Sara is 34 and healthy, and disability is not a word that has ever crossed her mind in relation to herself. It crossed it this month, though, when a coworker she sees every day went off work suddenly — not a layoff, a health thing — and the open-ended nature of it rattled the whole team. Sara went home and did some quiet math. The mortgage, the daycare, the groceries, the whole machine of her life runs on one engine: her paycheque. She has life insurance, vaguely, for if she dies. She has nothing at all for the far more common scenario — being alive but unable to earn.
That blind spot is almost universal, and it’s worth naming plainly. For most working-age people, the single biggest asset they own isn’t the house or the investments — it’s their ability to earn an income over the decades ahead. We insure the house and the car without blinking. We insure our lives so others are okay if we die. And then we leave the engine that pays for all of it — our income — completely uninsured, despite the fact that a disabling illness or injury during your working years is statistically more likely than dying during them.
The move is to find out what you already have, and then measure the gap. Start with any employer group long-term disability (LTD) coverage. It’s a real benefit, but it usually comes with two catches worth knowing: it’s often capped (commonly replacing something like 60–70% of income, up to a ceiling), and if your employer pays the premium, the benefit is typically taxable — so what actually lands in your account is smaller than the headline number. Your gap is simple arithmetic: your essential monthly needs minus what group coverage would really pay you after tax. If that’s a positive number, that’s the hole.
If there’s a gap — and there often is — you fill it with individual coverage, and here the fine print matters as much as the dollar amount. Watch the definition: “own-occupation” pays if you can’t do your own job, which is far stronger and more valuable than a policy that only pays if you can’t do any job. Check the waiting period (how long before benefits start, which your emergency fund has to bridge), the benefit period (how long payments last — to 65 is the gold standard), and whether the policy is non-cancellable so the insurer can’t change the terms on you later. These features are the difference between coverage that works when you need it and coverage that disappoints.
Sara spent twenty minutes on her benefits portal and found her group LTD would replace less than she’d assumed, taxable, and capped — leaving a real monthly gap against her must-pay bills. That number was uncomfortable to see, which is exactly why it was useful. She wasn’t going to fix it that afternoon, but she’d turned a vague unease into a specific figure, and a specific figure is something you can actually act on. Her income was doing the heavy lifting for her entire life; now she knew precisely how much of it was unprotected.
Your income is your biggest asset — insure it. Check your group LTD (often capped and taxable when the employer pays), subtract what it really pays from your essential monthly needs, and fill the gap with individual coverage if there is one. Watch the definition (own-occupation), the waiting period, and the benefit period. This weekend: find your group LTD amount and compare it to your must-pay bills.
FAQ
Do I need disability insurance?
If you rely on your income and have limited savings, yes — it protects your ability to earn, which for most working-age people is their single biggest asset.
Isn’t my work coverage enough?
Maybe not. Group LTD is often capped (commonly around 60–70% of income) and taxable if the employer pays the premium — so check for a gap against your real essential expenses.
What does “own-occupation” mean?
It pays if you can’t do your own job, not just any job — a stronger, more valuable definition than coverage that only pays if you can’t work at all.
How much coverage do I need?
Enough to cover your essential monthly expenses minus other reliable income — the gap left after what your group plan would actually pay you after tax.
Related — the protection that covers the other scenario: How Much Life Insurance Do You Actually Need? (see Episode 6).