$1,000,000 Mortgage at 4%
See exactly what you'll pay on a $1,000,000 home loan at 4% interest. Monthly, fortnightly, and weekly repayments with total interest and savings tips.
Last verified: 5 May 2026Monthly repayments on a $1,000,000 mortgage at 4% over 30 years: $4,774.15
Monthly
$4,774.15
Fortnightly
$2,203.46
Weekly
$1,101.73
Total cost over 30 years
$1,718,695
Principal $1,000,000 + Interest $718,695
Total interest paid
$718,695
72% of the loan amount
25-Year vs 30-Year Term
| 25 years | 30 years | Difference | |
|---|---|---|---|
| Monthly repayment | $5,278.37 | $4,774.15 | +$504.22/mo |
| Total interest | $583,511 | $718,695 | Save $135,185 |
| Total repaid | $1,583,511 | $1,718,695 | Save $135,185 |
What If Rates Change?
| Rate | Monthly | Fortnightly | vs current |
|---|---|---|---|
| 3.5% | $4,490.45 | $2,072.51 | -$283.71/mo |
| 4%(current) | $4,774.15 | $2,203.46 | — |
| 4.5% | $5,066.85 | $2,338.55 | +$292.70/mo |
| 5% | $5,368.22 | $2,477.64 | +$594.06/mo |
| 5.5% | $5,677.89 | $2,620.56 | +$903.74/mo |
Income Needed
You'd need a household income of approximately $190,966/year ($15,914/month) to comfortably afford this mortgage using the 30% rule — where no more than 30% of your gross income goes toward housing costs.
Extra Repayment Impact
Paying an extra $100/week on your $1,000,000 mortgage:
- Saves $121,559 in interest
- Pays off your loan 4.4 years sooner
Fortnightly vs Monthly Trick
Paying $2,387.08 fortnightly (half the monthly repayment) instead of $4,774.15 monthly means you make 26 half-payments per year — equivalent to 13 monthly payments instead of 12.
- Interest saved: $112,767
- Time saved: 4.1 years
Frequently Asked Questions
How much are repayments on a $1,000,000 mortgage?
At 4% over 30 years, monthly repayments on a $1,000,000 mortgage are $4,774.15. Fortnightly repayments are $2,203.46 and weekly repayments are $1,101.73.
What income do I need for a $1,000,000 mortgage?
Using the 30% rule (no more than 30% of gross income on housing), you would need a household income of approximately $190,966 per year to comfortably afford a $1,000,000 mortgage at 4%.
How much interest will I pay on $1,000,000 over 30 years?
At 4%, the total interest on a $1,000,000 mortgage over 30 years is $718,695. The total amount repaid would be $1,718,695.
What if interest rates rise above 4%?
If rates rise by 1% to 5%, monthly repayments on a $1,000,000 mortgage increase to $5,368.22 — an extra $594.06 per month.
Other Mortgage Amounts
Other Interest Rates
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General information and estimates only — not financial, tax, or legal advice. Always verify with a licensed adviser or the ATO.