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Your cash account for trading

The Commonwealth Direct Investment Account (CDIA) is the preferred cash management account for CommSec share traders - with it you can seamlessly settle trades, transact and earn tiered interest based on your account balance.

Your CDIA is linked to your CommSec Trading Account so you enjoy low brokerage costs plus the convenience of settling trades without the need to transfer between accounts. The tiered interest rate applies to the entire balance on your account (including dividends paid into this account), pay no monthly account-keeping fee, enjoy unlimited electronic withdrawals¹ and complete access to your cash anytime.

How it works

The CDIA is the preferred cash management account for CommSec, allowing you to seamlessly settle trades, save and transact all from one account. Your CDIA is linked to your CommSec Trading Account for settlement of your trades. You can access your account online through NetBank and CommSec.

When you’re not using your cash for investments, it could be earning interest, calculated daily and paid monthly. There are no account keeping fees, and you’ll get unlimited free electronic transactions.

Access your cash from any CBA branch, ATM, or via phone and internet banking.
Settle your trades automatically through your CDIA.
Earn tiered interest on funds in your account.
Use the optional Debit MasterCard to access your cash globally.

Benefits

Settle trades and enjoy low brokerage

Settle your share trades directly through your CDIA, and benefit from brokerage as low as $5.00³ per trade.

Real-time banking

Transact on your CDIA in real time⁶ through NetBank, the Commonwealth Bank's market-leading online banking platform. Instantly transfer funds seamlessly between all your CBA accounts.

Maximise trading opportunities

We automatically recognise balances in your CDIA when you place an order, which means you can place a buy or sell order as soon as you see an opportunity, without the need to transfer funds or provide a deposit.

No monthly account-keeping fees

Pay no monthly account-keeping fees¹ and get unlimited electronic transactions (Other fees may apply).

Consolidate your dividends

Our free Dividend Direction service takes the hassle out of managing dividend payments. Just opt in online, and dividend payments will automatically be paid into your CDIA⁴ and start earning interest where applicable.

Global convenience

Get access to your cash where and how it suits you, with Australia's largest branch network, telephone and internet banking, and an optional CBA Debit MasterCard that you can use across the globe.

Rates and fees

Interest Rates - Accounts opened / migrated on or after 1 November 2012

Effective from 30 May 2025

Balance	Linked to CommSec Trading Account^	SMSF*
$500,000 or more	2.80% p.a.	2.80% p.a.
$250,000 - $499,999	2.45% p.a.	2.80% p.a.
$100,000 - $249,999	2.15% p.a.	2.80% p.a.
$50,000 - $99,999	1.55% p.a.	2.80% p.a.
$20,000 - $49,999	1.05% p.a.	2.80% p.a.
$10,000 - $19,999	0.80% p.a.	2.80% p.a.
$5000 - $9,999	0.10% p.a.	0.10% p.a.
$0 - $4,999	0.10% p.a.	0.10% p.a.
For interest rates applicable to the Standard Access CDIA, please refer to Interest Rates on Transaction, Savings and Investment Accounts ^Only available where: i) CDIA is originated through CommSec and linked to a CommSec Share Trading Account, or have requested to switch to this price option; and, ii) the Linked CommSec Share Trading Account is not suspended. *Only available for self-managed superfunds (SMSF) at account opening or if you have requested to switch to this price option for an eligible account type.

Interest Rates - Accounts opened on or before 31 October 2012#

Effective from 30 May 2025

Balance	Accounts opened on or before 31 October 2012^#
$500,000 or more	1.45% p.a.
$250,000 - $499,999	1.45% p.a.
$100,000 - $249,999	0.90% p.a.
$50,000 - $99,999	0.90% p.a.
$20,000 - $49,999	0.10% p.a.
$10,000 - $19,999	0.10% p.a.
$5,000 - $9,999	0.10% p.a.
$0 - $4,999	0.00% p.a.

# Interest rates for existing account holders only - no longer available for sale

Withdrawal Fees

For accounts opened / migrated on or after 1 November 2012:

CDIA accounts linked to CommSec Trading Account price option allows for unlimited fee-free electronic withdrawals
SMSF CDIA price option allows for unlimited fee free electronic withdrawals and assisted withdrawals each month

For accounts opened on or before 31 October 2012: please refer to your Offer Confirmation Letter (available on NetBank) or for Standard Access (CDIA) accounts, please refer to Rates and Fees.

Other Fees and Charges

For a complete list of potential fees and charges that may apply, please read the Transaction, Savings and Investment Terms and Conditions.

