CommBank
CBA discharge authority formand how to use it
One form. Allow up to 14 business days.
To discharge a CommBank mortgage you complete the Discharge/Refinance Authority and send it to an online form if you're selling; otherwise a PDF you print, sign and email to cbadischarges@cba.com.au or hand in at a branch. CommBank says it takes up to 14 business days. There is usually a discharge fee, set in your loan contract rather than published.
Start CommBank's discharge formStart the formonlineOpens CommBank's own site. Checked 8 September 2026.
- Form
- Discharge/Refinance Authority
- Lender asks for
- up to 14 business days
- Discharge team
- 1300 219 166
- Last checked
- 8 September 2026
What a discharge authority actually does
When you took the loan out, CommBank registered a mortgage over your property. That registration stays until you tell them to remove it. The discharge authority is how you tell them.
You need one in three situations: you’re selling, you’re moving the loan to another lender, or you’ve paid the loan off and want the mortgage lifted. It’s the same form each time — you just tick a different reason.
How to do it
- Get the Discharge/Refinance Authority — their own online form. Always use the lender’s copy. Broker and form-filling sites host old versions, and an out-of-date form gets rejected, which costs you the whole processing window.
- Fill in your loan account number, the property address, and the reason you’re discharging.
- Have every borrower and guarantor sign it. Most lenders still want a real signature rather than a typed one.
- Send it to an online form if you're selling; otherwise a PDF you print, sign and email to cbadischarges@cba.com.au or hand in at a branch.
- Tell your conveyancer it’s lodged, and give them the date you sent it. They’ll chase the payout figure and book settlement.
Pick the settlement date from your contract or your conveyancer.
CommBank asks for 14 business days. Weekends are skipped; public holidays in your state are not, so take a day off the date for each one.
CommBank is the only one of the big four with an online path, but it only covers selling. Refinancing still means the printed form, and CommBank says a refinance discharge takes up to 14 business days once they have the signed form — it can be subject to credit approval and a valuation.
Selling or refinancing — they aren’t the same
Most pages treat these as one process. They aren’t, and the difference decides who does the chasing.
If you’re selling
- The loan is paid out of the sale proceeds on settlement day
- Your conveyancer runs it
- Lodge the form once the contract is unconditional
- Hand your conveyancer the date you sent it
If you’re refinancing
- Two lenders have to settle on the same day
- Your new lender drives it
- Nothing can be booked until CommBank has processed this form
- Lodge it as soon as your new loan is formally approved, not after
What it costs
CommBank doesn’t publish a standard discharge fee, and nor do most other lenders. It’s set in your loan contract, so check your letter of offer or the fees and charges booklet from settlement. It comes out of the payout figure rather than arriving as a separate bill.
Two other costs catch people out. The state land titles office charges a registration fee, which your conveyancer passes on. And if you’re still inside a fixed term, break costs are separate from the discharge fee and can run into thousands. Ask for both figures before you commit to a settlement date.
Breaking a fixed rate first
If any part of the loan is still fixed, this is step zero. CommBank calls it “Early Repayment Adjustment”, and it can be larger than every other cost on this page put together.
The figure is not published anywhere, because it depends on the day: it is roughly what CommBank loses by re-lending your fixed money at today’s wholesale rate for the rest of your fixed term. If rates have gone up since you fixed, it can be zero. If they have come down, it can be thousands. To get the number: phone a Home Lending Specialist on 13 2224. The quote is good for that day only; there is no NetBank path. CommBank also charges a $50 administration fee alongside it. CommBank publishes a worked example.
In CommBank’s words: “To understand whether an ERA could apply and how much it could be, speak to a Home Lending Specialist on 13 2224.” Get the quote in writing before you sign anything with the new lender, and get it again the week of settlement, because it moves with the market.
Getting the payout figure
The number your conveyancer or new lender needs to book settlement: the balance, plus interest to the day, plus the fees.
Log on to NetBank and it shows an estimated payout figure for the settlement date you pick, fees and interest included. The final figure comes through the Discharge/Refinance Authority process. CommBank doesn't publish a turnaround. No fee for the letter is published. In CommBank’s words: “Log on to NetBank to view the estimated payout figure. This is the estimated amount you'll need to pay on your settlement chosen date, including all fees and interest charges.”
A payout figure is only good for the date on it. Interest accrues daily, so a figure for the 12th is wrong on the 15th, and if settlement slips your conveyancer will ask for a fresh one. Ask for it once the settlement date is booked, not before.
