CommBank Personal Loans: Guarantors and Joint Applications

CommBank Guarantor and Joint Personal Loan Options

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

Understanding Personal Loan Applications

Borrowers looking to boost their borrowing power often wonder if they can use a guarantor to secure a Commonwealth Bank (CommBank) personal loan. A guarantor is typically a family member who legally agrees to pay back the debt if the primary borrower cannot. However, for personal loans, CommBank currently does not offer a specific guarantor structure. Guarantor support is generally reserved for property purchases through their Family Security Guarantee home loan product.

If your individual income does not support the loan amount you need for a car or a holiday, the bank provides an alternative pathway. You can submit a joint application with another person, such as a partner. When applying jointly, both applicants share equal legal responsibility for the entire debt, and the lending team assesses both incomes and expenses together to determine affordability.

Key Information and Requirements

Category Details
Application Methods NetBank (online), CommBank App, Phone, or Branch
Standard Processing Typically 1 to 2 business days for joint assessments
General Eligibility Both applicants must be 18+ and Australian residents
Key Requirements NetBank logins for both parties, verifiable income, shared expense details

Step-by-Step Joint Application Guide

Because direct guarantors are not available for this product, here is how you typically navigate the digital platform to apply for a joint personal loan:

1. Log on securely to NetBank via a desktop browser or open your CommBank app.

2. Navigate to the 'Products & Offers' tab and select 'Personal Loans'.

3. Choose your preferred loan type, and when prompted, select the option to apply with two applicants.

4. Enter the requested loan amount and the purpose of the funds (e.g., buying a used vehicle).

5. Fill in the financial details for both yourself and your co-applicant, including employment income and combined living expenses.

6. Review the summary screen, ensure both parties agree to the credit check, and submit the joint application for assessment.

Troubleshooting Common Application Errors

NetCode SMS Not Arriving for the Second Applicant
Cause: The mobile network might be experiencing temporary delays, or the co-applicant has an outdated phone number linked to their CommBank profile.
Fix: Have the second applicant restart their phone to refresh the signal, wait a few minutes, and use the 'Resend Code' prompt.
Fallback Action: Call the CommBank support line on 13 2221 to verify identity verbally and update the registered contact details before continuing.

Session Timeout During Data Entry
Cause: Banking platforms automatically end inactive sessions to protect your financial data, which often happens if you stop to find your partner's payslips.
Fix: Clear your browser cache, open a fresh window, and log back into NetBank to resume your saved draft.
Fallback Action: Switch to the CommBank mobile app, as the mobile environment often bypasses desktop browser cookie conflicts.

Digital ID Verification Failed for Joint Applicant
Cause: The details entered during the application do not exactly match the name and date of birth registered to the second applicant's NetBank profile.
Fix: Double-check that you are entering their full legal name exactly as it appears on their primary identification document.
Fallback Action: Visit your nearest CommBank branch together with valid photo ID so a staff member can manually verify the profiles and link the application.

Pro-Tip: Having both applicants route their salaries into a joint CommBank transaction account prior to applying typically speeds up the assessment. The internal system can digitally verify the combined income history, which often bypasses the need for manual payslip uploads.

Frequently Asked Questions

Why was our joint personal loan application referred for manual review?
When you submit a joint application, the automated system cross-references the stated income and expenses of both parties against current responsible lending criteria. If one applicant has fluctuating income, or if the declared living expenses fall below standard benchmarks, the system typically flags the file. A human assessor then reviews the details to ensure the bank meets regulatory compliance. What this means in practice is your application is simply waiting in a queue for a closer look. Check the CommBank app for status updates and have recent bank statements ready to upload if requested.

Can I remove a joint applicant from the loan later on?
Life circumstances change, and people sometimes wish to take full ownership of a shared debt following a relationship breakdown. However, a joint personal loan contract holds both parties equally liable for the balance until it is cleared. The banking system does not allow you to simply erase one name from an active unsecured loan. A key limitation here is that to take sole responsibility, you generally need to apply for a brand new personal loan in your name only, use those funds to pay off the joint debt, and close the old account. Call the CommBank lending team to discuss your single borrowing capacity before attempting to refinance.

