2026

FAQ

Frequently asked questions

What is a renewal option in a commercial lease?+

A renewal option is a clause giving the tenant the right, but generally not the obligation, to extend the lease for an additional term once the original term ends. It’s different from an automatic renewal — the tenant has to actively exercise it by following whatever steps the lease sets out.

How much notice do I need to give to renew a commercial lease in Ontario?+

This depends entirely on the specific lease, though the window is commonly somewhere between three and twelve months before the term ends. The notice generally needs to be unconditional and delivered in the exact manner the lease specifies, so it’s worth confirming the precise requirements well ahead of the deadline.

What happens if I miss the deadline to exercise my renewal option?+

Options narrow considerably, but they aren’t always gone entirely. Some leases include a grace period, and Ontario courts have occasionally granted relief against forfeiture in narrow, fact-specific circumstances, though this is far from guaranteed — the more reliable approach is raising the missed deadline with the landlord as soon as it’s discovered.

How is rent calculated during a lease renewal?+

It depends on how the renewal option was drafted. Some options set a specific pre-agreed rent or a defined formula, such as the prior rent plus a fixed percentage increase, while others set rent at fair market value as of the renewal date, sometimes with an appraisal or arbitration mechanism if the parties can’t agree.

What is fair market rent in a lease renewal?+

Fair market rent is a renewal rent structure tied to prevailing market conditions at the time of renewal, rather than a pre-set figure agreed when the original lease was signed. It can be far less predictable than it sounds, particularly in a rapidly changing rental market, so it’s worth clarifying exactly how it would be determined, and by whom, before relying on it.

Can a landlord refuse to renew a commercial lease if there’s a renewal option?+

Generally no, provided the tenant has validly exercised the option by following the lease’s required steps and is in good standing under the lease. A renewal option is an enforceable contractual right, not something the landlord can decline once it’s been properly exercised according to its terms.

Do I need a lawyer to exercise a renewal option?+

It isn’t a legal requirement, but given how strictly courts have interpreted renewal notice requirements, having the notice and its delivery reviewed before the deadline can help confirm it actually complies with what the lease requires. A notice that’s technically deficient can, in some circumstances, be treated as ineffective even where the tenant’s intention was clear.

Is a renewal option automatically transferred if I sell my business?+

Not necessarily — this depends on how the renewal option and any assignment provisions are worded in the lease. A renewal option that doesn’t clearly transfer with an assignment can become a significant gap in value for a buyer, so it’s worth confirming this point well before any sale conversation begins.

What’s the difference between a renewal option and an automatic renewal?+

A renewal option requires the tenant to take an active step — giving proper notice within a defined window — to extend the lease, and the tenant can simply let it lapse if they don’t want to stay. An automatic renewal, where it exists, extends the lease on its own unless someone affirmatively opts out, though automatic renewals are less common in commercial leasing.

Can I negotiate a renewal option after the lease has already been signed?+

Sometimes. A landlord isn’t obligated to add one, but a mid-term amendment adding a renewal right isn’t unusual where the landlord-tenant relationship has been positive and both sides see value in a longer-term arrangement. It’s generally easier to negotiate before signing, but it’s still worth raising later if circumstances support it.

What if my commercial lease doesn’t have a renewal option at all?+

Without a renewal option, the lease simply ends at the end of its term, and staying on requires negotiating a new lease or extension with no special legal entitlement to specific terms. Starting that conversation early, rather than waiting until the final weeks of the term, generally produces a better outcome for the tenant.

Does being behind on rent affect my ability to renew my lease?+

It can. Many renewal options require the tenant to be in good standing, with no outstanding defaults, at the time the option is exercised, and a history of late payments could give a landlord grounds to challenge an otherwise valid renewal notice. Keeping lease obligations current as a renewal date approaches helps protect the renewal right itself.

Understand your agreement. Know your next step.

Ontario-wide, plain-English contract law information — built to help you make sense of your situation before you decide what to do next.

Free Consultation

Speak with a contract lawyer, free of charge

Tell us briefly what’s going on and we’ll be in touch to set up a free consultation about your contract situation.