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Disability Insurance Calculator
Individual policies typically replace 50–65% of pre-disability income, tax-free when you pay the premiums. 'Own-occupation' definition pays if you cannot do your specific job — materially more valuable than 'any-occupation' wording.
Monthly Coverage Gap
$5,200
Income Protection Analysis
With no employer disability benefits, a work-interrupting event leaves your $5,200/month expenses completely unfunded — a gap of $5,200/month. Individual disability insurance covering that gap runs roughly $182.52/month for an 'own-occupation' policy at age 38. Your 4 months of savings buys only 4 months of runway; disability claims commonly last many times longer. This is the strongest case for individual coverage: the cost is known and small relative to the open-ended exposure.
*Estimates an income-protection gap and indicative premiums using actuarial approximations. Actual underwriting, benefit caps, waiting periods and quotes vary by insurer, occupation and whether cover is held inside or outside super. Educational only, not financial product advice.
Protecting Your Biggest Asset: Your Paycheque
Most Australians insure their car and their home but leave their single most valuable asset — the ability to earn an income — unprotected. A professional earning $90,000 a year for thirty years has roughly $2.7 million of future earning power, dwarfing any other asset they will ever own. An illness or injury that interrupts that stream doesn't pause the mortgage, school fees or groceries; it simply stops the income while the bills keep coming. In Australia, income protection (IP) insurance replaces a portion of your salary — commonly up to 75% — if you can't work. Many workers hold default cover inside superannuation without realising it, but default policies are frequently capped, use restrictive definitions, and may lapse when contributions stop. Meanwhile, the government's Disability Support Pension provides only a basic safety net of around $1,000 a fortnight for eligible recipients. Because IP premiums held inside super are often effectively paid from concessionally taxed funds, and working-age Australians statistically face a real risk of a prolonged work interruption, the question is not whether to protect income — it's discovering how cheaply the gap can be closed. This calculator sizes the gap between your essential expenses and what your existing cover would actually pay.
The Gap Between Expenses and What Cover Pays
The engine subtracts rather than adds, because the useful number is exposure, not income. Start with the monthly income you would lose (annual income ÷ 12), then with the essential monthly expenses that continue regardless. Existing cover — typically a super fund's salary continuance benefit — is modelled as replacing a percentage of salary, but it can never pay more than the expenses themselves, so existing coverage is the lesser of the plan's replacement value and the expense need. The gap is expenses minus what existing cover provides. IP policies impose their own ceiling: insurers generally cap benefits at around 75% of pre-disability income to preserve the incentive to return to work, so the insurable gap is capped at 65% of monthly income for the premium estimate. An age-adjusted cost factor is applied to that insurable amount. Your savings runway is reported separately — it answers a different question (how long you can self-insure a short interruption) and is deliberately not subtracted from the long-disability gap, because a four-month buffer cannot absorb a three-year claim. The output is the monthly coverage gap, the replacement target, the indicative premium, and the runway — enough to decide both the size of benefit worth quoting and whether your savings can bridge the waiting period.
Expert Insights
Own-Occupation Wording Is Worth the Premium
The single most important line in any IP policy is the definition of disability. 'Own occupation' pays if you cannot perform the duties of your specific profession — a surgeon who loses fine hand control collects even if they could theoretically teach. 'Any occupation' pays only if you cannot work in any field for which you are reasonably suited, a far stricter standard that routinely denies claims from specialists. Many default super policies revert to an any-occupation test after an initial period. For anyone whose skills are specialised and income depends on them, own-occupation cover is the actual product — cheaper any-occupation policies are a different, weaker contract wearing the same label.
Default Super Cover Can Disappear When You Need It
Default income protection inside super has structural weaknesses: it typically covers 75% of salary up to a capped monthly benefit, excludes bonuses and overtime, and — critically — cover often lapses when contributions stop, which happens automatically if you change jobs, take a career break or your employer's contributions pause. Since January 2020, inactive accounts (no contributions for 16 months) have had insurance switched off unless you opt back in. Treat default cover as a welcome starting point that closes part of the gap, never as the foundation of your income protection, and check your super's insurance schedule every time you change jobs.
Buy While You Are Healthy — Insurability Is a Wasting Asset
Income protection is medically underwritten, and the window to qualify at standard rates narrows with age and health. A diagnosis acquired at 44 can raise premiums dramatically or disqualify you entirely at 46, yet the need for protection only grows as income, mortgage and family responsibilities rise. This asymmetry is why locking in cover young and healthy is the financial move: you secure the rate and the insurability before anything can change the outcome. Premiums for the same benefit rise with each year you wait, and after a health event the product may simply no longer be offered at any price.