Fees and rates are subject to change.

Who can apply?

You can apply for a CDIA if you are:

18 years or older with an Australian residential and postal address; or
An Australian registered or incorporated company; or
An Australian trust or SMSF; and
Applying for a CDIA in conjunction with a CommSec Share Trading Account or have an existing CommSec Share Trading Account.

What you’ll need if you’re new to CommSec:

ID (e.g. driver’s licence or passport)
Tax File Number (TFN) or TFN Exemption⁵
SMSF name and Australian Business Number (ABN)
Company details and Australian Company Number (ACN)
Certified copy of the Trust Deed (if applicable)

Get started

Open a CommSec Share Trading Account

Be up and running in as little as 5 minutes. Start by choosing one of the options below:

Already have a CommSec Share Trading Account?

Opening a Commonwealth Direct Investment Account couldn’t be easier. Login to CommSec below and follow the prompts to add a Commonwealth Direct Investment Account to your list of accounts.

Don't have a CommSec Share Trading Account?

Open a CommSec Share Trading Account and a Commonwealth Direct Investment Account together to settle your trades directly and enjoy low brokerage.

Join now >

Frequently asked questions

How do I transfer funds into my CDIA?

You have several options to transfer funds into your Commonwealth Direct Investment Account (CDIA):

Transfer from your linked Commonwealth Bank accounts
You can transfer funds from your linked accounts to your CDIA in real-time using NetBank. Your linked Commonwealth Bank accounts are those you can see on the NetBank home page.

For security reasons we may place a hold on funds transferred to or from your account:

For 24 hours, or
In some circumstances, where the transaction takes place after 7:30pm (Sydney/Melbourne time), until the day after the following day, or
For as long as we reasonably need to investigate the transaction.

To transfer funds to your CDIA:

Login to NetBank. If you are beginning from the CommSec website, you can simply switch into NetBank by selecting NetBank from the single sign-on toggle in the top-left corner of your screen.
Go to the ‘Transfers & BPAY’ tab
In the From account drop-down menu, select the account with the funds you wish to transfer.
In the To account drop-down menu, select your CDIA.
Enter the amount you wish to transfer and an optional description, then click Next.
On the confirmation screen, review your transfer details. If they are correct, click Transfer to complete the transfer to your CDIA. Your funds will be available in your CDIA immediately.

From unlinked accounts
If you wish to transfer funds from someone else’s account, or transfer from your account at another financial institution, you will require your CDIA details including BSB and account number.
You can locate your CDIA details by logging into the CommSec website and navigating to the Portfolio tab. Your CDIA details can also be found on your NetBank home page.

Commonwealth Bank ATM
You can transfer funds between your linked accounts by using any Commonwealth Bank ATM., You can also deposit cash and cheques directly to your CDIA at selected ATMs. Locate the Commonwealth Bank ATM nearest you.

Commonwealth Bank branch
You can deposit cash and cheques into your CDIA by visiting your nearest Commonwealth Bank branch. Locate the branch closest to you.

Is there a minimum balance on my CDIA?

There is no minimum balance on CDIAs.

How do I transfer funds from my CDIA to another account?

Login to NetBank. If you are logged into the CommSec website, switch into NetBank by selecting 'NetBank' from the tab in the top-left corner of your screen.
Go to the ‘Transfers & BPAY’ tab
In the 'From' account drop-down menu, select your CDIA.
Under the 'To' account, use the drop-down menu to select an account which is already in your NetBank address book. To transfer to an account which is not in your address book, select 'Pay new account' and enter the account details.
Enter the amount you wish to transfer and an optional description, then click 'Next'.
If you are paying to an account which is not in your address book, you will need to generate a NetCode SMS for additional security. Select 'Get NetCode SMS' and you will receive an SMS to your mobile phone. To continue, enter the NetCode that is sent to your phone.
On the confirmation screen, review your transfer details. If they are correct, click 'Transfer' to complete the transaction.

Will my CDIA appear in NetBank?

Yes. You can access your CDIA and make transactions in NetBank. Once you have logged in using your NetBank ID, you can also switch to CommSec and navigate easily between both sites. This means you can take advantage of investment opportunities as they arise and access your cash instantly to settle trades.

Can I have more than one CDIA?

While you can create multiple Commonwealth Direct Investment Accounts (CDIA) under your CommSec profile, CDIA accounts that are outside of the Target Market Determination (TMD) may be closed in accordance with the Transaction, Savings and Investment Accounts (TSIA) Terms and Conditions.

