Loan Guide
Mortgage Repayments on $800,000 (2026)
Monthly repayments on a $800,000 home loan are $4,900 at 6.2% over 30 years. Over the life of the loan, you'll pay $963,911 in interest, bringing the total cost to $1,763,911.
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Monthly repayment $4,900 at 6.2% over 30 years
Total interest $963,911
Total cost $1,763,911
Interest / principal 120%
Repayments at Different Rates
How repayments on $800,000 change with interest rate, all at 30-year term:
| Rate | Monthly | Fortnightly | Weekly | Total Interest | Total Cost |
|---|---|---|---|---|---|
| 5.0% | $4,295 | $1,981 | $990 | $746,046 | $1,546,046 |
| 5.5% | $4,542 | $2,095 | $1,048 | $835,232 | $1,635,232 |
| 6.0% | $4,796 | $2,213 | $1,106 | $926,706 | $1,726,706 |
| 6.5% | $5,057 | $2,333 | $1,166 | $1,020,356 | $1,820,356 |
| 7.0% | $5,322 | $2,455 | $1,227 | $1,116,071 | $1,916,071 |
| 7.5% | $5,594 | $2,581 | $1,290 | $1,213,738 | $2,013,738 |
| 8.0% | $5,870 | $2,708 | $1,354 | $1,313,242 | $2,113,242 |
Repayments by Loan Term
How the term length affects your repayments and total cost on a $800,000 mortgage at 6.2%:
| Term | Monthly | Total Interest | Total Cost |
|---|---|---|---|
| 15 years | $6,838 | $430,768 | $1,230,768 |
| 20 years | $5,824 | $597,792 | $1,397,792 |
| 25 years | $5,253 | $775,797 | $1,575,797 |
| 30 years | $4,900 | $963,911 | $1,763,911 |
Key Facts
You'll pay 120% extra in interest On a $800,000 mortgage at 6.2% over 30 years, total interest is $963,911 — that's 120% on top of the principal.
Estimated salary needed: $196,000 As a budgeting illustration, this repayment is 30% of gross monthly income at approximately $196,000 per year. This is not a lender serviceability result.
Fortnightly payments save interest Switching to fortnightly payments means 26 half-payments per year (equivalent to 13 monthly payments), which reduces total interest and shortens the loan.
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Frequently asked questions
How much are repayments on a $800k mortgage?
At 6.2% over 30 years, monthly repayments on a $800,000 mortgage are $4,900. Fortnightly repayments would be $2,260.
How much interest do you pay on a $800k mortgage?
Over 30 years at 6.2%, you'd pay $963,911 in total interest on a $800,000 mortgage. That's 120% of the original loan amount. The total cost including principal is $1,763,911.
Can I afford a $800k mortgage?
As a simple budget illustration, $4,900/month equals 30% of gross monthly income at a salary of about $196,000. This is not a lender serviceability result. A lender also assesses living expenses, debts, income and deposit, and APRA-regulated banks apply at least a 3 percentage point rate buffer.
Is a 15 or 30 year mortgage better for $800k?
A 15-year term on $800,000 at 6.2% costs $6,838/month but saves $533,143 in interest compared to 30 years. The 30-year option has lower repayments of $4,900/month but costs $1,763,911 total.
Should I pay fortnightly on a $800k mortgage?
Paying fortnightly effectively makes 26 half-payments per year (equivalent to 13 monthly payments instead of 12). On a $800,000 mortgage, this can shave years off the loan and save tens of thousands in interest.
Need a more detailed breakdown?
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