Sun Life Long-Term Disability Claims: What Ontario Claimants Should Know
Sun Life administers both group and individual disability claims in Canada. This page explains what is specific to dealing with Sun Life — alongside links to this site’s general guides for each claim stage.
It is an independent claimant-side guide, not a copy of Sun Life’s own materials. Your specific plan documents or individual policy control — not a general description of how Sun Life works.
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Group LTD vs. individual policies through Sun Life
Sun Life administers large employer group LTD plans and individually purchased disability policies. The documents, contacts, and submission paths differ between those product types.
Even among group plans, wording and process can vary by the specific employer’s plan. A Sun Life-administered plan is not one uniform product. The claimant’s specific plan booklet or individual policy controls.
For the individual-policy analytical framework — occupation- specific wording, actual duties, residual benefits — see the individual disability insurance claims page. The sections below focus primarily on group LTD claims, with individual notes called out where Sun Life’s Canadian materials treat that pathway separately.
How Sun Life’s claim process works (group LTD)
For employer group disability claims, Sun Life’s official Canadian claim-submission materials describe a package that typically includes a plan member statement (completed by the claimant), a medical statement from the attending physician, and a plan sponsor statement from the employer. Some plans use custom forms provided by the employer rather than Sun Life’s generic versions.
Sun Life states that its review can take up to 10 business days for a long-term disability claim once the needed statements are in hand (and up to 5 business days for short-term disability). That figure is Sun Life’s published initial-review window — not a guarantee that every claim will be decided within that period, and not a substitute for any different timing in your own plan booklet.
The specific plan documents from the claimant’s employer control the actual requirements. Different employer plans administered by Sun Life can have different wording and processes. This section is a general description based on Sun Life’s public Canadian materials — not a substitute for the claimant’s own plan booklet.
Identifying your situation with Sun Life
Use the stage that fits your file. Each linked guide covers the general framework; this page does not rebuild those frameworks in full.
Initial denial
Sun Life has refused benefits before they were paid. The general response framework is on the denied LTD claim page.
Termination of previously approved benefits
Sun Life paid benefits and then stopped them. Focus on what Sun Life says changed — the general termination framework is on the terminated benefits page.
Change-of-definition review or termination
The plan may shift how disability is defined after a policy-specific period. Timing and wording vary by employer plan — confirm from your booklet.
Return-to-work position from Sun Life
Sun Life takes the position that you can return to work in some capacity. The general return-to-work dispute framework is on the return-to-work page.
How to read a Sun Life denial or termination letter
Letter wording varies. At a general level — consistent with how denial and termination letters are discussed elsewhere on this site — look for:
- The stated reason for the denial or termination
- The medical or vocational basis cited
- The policy or plan definition of disability relied upon
- Any appeal process and deadline described in the letter itself
The letter itself is the starting point for any appeal or legal review. Do not rely on a generic description of “how Sun Life letters look.”
If you decide to appeal a Sun Life decision
If you decide to appeal a Sun Life denial or termination, the general mechanics of an internal appeal — what to submit, how deadlines relate to legal dates, and what outcomes are possible — are explained on the LTD appeal process page.
What is specific to Sun Life depends on whether the claim is under a group plan or an individually purchased policy, and on the letter and plan or policy materials you received. Do not assume every Sun Life claim uses the same internal review structure.
For individually purchased policies submitted through an advisor, Sun Life’s official Canadian claim-submission page states that if a claim is not approved, the decision letter explains next steps and that you will have 90 days to send new information. That published figure applies to the advisor-purchased pathway described on that page — confirm any deadline from your own letter and policy materials, and do not treat it as universal for every Sun Life group plan.
General Ontario legal information (not a description of this insurer’s current forms or internal structure): an insurer’s appeal process and the deadline for starting a legal proceeding are not necessarily the same thing. Completing an internal appeal should not be assumed to pause, preserve, or extend a limitation period, and claimants should not assume that every internal appeal level must be exhausted before a court proceeding can be considered. The applicable dates can depend on the policy, the correspondence, the claim history, and whether legal proceedings had become an appropriate means of seeking a remedy.
If you decide to pursue litigation against Sun Life
Litigation moves the dispute out of Sun Life’s internal process and into court. The general lawsuit process — pleadings, document production, discovery, mediation, and what happens to benefits while a case is ongoing — is explained on the LTD lawsuit page rather than repeated here.
What an LTD lawsuit involves →
For the appeal-versus-litigation decision framework, see the denied LTD claim page.
Evidence that may matter in a Sun Life claim
The same evidence principles that apply to other LTD disputes apply to Sun Life claims: medical and functional proof, occupational demands, and a clear record of what Sun Life relied on. This section does not repeat those guides in full.
Medical and functional evidence
Records that speak to sustainable work capacity and restrictions — not diagnosis alone.
Occupational demands
An honest description of the job’s actual requirements, compared against Sun Life’s stated capacity conclusions.
Claim history and correspondence
Prior approvals, reviews, forms submitted, and Sun Life’s letters — especially what it says changed if benefits were previously paid.
What a lawyer reviews
A free case review looks at the Sun Life-specific documents and deadlines for your file — group plan or individual policy.
- The specific plan documents or individual policy
- Sun Life’s stated reason for denial or termination
- The claim history and any prior correspondence
- Applicable deadlines for an internal appeal
- Applicable deadlines for starting legal proceedings
Frequently asked questions
- How long does Sun Life take to process an LTD claim?
- Sun Life’s official Canadian claim-submission page states that its review can take up to 10 business days for a long-term disability claim (and up to 5 business days for short-term disability). That is Sun Life’s stated initial review window after it has the needed statements — not a guarantee for every file, and not a substitute for the timelines in your own plan materials.