How do I change the transfer limit on my CDIA?

You can use NetBank to change your daily withdrawal limit. Please note that this change will apply to all your linked CBA accounts.

Login to NetBank. If you are logged into the CommSec website, you can switch into NetBank by selecting 'NetBank' from the tab in the top-left corner of your screen.
Go to 'Settings', then select 'Transfer & BPAY daily limits'.
Select the limit that meets your needs from the drop-down menu.
To continue, you will need to generate NetCode SMS for additional security. Select 'Get NetCode SMS' and you will receive an SMS to your mobile phone. Enter the NetCode sent to your phone and then select 'Save changes'.

Changes will take effect immediately and you will receive a bank message to confirm your daily withdrawal limit was updated successfully.

Are there any fees and charges for CDIAs?

There are no account-keeping or electronic transaction fees for CDIA. Online transfers, direct debits and withdrawals from Commonwealth Bank ATMs within Australia are also free.

For a complete list of potential fees and charges that may apply, please read the Transaction, Savings and Investment Accounts Terms and Conditions and the CBA Financial Services Guide. Rates and fees are subject to change.

Financial Services Guide

The Financial Services Guide ("FSG") provides information about Commonwealth Bank to help you decide whether to use the financial services we offer.

Download the Financial Services Guide

Transaction, Savings and Investment Accounts Terms and Conditions

The CommBank Transaction, Savings and Investment Accounts T&Cs document outlines the CDIA for CommSec terms of use and has the complete fees and charges.

Target Market Determination

The target market for this product can be found within the product's Target Market Determination.

Other forms and brochures

For all other forms and brochures regarding other financial services we offer.

If you are looking for administrative forms, please login and proceed to Help > Forms & Brochures.

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Important Information

¹ Applies to CommSec Trading Account holders.
² Applies to CDIAs opened on or after 1 November 2012. For payment frequency on CDIAs opened on or prior to 31st October 2012, interest is calculated daily and paid quarterly.
³To be eligible for discount brokerage you are required to trade online, be CHESS sponsored and have your CDIA linked for settlement.
⁴There may be instances where some share registries do not reciprocate on this service
⁵You don’t have to provide your TFN to open the account, but if you don’t CommBank and CommSec are legally required to deduct tax from any interest earned on the account above a certain threshold.
⁶For security reasons we may place a hold on funds transferred to or from your account. For further information refer to the Electronic Banking Terms and Conditions.

The target market for this product can be found within the product’s Target Market Determination, available here.

The Commonwealth Direct Investment Account is issued by Commonwealth Bank of Australia ABN 48 123 123 124 AFSL 234945. This product is administered by Commonwealth Securities Limited ABN 60 067 254 399 AFSL 238814 (CommSec) a wholly owned but non-guaranteed subsidiary of the Commonwealth Bank of Australia. You can view the CommBank Transaction Savings and Investment Account Terms and Conditions, Best Execution Statement and Financial Services Guide, and should consider them before making any decision about these products and services.

* "$0 brokerage on your first 10 trades" offer only available to new CommSec customers opening a new individual Australian Share Trading Account & Commonwealth Direct Investment Account (CDIA) between 1st May 2025 and 31st July 2025 via the ‘Join now’ link at www.commsec.com.au/offer or through the CommBank App. Offer applies if you trade online, are CHESS-sponsored by CommSec and settle your trade through your CDIA. This offer does not apply to CommSec Pocket trades, International Share trades, Exchange Traded Options or Margin Lending. You are not eligible for this offer if you have closed an Australian Share Trading Account on or after 1st May 2025. Offer not valid in conjunction with any other offer and not open to existing CommSec customers. As part of the offer, you will receive $0 brokerage on your first 10 Australian share trades, up to a maximum trade value of $50,000 each for orders placed on or before 31st October 2025. Standard CommSec brokerage charges apply for orders placed or amended after 31st October 2025. Trades above $50,000 will incur brokerage charges. For CommSec standard brokerage charges, see the CommSec Financial Service Guide. No brokerage fee will be shown on the CommSec Confirmation Contract Note issued in respect of applicable trades under this offer. This offer is not redeemable for cash and is not transferable. CommSec Share Trading Terms and Conditions apply unless otherwise specified here. Applicants must be 18 years or over. We reserve the right to terminate this offer or amend these terms and conditions at any time without notice. For any queries on this offer, please contact us on 13 15 19.