How RBA Rate Moves Flow Through to Your Mortgage Repayments
The Reserve Bank of Australia (RBA) sets the official cash rate, which influences the interest rates lenders charge on variable-rate home loans. When the RBA changes the cash rate, lenders may adjust their standard variable rates, and this can directly affect your monthly mortgage repayment. The size of the change depends on the loan amount, the interest rate applied, and the loan term.
Understanding the Pass-Through
The RBA's cash rate is not the same as the interest rate on your home loan, but it is a key benchmark. Lenders typically pass on changes in the cash rate to borrowers, either in full or in part, by adjusting their variable rates. For example, if the RBA cuts the cash rate by 0.25 percentage points, a lender with a variable rate loan may reduce its interest rate by the same amount, leading to lower monthly repayments.
Calculating Monthly Repayments: Examples
To illustrate how a change in the cash rate could affect your mortgage repayments, consider the following examples. They assume a loan with a 30-year term and an interest rate that changes in line with the cash rate. Note that these examples are illustrative only and do not include fees or other charges.
Example 1: $500,000 Loan
- Loan amount: $500,000
- Interest rate before change: 5.00% p.a.
- Monthly repayment before: $2,684.11
- Interest rate after a 0.25% cut: 4.75% p.a.
- Monthly repayment after: $2,616.28
- Monthly saving: $67.82
Example 2: $750,000 Loan
- Loan amount: $750,000
- Interest rate before change: 5.00% p.a.
- Monthly repayment before: $4,026.15
- Interest rate after a 0.25% cut: 4.75% p.a.
- Monthly repayment after: $3,924.42
- Monthly saving: $101.73
Example 3: $1,000,000 Loan
- Loan amount: $1,000,000
- Interest rate before change: 5.00% p.a.
- Monthly repayment before: $5,368.22
- Interest rate after a 0.25% cut: 4.75% p.a.
- Monthly repayment after: $5,232.56
- Monthly saving: $135.66
What This Means for Borrowers
A 0.25 percentage point change in the cash rate can translate into noticeable differences in monthly repayments, especially for larger loans. For borrowers, understanding how RBA decisions flow through to their mortgage can help them budget and assess the impact of rate changes on their finances. Lenders may not always pass on the full change, and different loan products (such as fixed-rate loans) may not be affected immediately. It's important to review your loan terms and speak with your lender or a mortgage broker to understand how changes may apply to your situation.