Short answer: yes. A guarantor is only useful if the lender sees them as a strong backstop. If your guarantor has defaults, missed payments or stretched finances, they can add little, or even count against the application. Here's how lenders look at it.
What a guarantor does
A guarantor promises to repay the loan if you can't. The lender can pursue them for the full amount owing, plus costs. That's why lenders assess a guarantor almost as carefully as the borrower.
What lenders check about a guarantor
- Credit file: defaults, repayment history, insolvency
- Income and existing debts: could they actually afford the repayments if needed?
- Assets: some lenders prefer guarantors who own property
- Residency: usually an Australian citizen or permanent resident
- Relationship: usually a close family member
When a guarantor genuinely helps
- You have a thin credit history, for example as a young borrower or recent arrival, but stable income
- You're on a temporary visa and the lender wants extra security
- Your guarantor has a clean file, solid income and ideally property
Alternatives if your guarantor isn't strong
- Save a larger deposit
- Choose a cheaper car and a smaller loan
- Spend a few months improving your own credit and statements
- Consider a different guarantor, if someone suitable genuinely wants to help
For guarantors: read this first
- You're taking on a real legal obligation. If the borrower stops paying, the lender can come to you.
- Missed payments on the loan may affect your credit file.
- Get independent legal or financial advice before signing. Many lenders require it or strongly recommend it.
- Don't guarantee more than you could afford to repay yourself.
Not sure if you need a guarantor? Tell us your situation in about 60 seconds and a licensed broker will call you. There may be options without one. No credit check to enquire.
Related guides
- Does your partner's credit score affect your loan?
- Secured car loans with poor credit
- Bad credit car finance
General information only. This isn't legal or financial advice. Guarantors should get independent advice. Finance the Ride is a referral service and doesn't hold an Australian Credit Licence. Last reviewed September 2026.