Key takeaway: Your income protection benefit should cover your essential monthly expenses while you cannot work, typically 70 to 75 per cent of your gross income. The right amount depends on your regular bills, debt repayments, living costs, and whether you have other cover or savings to draw on during the waiting period.

Why the Monthly Benefit Matters

Income protection insurance pays a regular monthly benefit if illness or injury stops you from working. Unlike a lump sum from life insurance or total and permanent disability (TPD) cover, income protection replaces your salary over time, usually until you can return to work or the benefit period ends.

Calculating the right benefit amount is crucial. Set it too low and you will struggle to pay your mortgage, bills and living expenses. Set it too high and you will pay more in premiums than necessary, and most policies cap the benefit at 70 to 75 per cent of your gross income anyway (as covered in foundational texts such as Principles of Finance).

According to ASIC MoneySmart, income protection is designed to cover your essential expenses, not maintain your entire pre-injury lifestyle. The benefit is usually taxable if held outside superannuation, so factor that in when calculating your needs.

What to Include in Your Calculation

Start with your monthly essential expenses:

  • Mortgage or rent payments
  • Utilities (electricity, gas, water, internet)
  • Groceries and household supplies
  • Transport costs (car loan, fuel, registration, public transport)
  • Insurance premiums (health, home, car)
  • Minimum debt repayments (credit cards, personal loans)
  • Dependant costs (childcare, school fees, support for ageing parents)

Then subtract any income that would continue while you are off work, such as:

  • Sick leave or annual leave (covers the waiting period)
  • Other insurance benefits (TPD or trauma cover payouts, though these are usually lump sums)
  • Partner’s income (if you rely on shared finances)
  • Investment income or rental income

The gap between your essential expenses and your ongoing income is the monthly benefit you need. Most Australian policies allow you to insure up to 75 per cent of your gross income (before tax), though this varies by insurer and occupation, so read the Product Disclosure Statement (PDS) for the exact limits.

Waiting Periods and Benefit Periods

The waiting period is how long you wait after becoming unable to work before the benefit starts. Common waiting periods in Australia are 30, 60 or 90 days. A longer waiting period lowers your premium but means you need savings or other cover to bridge the gap.

Read also: Income Protection Inside Super Versus Outside Super: Which Gives Better Value in Australia

The benefit period is how long the insurer will pay if you remain unable to work. Options include two years, five years, or to age 65 or 67. A longer benefit period costs more but provides greater security for serious long-term conditions.

When calculating your benefit, consider how long your emergency savings could sustain you during the waiting period, and what benefit period suits your occupation and risk tolerance.

Inside or Outside Superannuation

Income protection held inside your superannuation fund is usually cheaper (super funds negotiate group rates), but the benefit is generally lower (often capped at the super fund’s standard cover levels), and any payout is taxed differently. Cover held outside super lets you choose higher benefit amounts tailored to your expenses, and premiums are usually tax-deductible.

The Insurance Council of Australia consumer resources explain that cover inside super may suit younger workers or those on tighter budgets, while outside-super cover suits those with higher incomes or specific needs that default super cover does not meet.

Use the Calculator to Find Your Number

Rather than estimating by hand, use the income protection calculator to enter your actual expenses, income sources, waiting period and benefit period preferences. The tool works through the numbers and shows you the monthly benefit that matches your situation, along with how different waiting and benefit periods change the cover you need.

Once you have your target benefit, compare quotes from multiple insurers (the Australian Prudential Regulation Authority regulates all insurers, so check that the insurer is APRA-authorised). Read the PDS for each policy to confirm the benefit cap for your occupation, exclusions, and the definitions of disability (own occupation, any occupation, or a hybrid). Definitions vary and directly affect when and how much you can claim.

Before buying, verify current terms and premiums with a licensed insurance adviser who can recommend cover suited to your personal financial situation and occupation.

General Advice Warning

This is general information only. It does not take into account your objectives, financial situation or needs. Before acting on this information, consider whether it is appropriate for you. Read the relevant Product Disclosure Statement (PDS) and Target Market Determination (TMD), and consider obtaining personal advice from a licensed financial adviser. Cover terms, benefit caps, waiting periods and premiums vary by insurer, policy type (inside or outside superannuation), occupation and state or territory. Always confirm details in the PDS and with a licensed adviser for your personal situation before deciding.