How Much Disability Insurance Do I Need?

CoverageGap Team · Published October 27, 2026 · 10 min read

Here's the short version: most financial planners land on replacing 60 to 70 percent of your gross income. If your take-home pay disappeared tomorrow because of an illness or injury, that's roughly the share you'd need coming from somewhere else to keep your bills paid and your savings intact. The harder question — the one this article is actually about — is how much of that your employer is already covering, and how big the gap is once you subtract it.

For a lot of people, that gap is bigger than they'd guess.

Why 60–70% of income, and not 100%?

It sounds low until you look at what changes when you're out of work. Payroll taxes stop. Retirement contributions stop. Commuting costs, work clothes, and daily coffee runs stop. And if you funded your disability policy with your own after-tax dollars rather than your employer's, the benefit itself often arrives tax-free — so a $5,000 pre-tax salary and a $3,500 tax-free disability benefit can leave you in a similar spot month to month.

That's the theory. In practice, the number that matters is your number, based on your actual fixed costs — mortgage or rent, debt payments, dependents. If you're carrying a lot of debt or supporting a family on one income, you may want to aim toward the higher end of that range, or even above it.

Your employer's plan is probably covering less than you think

Group long-term disability through work is a real benefit, and if you have it, you're ahead of a lot of people. But it has three limits that catch people off guard:

• It usually replaces 50–60% of base salary — not 60–70%. That's already a shortfall against the target most planners recommend.
• It's calculated on base salary only. Bonuses, commissions, and overtime are typically excluded entirely, which matters a lot if a meaningful chunk of your income is variable.
• It caps out at a flat dollar amount — commonly $5,000 or $10,000 a month, regardless of how high your salary climbs. The gap widens every year you get a raise.

Put those three together and a $150,000 earner with a plan that replaces 60% of base salary, capped at $5,000 a month, isn't getting 60% of their income replaced at all — they're getting about 40%. The cap did the damage, not the percentage.

The numbers behind the risk

Disability insurance tends to get pushed to the bottom of the to-do list because it feels abstract — something that happens to other people. The data says otherwise.

• The Social Security Administration estimates that roughly 1 in 4 of today's 20-year-olds will experience a disability that keeps them out of work for a year or more before they reach retirement age.
• At least 51 million working U.S. adults have no disability insurance beyond basic Social Security protection, according to the Council for Disability Awareness.
• If you do end up relying on Social Security Disability Insurance (SSDI) alone, the average monthly benefit for a disabled worker was about $1,630 as of early 2026 — below the federal poverty guideline for a two-person household. And it's not a given: roughly 68% of initial SSDI applications are denied, with a typical wait of three to five months for a first decision.

None of that means panic. It means the math is worth doing once, properly, rather than assuming your employer's plan has you covered.

How to work out your own number

You don't need a spreadsheet for this. Four steps get you there:

1. Pick your target replacement percentage. Start at 65% of gross income unless your fixed costs push you higher.
2. Find your employer plan's actual replacement. Check your benefits portal or ask HR for the percentage, the monthly cap, and whether bonuses/commissions count.
3. Subtract. Target income minus what your employer plan would actually pay (after accounting for the cap and any tax owed) equals your gap.
4. Check your elimination period cushion. Most plans don't start paying for 90 days after a disability begins. You'll need savings or other income to bridge that window regardless of how good your coverage is.

A second way to check your number: the expense method

The percentage-of-income method above is the fastest way to a starting number, but it's worth cross-checking against your actual bills, especially if your spending doesn't track closely with your salary. Here's the alternative:

1. Add up your essential monthly expenses — housing, utilities, insurance, debt payments, groceries, childcare, transportation. Leave out discretionary spending like travel or dining out.
2. Add up income that would keep coming in if you were disabled — a spouse's salary, rental income, investment income.
3. Subtract the second number from the first. What's left is the minimum monthly benefit you'd need just to keep your household running.

If this expense-based number comes out higher than your 65%-of-income target, use the higher one. It usually means a bigger share of your paycheck goes to fixed, non-negotiable costs.

Short-term or long-term disability insurance — or both?

These two types of coverage solve different problems, and most people end up needing both:

• Short-term disability typically pays out for 3–6 months and covers things like a difficult pregnancy, surgery recovery, or a broken bone. It usually starts paying within 1–14 days of the disability.
• Long-term disability picks up where short-term ends — after a 90-day elimination period, in many plans — and can keep paying for years, sometimes until retirement age, for more serious or permanent conditions.

If you can only afford one, prioritize long-term coverage. A multi-year disability is the scenario that actually wrecks a household's finances; a few months without pay is painful but usually survivable with savings.

What it costs to close the gap

Individual long-term disability policies typically run 1–3% of your annual income per year in premium, depending on your age, health, occupation, and how much benefit you're buying. Using the example above, closing a $1,289 monthly gap might cost somewhere in the range of $850–$2,500 a year — far less dramatic than the gap itself once you see it priced out.

Mistakes worth avoiding

• Assuming "I have coverage" means "I have enough coverage." Having a plan and having the right amount of plan are different questions.
• Forgetting about caps when you get a raise. A plan that was adequate at $70,000 can fall badly short at $120,000 if the dollar cap never changed.
• Not checking who pays the premium. This single detail decides whether your future benefit is taxed, which changes your real number by a meaningful margin.
• Skipping the elimination-period math. Good long-term coverage doesn't help you in month one if you don't have savings to bridge the waiting period.

Frequently asked questions

None of this is a substitute for advice from a licensed insurance agent or a fee-only financial planner who can look at your full picture. What it is, though, is a starting number — and for most people, having any number beats having none.