Disability Insurances: Covering Your Lost Income

Disability insurance safeguards your income, which is essential for supporting yourself and your family. While it is related to health insurance, its primary focus is on income protection rather than covering medical expenses. It is as important as life insurance, especially if you have dependents.

Anyone who is employed is at risk of losing income due to sickness or injury. Many employers provide sick days and additional time off that can be used as needed. Some may also offer disability income insurance, which compensates for a portion of the income you lose when you are unable to work due to illness or injury.

Disability income insurance is often the most overlooked type of insurance, yet it matters that every worker have this coverage.

Disability insurance is indeed expensive — it generally costs about 1 to 3% of your income, but it is essential. Generally, the more expensive the insurance, the more necessary it is. This high cost is attributed to the likelihood of the insurance paying out at some point. Similar to health insurance, disability insurance is costly because advancements in safety and medicine have increased our chances of survival. However, surviving an accident, such as a car crash at 55 MPH, does not guarantee a full recovery. Decades ago, such an accident would likely have been fatal. Today, thanks to safety features like crumple zones, seatbelts, and airbags, survival is much more likely, though often with significant injuries. The cost of disability insurance also reflects the complex nature of determining disability, given how many distinct ways an individual can be deemed “disabled”.

• Short-term disability (STD) essentially comprises two separate insurance coverages for the periods of weeks [0, 13) and [13, 26), both governed by the same policy rules. The details of disability insurance coverage can differ depending on the insurance provider and the requirements of your state. The state-mandate map has changed substantially and most references are stale. The original short-term-disability states are California, Hawaii, New Jersey, New York, Rhode Island, and Puerto Rico. To these, a second wave of paid family and medical leave programs — which cover the worker’s own serious health condition and therefore function as state-mandated STD — has been added: Washington, Massachusetts, Connecticut, Colorado, Oregon, and, newly effective in 2026, Delaware and Minnesota (January 1) and Maine (May 1). Maryland’s program is deferred to 2028. If you are in any of these states, your employer-provided STD is coordinating with a public benefit, and the private policy’s value is only the increment above it.

  Do not assume a state mandate means a meaningful benefit. New York’s Disability Benefits Law pays 50% of average weekly wage capped at $170 per week — a figure last raised in 1989 and never indexed, now worth roughly a fifth of what it was at enactment. The same state’s Paid Family Leave benefit, written later with indexation built in, pays up to $1,228.53 a week in 2026. Identical state, adjacent programs, a sevenfold gap, and the difference is entirely whether someone wrote an escalator into the statute. It is the cleanest illustration in this book of why you index anything you intend to rely on for thirty years — and why a New York employee should read their statutory disability benefit as approximately zero and plan the private stack accordingly. California employees contribute to Voluntary Plan Disability Insurance (VPDI), which provides coverage for the first 52 weeks of disability. This employer-sponsored VPDI typically offers more comprehensive benefits compared to the State Disability Insurance (SDI) plan. All employees in California must be covered by either SDI or an equivalent alternative plan.

• Long-term disability (LTD) covers weeks [26, infinity) of disability.
• Social Security Disability Insurance (SSDI) is a federal program designed to provide income supplements to individuals who are physically restricted in their ability to be employed because of a notable disability. The application process for SSDI can be extensive, often resulting in delayed payments. When these back payments are made, the IRS has specific guidelines for taxing these retroactive benefits. SSDI is generally compatible with Social Security retirement benefits, meaning individuals can transition smoothly between the two. In cases where someone has Long-Term Disability (LTD) insurance, they are usually required to apply for SSDI if they qualify.

Table 18.4 lays out how the layers stack. Read it as one large California employer’s benefits summary, not market rates — the employee cost, the replacement percentages, the monthly cap, and the bonus/vesting/accrual rows are all plan-specific and vary widely. What generalizes is the structure: overlapping coverage periods, a public program underneath a private one, offsets between them, and a set of collateral benefits (equity vesting, benefit continuation, 401(k) eligibility) that expire at different moments.

Private employers treat their plan terms as confidential, so the only fully published group plans are public-sector ones — and they are the right comparables to calibrate against. The Massachusetts GIC guide (Table 18.6) and California’s CalHR deduction schedules give complete age-banded rates and plan terms; the state statutory programs (California SDI, New York DBL, New Jersey TDB, Hawaii TDI, Rhode Island TDI) publish contribution rates and benefit caps in full; and for federal employees the disability benefit is statutory, at 5 U.S.C. §8452 — 60% of high-3 salary less 100% of any SSDI in year one, then 40% less 60% of SSDI thereafter. Pull your own summary plan description, fill in the same grid, and compare it against those; the exercise is the point.

Note the taxation row carefully — it is the one line in the table with a decision attached, and section “The Contract Terms That Actually Matter at High Incomes” explains why the answer is always to pay the premium with after-tax dollars.

Depending on your certification, you could receive LTD pay until your Social Security Normal Retirement Age (SSNRA), which varies based on your birth year.

To qualify for LTD benefits you must meet the plan terms and supply medical documentation from your treating physicians — office notes, progress notes, treatment plans, test results — establishing that an illness or injury prevents you from performing your job as the policy defines it. The carrier requests the records and decides what substantiates the claim; failure to produce them closes the claim. Two practical points the plan booklet will not tell you. First, the treating physician’s notes are the claim: a chart that records “patient reports fatigue” supports nothing, while one that documents specific functional limitations against specific job duties supports a lot. Tell your physician what the policy’s definition of disability actually says. Second, at high benefit levels expect the carrier to order an independent medical examination and to conduct surveillance — both are routine, both are contractually permitted, and neither means your claim is in trouble.

If you meet the plan’s terms and are approved, LTD insurance covers up to 65% of your base pay for medical disability leave lasting more than 182 days. For absences of 182 days or fewer, refer to the short-term disability policy. If your medical provider certifies that an illness or injury prevents you from working, you can take this leave.

You may also be eligible for state-mandated disability programs and job protection under federal and state leave laws, which may run concurrently with Long-term Disability.