Managing the interest on your margin loan

How do I pay the interest on my loan balance?

You can pay the interest on your loan by either:

  • having your linked bank account debited monthly, or
  • having the interest capitalised to your loan.

If you let the interest capitalise to your loan, your loan balance will increase each month, and the funds you have available on the loan will be reduced.

How do I find out how much interest has accrued on my margin loan?

You can view your loan Interest Summary online. The summary will show your accrued interest by month, plus total interest paid for the current financial year and the most recent financial year. Go to Portfolio > Accounts > Loan details or click here .

Where can I find the current margin loan interest rates and costs?

To view the latest interest rates, go to Products > Margin Loan > Rates & Fees, or click here and select Rates & Fees. You can view both the variable and fixed interest rates on this page.


When you use your CommSec Margin Loan, you will only be charged interest for the amount you borrow. Variable interest is calculated on the daily balance and charged monthly. As an option, you can request to fix the interest rate on a portion of your loan balance, or the whole thing. 


A CommSec Margin Loan comes with an integrated share trading account that qualifies for CommSec’s Margin Lending brokerage rates. Brokerage rates, fees, and other charges are available online. Go to Products > Margin Loan > Rates & Fees, or click here

When is interest charged on my margin loan?

Once your margin loan is established, interest will be charged to the loan after the first trade has been executed or a drawdown has been processed. Interest will be charged daily on the settled balance of the loan, not on your credit limit.

Interest owing will either be capitalised to your loan, or directly debited from your interest debit bank account (depending on what interest payment method you selected in your margin loan application). If you have opted for direct debit, please make sure sufficient funds are available in your bank account. Otherwise, we’ll charge a $30 dishonour fee.

To view your interest charges online, log in to your CommSec account and go to Portfolio > Account (select your Margin Loan) > Account details.

How do I change my payment preference?

To switch your payment preference from direct debit to capitalising to your loan (or vice versa), please send us a signed letter with your request. If you would like to add a new interest direct debit account, please complete a Direct Debit Request form. Once you have completed the form, scan and email it to

Can I fix the interest on my margin loan?

Yes. In some cases, fixed interest rates are lower than variable rates, giving you the opportunity to potentially reduce your interest expense*. To find out if fixing your margin loan could reduce the interest you pay, try our margin loan calculator.

You can fix your interest rate for the following terms:

  • 3 months, 6 months, or 9 months
  • 1 year, 2 years, 3 years, or 5 years
  • Other terms may be available on request.

If you fix your interest, you can choose to pay in advance or in arrears. Each of these options has a different interest rate, so check the list on our website at Products > Margin Loan > Rates & Fees.

If you want to go ahead, there are a few different ways to request a fixed interest rate:

Online request

  1. Log in to your CommSec account and go to Portfolio
  2. Select your Margin Loan account
  3. Under the Transfers tab, select “Variable loan to fixed”
  4. Follow the prompts to fill in the online request

Fixed Interest Request form

Download a Fixed Interest Request form and send us your completed form via email or post.


Post: Attn: CommSec Margin Loans, Locked Bag 34, Australia Square, NSW, 1214

Over the phone

Call our Margin Lending team on 13 17 09 (or + 61 2 9115 1402 if calling from overseas) between 8am and 6pm, Monday to Friday, Sydney time.

*Interest rates are subject to change without notice. You should make your own assessment of interest rates before making any decisions. If you decide to terminate a fixed rate agreement early, a termination fee / early repayment adjustment will apply.

As this information has been prepared without taking into account your objectives, financial situation or needs you should, before acting on this information, consider its appropriateness for your circumstances. Please consider the Product Disclosure Statement and loan terms and conditions available from this website before making any decisions.

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