Long-Term Disability

Insurance that replaces a portion of your income when a serious illness or injury prevents you from working for an extended period — often months or years.

Long-term disability (LTD) insurance kicks in after short-term disability benefits are exhausted, typically after 3–6 months of inability to work. LTD plans generally replace 50–70% of your pre-disability income and can pay benefits for several years, until a specified age (often 65), or for life depending on the plan. LTD is designed to protect against catastrophic income loss from conditions like cancer, serious accidents, or chronic illness that prevent someone from returning to work.

Like short-term disability, LTD is often employer-provided as a group benefit, though individual policies can be purchased privately. The definition of 'disability' is critical: 'own occupation' policies pay if you cannot perform your specific job, while 'any occupation' policies only pay if you cannot work any job at all. For knowledge workers and skilled professionals, own-occupation coverage is significantly more valuable.

The income gap created by LTD is significant and widely underestimated. Most plans replace 60% of pre-disability base salary — meaning an employee earning $150,000 receives $90,000/year in benefits. But that amount may be taxable if the employer paid the premium, reducing the after-tax benefit further. Because the benefit is calculated on base salary only, bonuses and variable compensation are excluded from the calculation. A highly compensated employee whose total cash included substantial bonus may face a steeper effective income cut than the stated 60% replacement ratio suggests.

LTD policies contain a critical structural feature that most employees never read: the definition of disability changes after 24 months for the majority of group plans. For the first two years, benefits pay if you cannot perform your own occupation. After that point, most group LTD policies shift to an 'any occupation' standard — meaning you are considered disabled only if you cannot perform any job for which you are reasonably qualified. A knowledge worker who cannot return to their specific role but could theoretically perform light desk work may lose benefits at month 25. Individual LTD policies purchased privately typically maintain own-occupation coverage for the full benefit period — a meaningful and often underappreciated advantage.

Own Occupation vs. Any Occupation

  • Own occupation: you are disabled if you cannot perform the material duties of your specific job — the more protective standard for skilled professionals.
  • Any occupation: you are disabled only if you cannot perform any gainful work for which you are qualified — a substantially higher bar to clear.
  • Many group LTD plans start as own occupation for the first 24 months, then automatically switch to any occupation — the transition can cut off benefits for partially recovered workers.
  • Individual LTD policies purchased privately typically maintain own-occupation standards for the full benefit period, which can span decades.
  • The definition matters most in partial disability situations: someone who can work reduced hours or at a lower-paying role may qualify under own occupation but not any occupation.
  • For physicians, attorneys, and high-earning specialists, own-occupation individual policies are standard practice precisely because of this distinction.

What LTD Does Not Cover

  • LTD benefits are calculated on base salary only — bonuses, commissions, and variable pay are typically excluded from the benefit calculation.
  • If your employer paid the premium, the benefit is taxable income — the effective replacement rate is lower than the stated 60–70%.
  • LTD has an elimination period — typically 90–180 days after disability begins — during which STD coverage applies and LTD has not yet triggered.
  • Coverage ends when you reach the plan's maximum benefit age, typically 65, regardless of whether you remain disabled.
  • Pre-existing conditions often have exclusion periods: conditions present in the 3–6 months before enrollment may not be covered initially.
  • Mental health and substance use claims are frequently capped at 24 months even in plans that cover physical disabilities for the full benefit period.

Example

A financial analyst is diagnosed with a serious illness that prevents her from working for 18 months. Her short-term disability covers the first 6 months. Her long-term disability plan then pays 60% of her $120,000 salary ($72,000/year) until she can return to work.