Actionable Tips
- 1
Size the Gap With Real Expenses, Not Salary Percentages
Resist the shortcut of insuring a fixed percentage of salary and instead enter your actual essential monthly costs — mortgage or rent, debt minimums, insurance, food, utilities, and dependents' costs. The gap calculation is only as honest as the expense number, and many households discover their essential floor is different from what they assumed once dependents are counted. Using real expenses sizes the benefit accurately so you neither over-pay for cover you don't need nor under-insure the month a claim is paying. Write the essential-expense number down first, then run the calculator; that figure is the benefit target to quote.
- 2
Compare Inside-Super and Retail Cover
IP held inside super is convenient and premiums can be paid from your balance, but it erodes your retirement savings and pays benefits to your fund first; individually held cover offers stronger definitions, portability, and potentially tax-deductible premiums for some structures. Get at least three quotes through a broker who can compare both channels, and compare not just price but the disability definition, benefit period (2 years, 5 years, or to age 65), waiting period, and indexation options. The cheapest quote is frequently cheap because of weaker definitions or shorter benefit periods.
- 3
Match the Waiting Period to Your Emergency Fund
The waiting period — the time between disability onset and benefits starting, commonly 30, 60 or 90 days — is the deductible of income protection, and a longer waiting period lowers premiums substantially. The rational choice ties it to your actual emergency runway: if you hold six months of expenses in an offset account or savings, a 90-day waiting period lets you self-insure the short end cheaply while the policy covers the long tail. If your buffer is thin, a shorter waiting period is worth the higher premium because you cannot absorb a three-month gap. Let the savings figure in this calculator drive the waiting-period choice.
Real-World Examples
Sarah's Default Cover Stopped at the Two-Year Mark
Sarah, a marketing manager earning $128,000, assumed her super fund's salary continuance covered her. The calculator showed the 75% benefit against her $6,300 of essential costs was fine on paper — but the policy's own-occupation definition reverted to 'any occupation' after two years, and the benefit was capped below her true income. She added a retail policy covering the gap to age 65. Two years later, a back condition took her out of management for fourteen months; the additional policy paid the full gap, while the default cover would have been assessed under the stricter test. The extra policy was the difference between covered and exposed.
Daniel Locked in Insurability at 32
Daniel took out an own-occupation policy at 32 for around $140 a month covering his $5,400 monthly need. At 39, routine bloodwork revealed a condition that would have raised premiums sharply or disqualified him had he applied fresh. Because his policy was already in force and guaranteed renewable, nothing changed — same rate, same cover, despite the new diagnosis. Had he waited until after the diagnosis, the same cover would have cost dramatically more, if offered at all. Seven years of modest premiums bought him an outcome no future application could match: protection that could not be repriced when he most needed it.
Priya Self-Insured — But Only Because Her Assets Covered the Tail
Priya, a software engineer with a large portfolio and offset buffer, declined IP premiums for years. She ran the calculator anyway and found her income gap was $5,600 a month — but her emergency buffer covered 28 months and her portfolio could sustain years. She made a deliberate decision to self-insure, because her assets genuinely absorbed the exposure. But she set an automatic review: if her runway ever dropped below twelve months, cover goes back on. The point of her story is not 'skip insurance'; it's that the right answer depends on your actual assets. Running the number turned a vague assumption into a documented, re-checkable decision.
Glossary of Terms
- Own-Occupation Definition
- A policy pays if you cannot perform the duties of your specific profession, even if you could work a different job. It is the strongest and most valuable definition, especially for specialised, high-income professions.
- Waiting (Elimination) Period
- The gap between the onset of disability and when benefits begin — effectively the policy's deductible. Longer waiting periods lower premiums and are best matched to the size of your emergency fund.
- Benefit Period
- How long the policy keeps paying once a claim is approved — commonly 2 years, 5 years, or to age 65. Longer periods cost more but protect the expensive long-duration claims that drain savings.
Frequently Asked Questions
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Ivy Sinclair-Wren
Financial Chaos Analyst
Ivy Sinclair-Wren is a Financial Chaos Analyst covering investing, AI, wealth psychology, and the emotional consequences of opening finance apps during market crashes. Based in Melbourne, she specializes in demystifying the Australian tax code and helping users navigate the intersection of spreadsheet logic and human irrationality.