How Difficult Is It to Prove Depression in a Long-Term Disability or Injury Claim?

Published: May 2, 2022 | Last Reviewed: November 9, 2026

Depression can affect a person’s ability to concentrate, make decisions, maintain a regular schedule, and perform everyday tasks. When those symptoms prevent someone from working, long term disability benefits may provide important financial support while they receive treatment.

Although depression can qualify as a disability, a diagnosis alone does not automatically establish entitlement to long-term disability benefits. The claimant must meet the definition of disability in their insurance policy and provide evidence explaining how their symptoms affect their ability to work.

There can be practical and evidentiary obstacles to making a disability claim based on depression or another mental illness. This article explores those difficulties and how a long-term disability lawyer in Toronto or elsewhere in Ontario can help.

Key Takeaways

• Depression may qualify for LTD benefits when its effects meet the policy’s definition of disability.
• Medical evidence should explain how symptoms interfere with specific work duties.
• Treatment records, symptom journals, and observations from family or friends can help support a claim.
• A disability lawyer can review the policy, identify gaps in the evidence, and help challenge a denial or termination of benefits.

Practical Difficulties in Proving Depression

According to the Centre for Addiction and Mental Health, common symptoms of depression include:

• Feelings of sadness, guilt, worthlessness, helplessness, or hopelessness
• Loss of interest or pleasure in activities previously enjoyed
• Changes in weight or appetite
• Sleep disturbances
• Low energy or fatigue
• Poor concentration or difficulty making decisions

These symptoms can significantly affect work and daily life. However, they may not be immediately apparent to coworkers, employers, or other outside observers. Unlike a broken bone or a visible injury, depression does not always have outward signs that others readily recognize.

That does not mean its effects cannot be documented. Medical records, clinical assessments, and observations from people who know the claimant can help explain changes in their functioning over time.

The symptoms of depression can also be misinterpreted. Low energy and poor concentration may be mistaken for a lack of effort, while changes in appetite or personal routines may be misunderstood. These reactions can contribute to stigma, leaving the person feeling isolated and making it harder to discuss their difficulties.

In addition, depression itself may discourage someone from seeking medical care or pursuing a disability claim. Fatigue, difficulty making decisions, and feelings of hopelessness can make arranging appointments, completing forms, and responding to an insurer particularly challenging.

How Does Your Policy’s Definition of Disability Affect a Depression Claim?

Proving entitlement involves more than establishing a diagnosis of depression. The evidence must show that the condition prevents you from working to the extent required by your insurance policy. Disability definitions vary between policies, making it important to review the terms of your coverage.

For example, a policy may initially assess whether the claimant can perform the essential duties of their own occupation.

After a specified period, the definition may change to consider their ability to perform another suitable occupation. Reviewing the “own occupation” clause in LTD insurance can help clarify what evidence is needed at different stages of a claim.

Some policies also contain a mental illness limitation clause that restricts how long benefits are payable for certain mental health conditions, including depression. Where such a clause applies, benefits may end after a specified period unless you meet a policy exception. Review the wording carefully to understand any limits and exceptions; remember a disability lawyer can help assess how the clause applies to your claim

What Evidence Helps Prove Depression in a Disability Claim?

Because depression’s symptoms can be difficult for others to recognize, compiling evidence of their effect on daily activities and work requires careful attention.

The following steps may help support a depression-based disability claim:

• Keep a journal of your symptoms. Record how well you are sleeping, changes in your appetite or routines, and difficulties with energy, concentration, or decision-making. Include specific examples of tasks you struggle to complete and how often those difficulties occur.
• Discuss your symptoms with your treating healthcare provider. Explain persistent symptoms at follow-up appointments, including whether treatment is helping and whether you are experiencing side effects. This helps create a medical record of your condition over time.
• Ask friends or family to record relevant observations. People who know you may notice changes in your routines, behaviour, or ability to manage everyday responsibilities. Their observations can supplement the medical evidence.

Your supporting evidence should also connect your symptoms to your work duties. For example, poor concentration may interfere with completing tasks accurately, fatigue may prevent you from maintaining a regular schedule, and difficulty making decisions may affect responsibilities that require judgment.

Ask your treating healthcare provider to document these limitations and explain how they affect your ability to work. A description of your job duties can help them understand the demands of your occupation when preparing a report.

Continuing appropriate treatment is also important. If symptoms, medication side effects, cost, or difficulties accessing care prevent you from attending appointments or following a treatment plan, discuss those barriers with your healthcare provider and ensure they are documented. An unexplained gap in treatment may raise questions during the insurer’s assessment.

It can also be helpful to consult a disability lawyer early in the process. A lawyer can interpret the applicable policy, identify missing evidence, and help obtain further medical reports or expert opinions where appropriate.

What Can You Do If the Insurer Disputes Your Depression Claim?

An insurer may disagree that the evidence establishes disability under the policy. It may request additional medical information, question whether the claimant’s limitations prevent them from working, or conclude that they are able to return to work.

In some cases, an insurer may question whether a claimant is exaggerating or intentionally misrepresenting their symptoms, sometimes referred to as “malingering.” A disagreement about the severity of depression does not, by itself, establish malingering. Detailed treatment records and evidence of how symptoms affect work and daily life can help address those concerns.

Depending on the policy’s terms, the insurer may also require an assessment by a healthcare professional who has not previously treated the claimant. That examiner may reach a different conclusion from the treating healthcare provider about the claimant’s symptoms, limitations, or ability to work.

A differing opinion does not necessarily resolve the claim. It is important to consider whether the assessment addresses the claimant’s actual job duties, accounts for the treatment history, and explains the conclusions reached.

A disability lawyer can review the insurer’s reasons alongside the medical evidence and identify issues that may need to be addressed. Further records or a report from the treating healthcare provider may help clarify information that was missing or misunderstood.

If your LTD benefits are denied or terminated, review the decision letter carefully and seek advice promptly. Your policy may set a deadline for an internal appeal, and there is a separate legal deadline for starting a court action. In Ontario, the basic limitation period under the Limitations Act, 2002 is generally two years from the date the claim was discovered. When that clock starts can depend on the facts, including how the insurer communicated its decision, so it should not be assumed that an internal appeal pauses the court deadline.

Getting legal advice early can help protect your options on both fronts.

Speak With Our Disability Lawyers

Proving that depression has resulted in a disability can be challenging, particularly when symptoms make the claims process itself difficult to manage. Clear medical records, evidence connecting symptoms to work duties, and an understanding of the policy’s requirements can help build a stronger claim.

Preszler Injury Lawyers assists clients with depression and other mental health conditions in pursuing disability insurance benefits. Our lawyers can review your policy, help identify the evidence needed to support your claim, and advise you on your options if benefits have been denied or terminated.

If you or a loved one is unable to work because of depression, contact our lawyers for a free initial consultation. You can reach us by text, chat, online form, email, or phone.

We’re here to help.