What You Need To Open A Business Bank Account In Australia

Opening a business bank account is one of those “simple” setup tasks that can quickly become frustrating if you don’t have the right documents ready.

If you’ve been searching what do I need to open a bank account, you’re not alone. For startups and small businesses, a bank account is more than just somewhere to store funds - it helps you separate personal and business finances, track expenses, manage tax and GST, and present your business professionally to customers, suppliers and investors.

The tricky part is that what you need depends on how your business is structured (sole trader vs company vs partnership), whether you’re trading under a business name, and what the bank needs to satisfy its identity checks and compliance requirements. Bank requirements can also vary between providers, and they may request additional documents depending on your circumstances.

Below is a practical, Australia-specific checklist you can use to prepare before you apply - plus common pitfalls to avoid so you can open your account sooner and get back to running your business.

Why Opening A Separate Business Bank Account Matters

Even when you’re just starting out, keeping business money separate from personal money can save you a lot of time (and stress) later.

Here’s why it’s worth doing early:

• Cleaner bookkeeping: It’s much easier to track revenue and expenses when everything runs through one account.
• Smoother BAS and tax time: If you’re registered for GST or need to lodge BAS, clean transaction records make life easier. (Your exact GST/BAS obligations depend on your business and turnover - consider getting accounting or tax advice if you’re unsure.)
• Professional credibility: Customers and suppliers often expect invoices to be paid into an account with the business name (or trading name) on it.
• Better risk management: If you ever need finance, a bank or investor will usually want to see business financials clearly separated.
• Multiple users and controls: Business accounts can allow additional users, approvals, and clearer separation of roles.

One important note: depending on your business structure and your accountant’s advice, you may be able to operate without a separate business bank account at the very beginning - but for most businesses, it’s a sensible early step.

Before You Apply: Confirm Your Business Structure And Details

Banks typically ask for different documents depending on your structure. So before you gather paperwork, it helps to be clear on how your business is set up.

Sole Trader

If you’re a sole trader, you (as an individual) are the business - legally speaking. Many banks will still allow you to open an account under your trading name, but you’ll usually need to show your ABN details and personal identification.

If you’re trading under a name that isn’t your own personal name, you’ll generally need a registered business name.

In practice, this often means having your ABN and your business name registration details ready (if applicable).

Partnership

If you’re in a partnership, banks commonly require identification and details for each partner. They may also want to confirm the partnership’s ABN and how partners are authorised to operate the account.

It’s also a good idea for partners to have clear rules around money management and decision-making (including who can approve payments and sign documents), often documented in a partnership agreement.

Company

If you operate through a company, the bank will usually ask for company details (such as your ACN) and information about directors and any key individuals.

If you haven’t incorporated yet, you may need to complete your Company Set Up before you can open an account in the company’s legal name.

Companies often have extra documentation needs because the business is a separate legal entity from you personally - which is also one of the reasons many founders choose this structure.

The Practical Checklist: What You Need To Open A Bank Account For A Business

Here’s the core checklist most Australian businesses should prepare. Think of this as the “walk in ready” list - so you’re not scrambling mid-application.

1. Your Identification (And Anyone Else On The Account)

Banks must verify the identity of people opening and operating accounts. This commonly includes:

• Directors (for companies)
• Partners (for partnerships)
• Sole traders (you)
• Authorised signatories or account users (if you add staff or a bookkeeper)

Typically, this will involve Australian ID documents (such as a driver licence and/or passport), and potentially proof of address depending on the bank and your circumstances.

2. Your ABN (And Proof It’s Active)

For most businesses, you’ll need an Australian Business Number (ABN). The bank may:

• Ask you to provide your ABN; and
• Check the ABN register to confirm your details match (name, entity type, status, etc).

Make sure your ABN registration details are accurate and up to date, especially the business name/entity name displayed publicly.

3. Your Business Name (If You’re Trading Under One)

If you’re a sole trader or partnership using a trading name, the bank may ask for evidence of your business name registration.

It’s common for founders to assume their ABN automatically “covers” their trading name - but in Australia, a business name is a separate registration.

If you’re still setting this up, a Business Name registration is usually part of getting your admin and compliance in order.

4. Company Details (If You’re A Company)

If you’re opening an account for a company, banks commonly require:

• Company name
• ACN (Australian Company Number)
• Registered office and/or principal place of business
• Details of directors and sometimes shareholders

Some banks also ask for supporting governance documents (especially for newer companies or where the structure is more complex).

In some cases, a Company Constitution may be relevant because it can help show how the company is governed and who has authority to act.

5. Evidence Of Authority To Open The Account

Banks want comfort that the person opening the account is authorised to do so.

