FinanceCalcs
Long-Term Disability Income Calculator
Disability is the most underinsured major financial risk most working adults face. Calculate your income exposure, how long your savings would sustain you without income, and exactly how much LTD coverage you need to protect your financial plan.
One in four workers will experience a disability lasting 90+ days before retirement. Most are financially unprepared. This calculator shows you your gap.
Long-Term Disability Calculator
$0/yr income | Age 0
Monthly Coverage Gap: $0
Monthly Income Breakdown
| Income Source | Working | If Disabled | Change |
|---|
Savings Depletion Timeline
| Month | Savings Balance | Status |
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Year-by-Year Disability Impact
| Year | Age | Annual Shortfall | Cumulative Shortfall | Savings Remaining | LTD Needed |
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"Your ability to earn an income is your greatest financial asset. Disability insurance protects that asset when nothing else will."
— Financial Planning Principle
Why disability is your biggest uninsured risk
Most people insure their car, their home, and their life — but not their income. Yet the probability of a working-age adult experiencing a disability lasting 90 days or more before retirement is roughly 1 in 4, according to the Social Security Administration. The average long-term disability claim lasts 31 months. For many families, three years without income would be financially catastrophic.
Life insurance pays when you die. Disability insurance pays when you can’t work — which is actually more financially devastating for most families. A 40-year-old earning $100,000 who becomes permanently disabled at 40 loses $2.5 million in future earning power between then and retirement.
Your first line of protection is an employer group LTD policy — but most cap benefits at 60% of salary with a monthly maximum of $5,000–$10,000. For higher earners this creates a significant gap. The second line is Social Security Disability Insurance (SSDI) — but the average wait for approval is 2+ years, 65% of initial claims are denied, and the average benefit is about $1,500/month. Private LTD insurance fills the gap.
lightbulb How Much LTD Coverage Do You Need?
Most financial planners recommend replacing 60–70% of gross income through a combination of all disability income sources. The practical target: enough monthly income to cover essential expenses while disabled.
| Gross Income | Net Take-Home | 60% Coverage Target | Typical Group LTD | Private LTD Needed |
|---|---|---|---|---|
| $60,000 | ~$3,900/mo | $3,000/mo | $3,000/mo | $0 |
| $100,000 | ~$6,200/mo | $5,000/mo | $5,000/mo | $0–$1,000 |
| $150,000 | ~$8,800/mo | $7,500/mo | $6,000/mo cap | $1,500+ |
| $200,000 | ~$11,000/mo | $10,000/mo | $6,000/mo cap | $4,000+ |
Group LTD benefits are typically taxable if the employer pays premiums, further reducing effective take-home. Private LTD benefits are tax-free if you pay premiums with after-tax dollars.
Disability Insurance FAQs
What is the elimination period and how long should it be?
The elimination period (also called the waiting period) is the time between becoming disabled and when benefits begin — similar to a deductible measured in time rather than dollars. Common options are 30, 60, 90, or 180 days. A 90-day elimination period is the most common balance between premium cost and protection. Longer elimination periods lower premiums but require more savings to bridge the gap. Your emergency fund should cover at least the elimination period in expenses.
How is "disability" defined in LTD policies?
This is critically important. Own-occupation definition: you’re disabled if you can’t perform your specific occupation, even if you could work in another field. Any-occupation definition: you’re disabled only if you can’t work in any occupation for which you’re reasonably suited. Own-occupation is significantly more valuable and typically costs more. Many group policies start with own-occupation for 2 years, then switch to any-occupation — watch for this in the policy terms.
Are disability insurance benefits taxable?
It depends on who paid the premiums. If your employer pays the group LTD premium, benefits are taxable as ordinary income. If you pay the premiums personally with after-tax dollars (including individual policies), benefits are tax-free. This distinction significantly affects the net benefit received and should factor into how much coverage you need.
Does SSDI affect my private LTD benefits?
Usually yes — most group LTD policies contain an "offset" provision that reduces your LTD benefit dollar-for-dollar for SSDI received. Many group carriers will even help you apply for SSDI and may require you to apply. Private individual policies typically do not offset SSDI. Understanding your policy’s offset provisions is critical when calculating actual coverage.
Terminology
Long-Term Disability (LTD) Insurance
Insurance that replaces a portion of income if you become unable to work due to illness or injury for an extended period. Benefits typically begin after a 90-day elimination period and can last to age 65 or longer.
Elimination Period
The waiting period between the onset of disability and when insurance benefits begin. Acts like a time deductible. Common periods: 60, 90, 180 days. Your emergency fund should cover this period.
Benefit Period
How long LTD benefits are paid. Common options: 2 years, 5 years, or to age 65 (or 67). "To age 65" is the standard recommendation for working-age adults, as it covers the full period of income exposure.
Own-Occupation Definition
The most favorable disability definition: you qualify as disabled if you cannot perform the material duties of your specific occupation. A surgeon who loses hand dexterity qualifies even if they could work as a medical consultant.
SSDI (Social Security Disability Insurance)
Federal disability benefits for workers who have paid Social Security taxes and become unable to work. Requires a 5-month waiting period, has a rigorous disability standard, and takes an average of 18–24 months to be approved. Average benefit ~$1,500/month as of 2024.
Income Replacement Ratio
The percentage of pre-disability income replaced by all disability income sources combined. The standard target is 60–70% of gross income. Note that disability reduces some expenses (commuting, work clothes, retirement contributions) so 60–70% replacement often maintains a similar lifestyle.
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