What happens if my co-applicant misses a payment?
Because both individuals are fully responsible for the debt, a missed payment impacts both borrowers equally. The bank’s internal logic does not split the repayment liability 50/50; they expect the full minimum monthly amount regardless of who transfers the funds. If the account falls into arrears, it will typically affect the credit scores of both applicants. If you notice a payment has bounced due to insufficient funds in your partner's account, your best practical step is to log into NetBank, manually transfer the missing amount from your own funds to avoid late fees, and then contact CommBank to adjust your direct debit arrangements.

Official Bank Information

Commonwealth Bank (CBA)

Support: 13 22 21

SWIFT Code: CTBAAU2S

Video Guides

Watch our expert video reviews to navigate Australian banking with ease.

Bank's Services and Products

Find and compare the best banking products tailored to your financial goals.

Personal Banking

Personal credit cards

Show details
Credit limit range: 400 dol to 1500 dol No physical card provided (digital only) Monthly minimum repayments: 40 dol or less Access to CommBank Yello Cashback Offers No additional cardholders allowed Does not earn Awards points

Personal debit cards

Show details
Applicant must be at least 18 years old Must have an Australian residential address Must hold an existing linked standard Debit Mastercard to upgrade Must be linked to an eligible CommBank transaction account Includes complimentary international travel insurance for trips up to 21 days (requires activation) Includes two complimentary airport lounge passes worldwide via Mastercard Travel Pass Features Price Guarantee, Purchase Security, and Extended Warranty insurances

Personal savings accounts

Show details
Must be 14 years or older to apply Requires a linked eligible CommBank transaction account Introductory bonus rate of 4,95% p.a. applies for the first 5 months

Personal transaction accounts

Show details
Must be 14 years or older Requires identity verification at a branch within 20 days if applying from overseas Includes physical and digital Debit Mastercard Eligible for CommBank Yello rewards with 5+ transactions monthly Access to digital tools like Bill Sense and Spend Tracker

Loans & Mortgages

Personal Car loans

Show details
No vehicle security or collateral is required Offers complete flexibility to make unlimited extra repayments without any fee Includes a redraw facility to access available funds if needed

Personal Home Loans

Show details
Discount margins vary based on Loan to Value Ratio (LVR) tiers up to 95% Freedom to split the loan and utilize multiple Everyday Offset accounts Interest Only payments available for up to 5 years (Owner Occupied) or 15 years (Investment) Minimum topup amount is 10000 AUD Variable rate is not protected from interest rate increases

Personal loans

Show details
No security or collateral required Includes a redraw facility to access extra funds paid into the loan Discounted rates available for eligible energyefficient purchases Repayments may fluctuate if the interest rate changes Repayment frequencies available: weekly, fortnightly, or monthly

Business Solutions

Business accounts

Show details
Must have an Australian Business Number (ABN) or Australian Company Number (ACN)Applicant must be at least 18 years oldRequires an existing eligible Commonwealth Bank AUD accountAccount must be used strictly for business purposesInterest is paid monthly on selected currencies based on balance tiersOnline application available for sole traders, Pty Ltd companies, SMSFs, and partnerships

Business car loans

Show details
Must have a current ABN and a minimum of 12 months trading history The financed vehicle or equipment serves as the loan security Optional balloon payments available to reduce ongoing monthly commitments Repayments can be customized to align with seasonal business cashflows Discount of up to 1,00% p.a. available for eligible green and efficient vehicles

Business credit cards

Show details
Up to 55 days interestfree period on purchases Minimum unsecured credit limit of 500 AUD, maximum up to 50000 AUD Includes Transit Accident Insurance and Unauthorised Transaction Insurance Access to personalized CommBank Yello Cashback Offers Features 24/7 emergency overseas assistance

Business loans

Show details
Must have a current ABN and a minimum of 12 months trading history The financed vehicle or equipment serves as the loan security Optional balloon payments available to reduce ongoing monthly commitments Repayments can be customized to align with seasonal business cashflows

Business savings

Show details
Allows early withdrawal of up to 20% of the balance without penalty fees or interest adjustmentsRequires a CommBank business transaction account in the same business nameMust have an Australian Business Number (ABN)

Find bank, branch or ATM

Locate the nearest financial services, interactive maps, and contact details across Australia.