Depending on your structure, this might include:

• Companies: a directors’ resolution approving the account opening and appointing authorised signatories
• Partnerships: confirmation that each partner consents (or that a specific partner is authorised)
• Trusts (if applicable): trustee details and trust documents

If you have multiple founders, it’s also worth thinking beyond the bank’s minimum requirements and putting clear rules in place for decision-making and money management. A Shareholders Agreement can help set expectations early (for example, who controls spending, what approvals are needed, and what happens if someone exits the business).

6. Your Business Address And Contact Details

You’ll usually need to provide a business address. For startups, this might be:

• a home office address
• a coworking space address
• a leased commercial premises address

The key is consistency: your address should align with your ABN details and any company registration details where possible.

7. Your Expected Account Activity (Sometimes Requested)

Some banks ask questions about what you’ll use the account for and your expected transaction activity. This can include:

• the nature of your business (industry)
• estimated monthly turnover
• where funds come from (e.g. customers, platforms, investors)
• international payments (if relevant)

This isn’t about making things difficult - it’s often part of the bank’s compliance and risk processes. Having a clear, simple explanation ready can speed things up.

Common Scenarios That Change What You’ll Need

Most “what do I need to open a bank account” checklists only cover the basics. But in the real world, a few common scenarios can trigger additional requirements.

If You’re Opening The Account Before Launch (Pre-Revenue)

This is very common for startups. If you haven’t started trading yet, the bank may still open the account - but you’ll want to ensure your registrations are already in place (ABN, company incorporation, business name, etc.).

From a practical perspective, it can help to have:

• a short description of your business model
• a basic business plan or pitch deck (even if the bank doesn’t ask for it)
• evidence of your business registrations

If You’re Using Investor Funds Or Taking On Debt

If you’re raising capital or taking on finance, keeping funds clearly separated becomes even more important. You may also have extra documentation and legal considerations around how money is used and recorded.

For example, if funds are being advanced to the company by a director (rather than invested as shares), it may be treated as a loan. How this should be documented and recorded can depend on the circumstances, so it’s worth getting legal and accounting advice. In the meantime, it can help to understand how a director loan arrangement commonly works so your records reflect what was actually agreed.

If Your Business Will Give Security Over Assets

If you’re getting certain types of finance, you may be asked to provide security - sometimes under a general security arrangement. This is often linked to the Personal Property Securities Register (PPSR).

Even if you’re just starting out, it helps to understand what a general security agreement is, because it can affect your equipment, inventory, receivables, and other business assets.

If You’re Running An Online Business And Collecting Customer Data

If you’ll be taking online orders, running subscriptions, collecting emails for marketing, or storing customer details, you should think about privacy compliance early - not after you’ve launched.

Many businesses will benefit from having a Privacy Policy if they collect personal information (like names, emails, phone numbers, delivery addresses, or payment-related details). Whether you’re legally required to have one depends on factors like whether the Privacy Act applies to your business (for example, whether you’re an “APP entity”), and what information you collect and how you handle it.

Even where you’re not strictly required to have one, it’s often expected by payment providers, platforms, and customers - and it helps build trust.

What To Do After The Account Is Open (So You Stay Compliant)

Opening the account is only step one. Once it’s live, a few simple habits can save you major headaches later.

Set Up Clear Access And Approval Rules

If more than one person will use the account, be deliberate about:

• who can view vs who can transact
• whether two approvals are required for large payments
• how you handle reimbursements and petty cash

This is as much about preventing misunderstandings as it is about preventing fraud.

Keep Records And Reconcile Regularly

Even if you have an accountant, you’ll thank yourself for:

• reconciling transactions weekly or fortnightly
• keeping receipts and invoices organised
• keeping notes for unusual transactions

It’s much easier to fix issues in real time than months later during tax season.

If You’re Hiring, Align Payroll With The Right Documents

When you start employing staff, your bank account will likely be used for wages, superannuation, and reimbursements.

It’s a good time to make sure you have proper employment documentation in place, including an Employment Contract that clearly sets expectations around pay, duties, confidentiality, and workplace policies.

This helps keep operations consistent and reduces the risk of disputes.

Key Takeaways

• If you’ve been asking what do I need to open a bank account for your business, the key is preparing the right documents based on your business structure (sole trader, partnership, or company).
• Most Australian businesses will need identification, an ABN, and (if applicable) business name registration details before applying.
• Companies often need extra information, including ACN details and evidence of authority (like a directors’ resolution) to open and operate the account.
• If you’re raising funds, taking on finance, or giving security over assets, your banking setup should align with your legal documents and obligations.
• If you collect customer data (especially online), privacy compliance and having the right policies in place can be just as important as the bank account itself - but whether you’re legally required to have specific documents depends on your circumstances.
• Once your account is open, setting clear access rules and keeping good records will make bookkeeping, tax, and business growth much easier.

If you’d like help getting your business legally set up (including the right structure and essential legal documents), you can reach us at 1800 730 617 or team@sprintlaw.com.au for a free, no-obligations chat.