Disability Insurance Calculator

Disability insurance replaces a portion of your income — typically 60–70% — when you are unable to work due to illness, injury, or other disability. Short-term disability (STD) policies cover disabilities lasting days to months, while long-term disability (LTD) policies can cover you for years, to age 65, or for life. Covered conditions typically include musculoskeletal injuries (back problems, etc.), cancer, heart disease, mental health conditions, and accidents. Policies vary significantly in how they define disability — 'own-occupation' policies pay if you cannot perform your specific job, while 'any-occupation' policies require you to be unable to work in any capacity.

A general rule of thumb is to cover 60–70% of your gross monthly income. This replacement rate is designed so that after taxes (disability benefits are often tax-free if you pay premiums yourself), you receive roughly what you were taking home after-tax while working. You should also account for any existing coverage through your employer. If you have significant assets, an emergency fund, or a spouse's income to rely on, you may need less coverage. Self-employed individuals and business owners typically need the most coverage, as they have no employer-provided safety net.

Short-term disability (STD) insurance typically covers disabilities for 3 to 6 months, with benefits starting after a short elimination period of 0–14 days. Long-term disability (LTD) insurance kicks in after a longer elimination period (typically 90–180 days) and can pay benefits for years, to age 65, or for life. LTD coverage is considered the more essential protection because it covers the catastrophic scenario of an extended disability. STD coverage bridges the gap between the disability starting and your emergency fund running out or LTD benefits beginning. Most financial advisors recommend ensuring you have adequate LTD coverage first.

Yes, disability insurance is widely considered essential income protection. The Social Security Administration estimates that more than 1 in 4 of today's 20-year-olds will become disabled before retirement. The average long-term disability claim lasts nearly three years. Without disability insurance, a serious illness or injury could exhaust savings and lead to financial hardship quickly. Workers' compensation only covers on-the-job injuries. For most working adults, disability insurance is one of the most important but overlooked forms of protection.

Employer-provided disability coverage is valuable but often insufficient on its own. Group LTD policies typically replace only 60% of base salary, may exclude bonuses and commissions, and benefits are taxable if your employer pays the premiums. Coverage also ends when you leave the job. Individual disability policies are portable, can cover a higher percentage of income, and provide tax-free benefits when you pay the premiums. Many financial advisors recommend supplementing group coverage with an individual policy, particularly for high earners whose lifestyle expenses exceed what group coverage would replace.

The taxation of disability insurance benefits depends on who pays the premiums. If you pay all the premiums with after-tax dollars — typically for an individual policy you purchased yourself — then disability benefits are generally tax-free. If your employer pays all premiums, benefits are fully taxable as ordinary income. If you and your employer split the cost, only the portion attributable to employer-paid premiums is taxable. This is why many employees choose to pay their employer's voluntary disability plan premiums themselves, making future benefits tax-free. Consult a tax professional for guidance specific to your situation.