Most retirement calculators ask: "How fast can I pay off my mortgage?"
This one asks...
"How much will it actually cost to keep my mortgage-free home, when I retire?"
PLEASE NOTE: Pre-filled with example numbers β just type over them with your own. Only use numbers - no commas or symbols. Your answers are not stored or shared anywhere (unless you request an email snapshot at the end). Answers marked AUTO will auto-populate from previous selections for certain currencies but you can still type over this if you wish. Enter '0' in any field not relevant for you - don't leave blank.
STEP 1
Your currency
All figures below will display in your selected currency symbol. AUD and NZD also unlock an auto-estimated employer retirement contribution in Step 3.
STEP 2
Your numbers
$
Combined income if calculating for more than one person. If you have selected AUD or NZD as your currency, this figure will assume you're an employee and auto-populates the employer retirement contribution at Step 3.
$
What actually hits the bank, annually. We only use gross & net figures, as tax thresholds vary so much by person and location.
$
Approximate current market value is fine. If you are not yet a home owner but plan to be - enter the approx value of a home you anticipate purchasing. Everything else in this tool is applicable assuming you are mortgage-free by your stated retirement age.
The age you'd like work to become optional.
2.6AUTO
$
1% of home value/year is a widely used rule-of-thumb for maintenance, repairs, insurance and rates combined. Overtype it if you know your real number.
STEP 3
Your other resources (optional)
$
Enter 0 if none. Examples: Superannuation balance, savings, shares, crypto, investment property (if including property/real estate - use approx current market value after any outstanding mortgage or debt balance has been deducted).
$
eg annual amount expected to be put towards savings/shares etc. Don't include extra contributions to a pension or retirement scheme - there's a separate box for that below at 3.5. Also don't include additional contributions to your home's mortgage - that's assumed as cleared using your desired mortgage-free age above at step 2.4. This step is purely to account for other, additional investments you may have.
This is sometimes referred to as your "payout rate". For example, if you retired with a total of $500,000 in investments and plan to use 4% per year, that's around $20,000 of annual retirement income. It could come from rental property (after expenses), dividends, bank account interest or other investment income, or from gradually drawing down your investment balance while the remainder continues to grow (this is often referred to as the "4% rule").
NOTE: This is NOT your investment growth rate BEFORE retirement β we'll cover that separately in Step 4.
$
Enter 0 if not applicable or you do not anticipate being eligible for this type of benefit. Use the maximum currently available entitlement where you live, even if it's means-tested. Or run a quick search. This way, you know your best case scenario as it stands.
3.5AUTO
$
*If you are an employee in Australia or New Zealand, this is auto-estimated for you based on current rates and your chosen currency. If you are self-employed, overwrite this number with the approx annual amount you are voluntarily contributing to this - if applicable. Enter 0 if not.
If capital, payout rate and pension above are all 0, your "at retirement" income is treated as $0 β 100% of retirement income would go to home running costs. Deliberate: it makes the true exposure impossible to ignore.
STEP 4
STRESS-TEST THE ASSUMPTIONS
This is yours to set β expected returns vary with age and how the money's invested. Rough guide: 20sβ30s ~8β9% p.a., 40sβ50s ~6.5β8% p.a., 60s+ ~4β6.5% p.a. Different number from the payout rate in Step 3 β that one already assumes growth during retirement, this one is about the years before it.
Pensions have historically risen roughly in line with inflation or wages β commonly 2β6% depending on the country's indexation rule.
REAL LIFE NUMBERS FOR REAL LIFE PLANS
What if? β try the top of the range. If costs like this hold for even 5β10 years, watch what happens to your score below.
Recommended range 3β8%. "Official" inflation blends everything from groceries to flat-screen TVs into one number β including things that got cheaper. Australian home insurance alone rose 51% between 2020β2025, more than double wage growth over the same period. Pick where your lived experience sits.
STEP 5
YOUR QUICK GUT CHECK SCORE
COST TO KEEP YOUR MORTGAGE-FREE HOME:
TODAY
AT RETIREMENT
6%
COMFORTABLE BREATHING ROOM
If none of this grew at all between now and retirement, this would be 113.5% instead.
Today
$8,500
6.1% of net income
At retirement (age 65)
$26,108
113.5% of retirement income
UNDER 15%Comfortable breathing room
15β25%Noticeable ongoing commitment
25β35%Significant income burden
35β50%High fixed-cost exposure
OVER 50%More than half your income goes to costs on your home
DON'T LOSE THIS SNAPSHOT... SAVE YOUR SCORE
Consent required to send you your score
Your score just showed you the number.
It didn't show you why this is happening β or what you could do instead. That's exactly what the True Cost of Property tool walks you through: the full 10β20 year picture, buy vs. rent vs. rentvest, with real alternatives.