How Much Can I Borrow on a $300,000 Salary? (2026)
On a $300,000 salary, you could borrow approximately $1,224,552 for a home loan at 6.2% over 30 years. This estimate uses the standard 30% serviceability ratio — spending no more than 30% of your gross income on mortgage repayments.
On a $300,000 salary, using the standard 30% serviceability ratio, you could borrow approximately $1,224,552 at 6.2% over 30 years. Your maximum monthly repayment would be $7,500.
What mortgage can I afford on $300k?
At 6.2%, a $300,000 salary supports a mortgage of about $1,224,552 with monthly repayments of $7,500. If rates drop to 5.5%, your capacity increases to $1,320,913.
How do interest rates affect borrowing power on $300k?
Interest rates significantly impact how much you can borrow. On a $300,000 salary, borrowing power ranges from $1,022,126 at 8% down to $1,320,913 at 5.5%. Each 0.5% rate change shifts capacity by roughly $69,976.
Is the 30% rule accurate for mortgage affordability?
The 30% rule (spending no more than 30% of gross income on housing) is a common guideline but conservative. Lenders may use different ratios and also consider your existing debts, living expenses, and credit history. Use our full Borrowing Power Calculator for a more personalised estimate.
Should I borrow the maximum on $300k?
Just because you can borrow $1,224,552 doesn't mean you should. Consider your lifestyle, other financial goals, potential rate increases, and whether you want a buffer. Borrowing 80% of your maximum provides a safety margin for rate rises.
Need a more personalised estimate?
Our Borrowing Power Calculator factors in your existing debts, living expenses, and dependants for a more accurate estimate.