Commercial overdrafts

See a list of the top business overdrafts

Updated: 01.09.2026

Quick Rates Review

Compare top financial options at a glance. Comprehensive analysis for each listed offer is available further down the page

#
Institution
Rate (APR/APY)
Sum & Term
1
IMB Bank IMB Bank
7.84% - 10.84%

Up to $500,000

Flexible Term

2
Commonwealth Bank (CBA) Commonwealth Bank (CBA)
8.50%

Up to $2,000

Flexible Term

3
Beyond Bank Australia Beyond Bank Australia
8.84% - 12.99%

Up to $10,000

Flexible Term

4
Suncorp Bank Suncorp Bank
9.99%

Up to $10,000

Flexible Term

5
Bank of Queensland (BOQ) Bank of Queensland (BOQ)
12.01% - 12.76%

Up to $10,000

Flexible Term

6
Commonwealth Bank (CBA) Commonwealth Bank (CBA)
14.55%

$2,000 - $250,000

Flexible Term

7
ANZ Bank ANZ Bank
15.95%

$2,000 - $200,000

Flexible Term

8
NAB NAB
16%

$5,000 - $50,000

Flexible Term

Quick Expert Insights

Interest Rates
Average:11.71%
Range:7.84% - 16%
Product Term
Minimum: 0 days
Maximum: 0 days
Limit / Amount
Min Entry:$2,000
Max Limit:$500,000
Analysis of 8 offers shows an average rate of 11.71%, with the absolute market maximum reaching 16%. Flexible terms from 0 days are available at , while offers terms up to 0 days . The lowest entry is $2,000 (via Commonwealth Bank (CBA)).

Full Products Review

In-depth analysis of available financial offers. Compare detailed terms and explore expert insights to choose the most suitable option for your needs.

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ANZ Bank

Unsecured business overdrafts with ANZ GoBiz

Rate: 15.95%

Sum: $2,000 - $200,000

💰 Fees & Rates

  • Application fee and admin charges apply
  • Credit Facility Fee (Limit ≤ $9,999): $250 p.a.
  • Credit Facility Fee (Limit $10,000 - $19,999): $400 p.a.
  • Credit Facility Fee (Limit $20,000 - $49,999): $600 p.a.
  • Credit Facility Fee (Limit ≥ $50,000): 1.7% p.a. of facility limit
  • Interest only charged on the amount used

📋 Important Terms

  • Security: No asset security required for limits up to $200,000; director guarantees may apply
  • Software Requirement: Must use Xero, MYOB, or Intuit QuickBooks with 6+ months of reconciled data
  • Business Eligibility: Registered ABN/ACN, GST registered if turnover ≥ $75,000, turnover up to $75m
  • Applicant Requirements: Australian citizen or permanent resident, 18+ years old
  • Repayments: No fixed deadline; repay as funds become available
  • Exclusions: Not suitable for franchises or certain partnership structures

💡 Adviser’s Tip

Olesya Krasavtseva
Olesya Krasavtseva Analytic & Editor at Prostobank Consulting

The ANZ GoBiz Unsecured Business Overdraft is a tech-driven liquidity tool comparable to the digital-first business lines of credit from Canada's Big Five, such as the RBC Clean Energy or BMO Business Line of Credit, which emphasize speed and data integration. Its primary advantage is the rapid, paperwork-free application process via accounting software and the lack of physical collateral requirements for amounts up to $200,000. The main disadvantage is the tiered annual Credit Facility Fee, which can be significantly higher than standard account fees if the limit is not frequently utilized. This product is ideally suited for modern, software-integrated Australian SMEs that need fast access to unsecured working capital to manage short-term cash flow volatility without the delay of traditional bank appraisals.

ANZ Bank

ANZ Business Overdraft

Sum: $2,000

💰 Fees & Rates

  • A fee is charged for the total approved limit
  • Interest is charged only on the balance outstanding, not the total limit
  • Interest is added to the amount owed

📋 Important Terms

  • Purpose: Must be used for business purposes
  • Eligibility: Available to business entities, including sole traders; directors/partners must be 18+
  • Security Options: Can be unsecured (individual/director guarantee may be required) or secured by residential, commercial, rural property, or business assets
  • Repayments: Flexible with no fixed or set repayment commitments required
  • Term: No minimum or maximum term length, though an expiry may be elected
  • Access: Funds accessible via ANZ transaction accounts, Internet Banking, Digital Wallets, and ATMs

💡 Adviser’s Tip

Olesya Krasavtseva
Olesya Krasavtseva Analytic & Editor at Prostobank Consulting

The ANZ Business Overdraft serves as a highly flexible revolving line of credit, mirroring the operating credit lines offered by Canada's Big Five such as RBC’s Operating Business Loan or TD’s Business Overdraft Protection. The primary advantage is the lack of rigid repayment schedules, allowing businesses to align debt reduction with their own seasonal cash flow cycles. The main disadvantage is the ongoing fee applied to the total limit regardless of usage, which can be inefficient for businesses that rarely dip into the facility. This product is best suited for Australian SMEs and sole traders who experience significant timing gaps between supplier payments and client receipts and need a reliable "safety net" for working capital.

Bank of Melbourne

Commercial Overdraft

💰 Fees & Rates

  • Establishment fees apply for setting up the facility.
  • Unarranged Lending Rate (Casual Overdraft Rate) of 15.01% p.a. applies to unauthorized spending.
  • Service fees and other administrative charges may apply.

📋 Important Terms

  • Eligibility: Business entities or individuals (18+) domiciled in Australia.
  • Unsecured Option: Exclusively available to existing Bank of Melbourne business customers.
  • Access: 24/7 availability of funds up to the approved limit linked to a business transaction account.
  • Interest: Charged only on the portion of the overdraft actually utilized.
  • Purpose: For business or investment use (excluding residential property investment).

💡 Adviser’s Tip

Olesya Krasavtseva
Olesya Krasavtseva Analytic & Editor at Prostobank Consulting

The primary advantage of this commercial overdraft is the "pay-as-you-use" interest model, which provides an exceptionally flexible safety net for managing seasonal cash flow gaps. The main disadvantage is the high 15.01% penalty rate for unarranged lending, which can become costly if the limit is exceeded without prior approval. Compared to "Big Five" banks like RBC or BMO, which often offer similar operating lines, the Bank of Melbourne provides a highly competitive Business Line Rate (7.40%) for secured facilities. This product is best suited for established Australian businesses with fluctuating receivables who need immediate, round-the-clock access to working capital to cover unexpected expenses or inventory purchases.

Bank of Queensland (BOQ)

Business Overdraft

Rate: 12.01% - 12.76%

Sum: $10,000