Cancelling the direct debit
The loose end. After settlement the old loan is closed, but a repayment set up from another bank can still try to run.
In the CommBank app or NetBank, under home loan maintenance, you can change the account repayments come from, and the amount, frequency and date, without a form. In CommBank’s words: “Modify your repayment amount, frequency, date, or the account your repayments are taken from through the CommBank app or by logging onto NetBank.”
If the repayment comes from a CommBank account, the debit stops when the loan closes. If it comes from another bank, cancel it at that bank on the day after settlement, not before, or the final repayment bounces and the payout figure is short.
Same group, different form
CommBank is part of the CommBank Group. The process is similar across the group, but each brand has its own form and its own discharge team — use the one for the name on your loan.
Common questions
How long does a CBA discharge take?
CommBank says it takes up to 14 business days from when they get your signed form. Allow all of it, and in practice most people allow three weeks, because the form is only the first step — your new lender and both conveyancers still have to book the settlement.
Does CommBank charge a discharge fee?
Usually yes, but CommBank doesn't publish a standard amount. It's set in your loan contract, so check your letter of offer or the fees and charges booklet you were given at settlement. Expect it to be deducted from the payout figure rather than billed separately. If you took the loan out with a fixed rate that hasn't ended, break costs are separate and can be much larger.
What is a CBA discharge authority?
It's the form that tells CommBank to release its mortgage over your property. You need one whether you're selling, refinancing to another lender, or paying the loan off entirely. CommBank calls theirs the Discharge/Refinance Authority.
Should I discharge my CommBank mortgage after paying it off?
Yes, and it doesn't happen on its own. Paying the balance to zero closes the loan account; it does not remove CommBank's mortgage from your title. Until you lodge the Discharge/Refinance Authority and the discharge is registered with the land titles office, the property still shows CommBank as mortgagee, which you will discover the day you try to sell, refinance or borrow against it. Do it while the paperwork is fresh.
What happens if I don't discharge my CommBank mortgage?
Nothing, until you need the title clean. The mortgage stays registered against the property with a zero balance behind it. A sale or a new loan then has to wait for CommBank to process the discharge, which takes at least 14 business days, and settlement can't be booked until it's done. Some lenders also keep charging a package or account fee on a loan that is paid out but not closed.
How do I get the CBA discharge form?
CommBank is the only one of the big four with an online path, but it only covers selling. Refinancing still means the printed form, and CommBank says a refinance discharge takes up to 14 business days once they have the signed form — it can be subject to credit approval and a valuation. Once it's filled in and signed, send it to an online form if you're selling; otherwise a PDF you print, sign and email to cbadischarges@cba.com.au or hand in at a branch.
How much does CommBank charge to break a fixed rate?
There is no set figure. CommBank calls it "Early Repayment Adjustment", and it is worked out on the day from the difference between your fixed rate and the wholesale rate for the rest of your term, so it can be zero or thousands. phone a Home Lending Specialist on 13 2224. The quote is good for that day only; there is no NetBank path. A $50 administration fee is charged alongside it. In CommBank's words: "To understand whether an ERA could apply and how much it could be, speak to a Home Lending Specialist on 13 2224."
How do I get a payout figure from CommBank?
Log on to NetBank and it shows an estimated payout figure for the settlement date you pick, fees and interest included. The final figure comes through the Discharge/Refinance Authority process. It is only accurate for the date on it, because interest accrues daily, so ask for it once the settlement date is booked. In CommBank's words: "Log on to NetBank to view the estimated payout figure. This is the estimated amount you'll need to pay on your settlement chosen date, including all fees and interest charges."
How do I change or cancel the direct debit on my CommBank home loan?
In the CommBank app or NetBank, under home loan maintenance, you can change the account repayments come from, and the amount, frequency and date, without a form. If the repayment comes from another bank, cancel it there the day after settlement so the final repayment doesn't bounce. In CommBank's words: "Modify your repayment amount, frequency, date, or the account your repayments are taken from through the CommBank app or by logging onto NetBank."
Checked against CommBank’s own discharge page on 8 September 2026. Lenders change forms, addresses and timeframes without much warning — if something here doesn’t match what they’ve told you, theirs is right and we’d like to know.
Before you discharge, check the new rate is worth it
Discharge fees, break costs and registration fees all come off the saving. Is it worth refinancing? does the sum for the balances people ask about, and the rate monitor shows where your rate sits against every lender on the panel.
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