Requesting a discharge of mortgage with CommBank

Steps for initiating a mortgage discharge

Olesya Krasavtseva
Fact-checked by Olesya Krasavtseva
Content Editor at Prostobank Consulting Prostobank Consulting Logo
Updated: 01.09.2026
Table of Contents

If you are selling your property, refinancing with another lender, or have paid off your home loan in full, you will need to request a 'discharge of mortgage' from Commonwealth Bank. This is a formal administrative process that removes the bank's registered interest in your property title. It is not usually a matter of downloading a generic form from the internet; instead, it involves initiating a specific request through the bank’s digital portal or via a conversation with their home lending team.

The system is designed to capture your unique loan details and settlement requirements to ensure the discharge is processed accurately. Once your request is submitted and validated, you will typically be provided with a tailored Discharge Authority form that must be signed by all borrowers and guarantors before it can be processed by the bank’s settlements team.

Key Process Information

Category Details
Access Method CommBank digital portal (via NetBank) or by calling 13 2221.
Processing Time Typically 10–14 business days (varies by complexity).
Eligibility Current home loan and investment loan holders.
Key Requirements Signed Discharge Authority form, settlement date, and solicitor details.

When to Use CBA Authority Forms

  • Release a guarantor from a mortgage or credit line
  • Refinance your mortgage to another bank
  • Discharge the mortgage after full repayment
  • Replace existing security with a new one
  • Release an estate property that is being sold

How to Complete and Submit the Form

  • Print the appropriate discharge/refinance authority form
  • Fill in all required borrower, guarantor, and security details
  • Obtain signatures from all guarantors and lenders involved
  • Email it to [email protected] or drop it off at your nearest CommBank branch

Troubleshooting Access Issues

If you encounter technical roadblocks, consider these common scenarios:

  • MFA or Login Issues: If you are unable to access NetBank to start your request, ensure your mobile device is connected to a stable network. If your security token or SMS code is not arriving, try force-closing the app. If access remains blocked, call 13 2221 to verify your identity and progress the request manually.
  • Browser or App Errors: When using the online form, large documents or session timeouts can cause errors. If the page freezes, clear your browser cache or try an alternative browser. If the portal fails to load, do not keep retrying; call the bank’s home loan support line to request that they manually trigger the form generation for you.
  • Locked Account or ID Access: If your account is locked due to multiple failed attempts, you will likely need to visit a branch with your identification to have your digital access restored. Do not attempt to bypass this with a new user ID, as this can delay your application by creating conflicting customer records.

Pro-Tip: Coordinate closely with your solicitor or conveyancer before submitting your form. They are often the best party to handle the 'Discharge of Mortgage' communication with the bank’s settlements team. Providing their correct contact details in your initial request can reduce the need for the bank to contact you for further clarification, potentially speeding up the settlement process.

Frequently Asked Questions

Why can't I just download a generic discharge form online?

The bank requires a discharge request to be tied to your specific loan account, property details, and current payout balance. A generic form would lack the necessary security and account identifiers, which would lead to the request being rejected. By initiating the process digitally, the system generates a form pre-populated with your correct account details. Always start the request through the official portal to ensure the document generated is valid for your specific loan.

What if I am selling my property and my settlement date changes?

Property settlements are dynamic and often change. If your settlement date is adjusted after you have already submitted your Discharge Authority, notify your solicitor immediately. They are responsible for communicating the revised timeline to the bank’s settlements team. If the delay is significant, you may need to call the bank to request an extension or a new payout figure, as the previous one will have an expiry date attached to it.

Need to release a guarantor, refinance, or discharge your mortgage with Commonwealth Bank? CommBank provides authority forms that streamline these processes efficiently.

Official Bank Information

Commonwealth Bank (CBA)

Support: 13 22 21

SWIFT Code: CTBAAU2S

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