- What if Sun Life asks me to attend an independent medical examination?
- Insurers sometimes request independent examinations as part of assessing a claim. Whether a particular request is required, what happens if you do not attend, and how the results should be weighed depend on the plan or policy wording and the circumstances. Those questions belong in a file-specific review.
- Does Sun Life’s process differ for group vs. individual policies?
- Yes. Group LTD claims through an employer plan and individually purchased disability policies involve different documents, contacts, and submission paths. Sun Life’s own Canadian materials describe employer-plan and advisor-purchased pathways separately. Your specific plan booklet or individual policy controls.
- What should I do if Sun Life says my benefits are ending at 24 months?
- Many group LTD plans change how disability is defined around a policy-specific date — often near 24 months, but not in every contract. Confirm the date and definition in your plan documents, then review the change-of-definition guide for the general framework. Do not assume every Sun Life plan uses the same timing.
- Can I get help from a lawyer before Sun Life makes its initial decision?
- Yes. Early review can help organize medical and occupational evidence and clarify what your plan or policy requires before a decision letter arrives. A free case review can identify whether that timing makes sense for your file.
- What if I’ve already started an internal appeal with Sun Life myself?
- Starting an appeal yourself does not prevent a lawyer from reviewing the file afterward. Bring the denial or termination letter, what you have already submitted, and any deadline language from the correspondence so the appeal and any separate legal dates can be assessed together.
Sources & citations
- Sun Life Canada — Submit a disability insurance claim — Official Canadian claim-submission page describing employer-plan and advisor-purchased pathways, claim statements, and stated review timelines (up to 5 business days for STD; up to 10 business days for LTD). View source
Canadian domain (sunlife.ca) only. Do not confuse with Sun Life U.S. materials.
- Sun Life Canada — Disability insurance (individual products) — Official Canadian individual disability insurance product page, confirming Sun Life offers personally purchased disability coverage in Canada distinct from employer group plans. View source
Used to support group vs. individual separation — not as a claim-process manual.
- Limitations Act, 2002 — Limitations Act, 2002, S.O. 2002, c. 24, Sched. B, ss. 4, 5, 15 and 22 (basic limitation period, discoverability, ultimate limitation, and agreements). View source
General Ontario statutory framework. Application to a particular LTD file is fact-specific. Cited as general Ontario limitation law because Sun Life was a party — not as authority for Sun Life’s current forms, deadlines, or internal appeal structure.
- Kassburg v. Sun Life Assurance Company of Canada — 2014 ONCA 922 (Court of Appeal for Ontario). Appeal and cross-appeal dismissed; contractual one-year provision not enforceable on the wording and documents before the Court; ambiguity and s. 22 business-agreement analysis addressed. View source
Does not establish current insurer forms or a universal contractual rule. Cited as general Ontario limitation law because Sun Life was a party — not as authority for Sun Life’s current forms, deadlines, or internal appeal structure.
- Thompson v. Sun Life Assurance Company of Canada — 2015 ONCA 162 (Court of Appeal for Ontario). Appeal dismissed; motion judge had not completed the s. 22 analysis required to enforce a contractual one-year provision; appeal dismissed on a separate policy-eligibility ground. View source
Not a claimant victory on limitation; not a universal start-date rule. Cited as general Ontario limitation law because Sun Life was a party — not as authority for Sun Life’s current forms, deadlines, or internal appeal structure.
- Clarke v. Sun Life Assurance Co. of Canada — 2020 ONCA 11 (Court of Appeal for Ontario). Appeal allowed in part; summary-judgment determination set aside; fuller factual record required for appropriate-means discoverability and the informal appeal process; remitted rather than finally decided on limitation. View source
Does not mean an informal appeal always suspends a limitation period. Cited as general Ontario limitation law because Sun Life was a party — not as authority for Sun Life’s current forms, deadlines, or internal appeal structure.
- Contingency fee disclosure — No fee unless we recover compensation for you. Our fee is up to 33% of the amount recovered, confirmed in writing before we begin work. A written contingency fee agreement is required under Ontario rules before work begins.
Related reading
- LTD claims guideA plain-language guide to how long-term disability claims work in Ontario — group and individual policies, own-occupation and any-occupation periods, denials, terminations, and when legal advice may help.
- Denied LTD claimA denial letter is not the final word. Next steps depend on the reason given.
- Terminated benefitsBenefits may stop after a review, surveillance, return-to-work assessment, or definition change.
- Change of definitionMany Ontario LTD policies shift disability definitions around the 24-month mark — timing depends on the policy.
- Return-to-work disputesIME, surveillance, and vocational assessments used to argue you can work can often be challenged.
- LTD appealWhat the internal appeal process involves — submissions, stages, deadlines, and outcomes.
- LTD lawsuitWhat litigation against an LTD insurer actually involves — steps, evidence, costs, and timelines.
- Individual disability policiesPersonally purchased disability policies often turn on precise wording and actual occupational duties.
- Mental health claimsDepression, anxiety, PTSD, burnout, and other mental health conditions in LTD claims.
- Chronic pain & invisible disabilitiesChronic pain and invisible disabilities — including when WSIB and private LTD insurance both arise.
- FeesLearn how contingency fees, a free case review and disbursements work for Ontario long-term disability claims. Our fee is up to 33% of the amount recovered.
- AboutLearn about Ontario Long-Term Disability Lawyers, our insurer-side experience and how our legal team helps with denied or terminated disability benefits across Ontario.