Can my spouse be asked to guarantee a business loan?
Yes, most often where the family home is the security and your spouse is on the title, because a lender cannot take a mortgage over a property without every owner agreeing to it. A spouse who is not a director and holds no interest in the security is asked far less frequently. Anyone signing a guarantee should get independent legal advice first. Most lenders insist on a certificate confirming they did.
Why a lender asks your spouse
Where the property offered as security is held jointly, both owners sign the mortgage. The owner who is not borrowing usually signs a guarantee as well so the lender can enforce against the whole property rather than half of it. Directorship is the other trigger. A spouse who is a director or shareholder is generally treated like any other director on the file. Beyond those two situations, a lender asking a spouse with no stake in the business and no security to guarantee is worth questioning, because there is often another way to structure the deal.
Independent advice before anyone signs
Guarantees are enforceable and they can cost people the roof over their head, which is why lenders require the guarantor to see their own solicitor rather than yours. The solicitor explains what the guarantee covers, whether it is capped at an amount and what happens if the business cannot pay. Take the time over it. Ask what the cap is, whether the guarantee can be released once the debt reduces and what the lender has to do before calling on it. If those answers are not written into the offer, they are not commitments.
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Last updated 15th July 2026. Reviewed by Authorised Credit Representative 554584 of Australian Credit Licence 414426.