Pillar Guide · Updated July 2026
Personal Guarantees on Business Loans: A Complete UK Guide for 2026/27
Many lenders will not provide finance to a small limited company without a director signing a personal guarantee — a promise that undermines the very limited liability the company structure is meant to provide. This guide explains how personal guarantees work, what a director is actually agreeing to, ways to limit the risk, and what happens if the business cannot repay.
What a Personal Guarantee Is
A personal guarantee is a legally binding promise, given by a director or shareholder in their personal capacity, that they will repay a business loan or other finance out of their own money and assets if the company itself cannot repay it. It is a separate legal agreement from the loan itself, signed by the individual rather than the company, meaning the lender can pursue that person's personal assets even though the loan was made to a limited company.
Why Lenders Ask for One
Limited company status normally protects directors' and shareholders' personal assets from the company's debts, which reduces the risk to those running the business but increases risk for a lender if the company has few valuable assets of its own to offer as security. Many banks and alternative lenders address this by requiring a personal guarantee from directors, especially for young companies, unsecured loans, and businesses without significant assets to charge as collateral.
What a Director Actually Risks
Signing a personal guarantee exposes a director's personal assets — savings, and potentially their home if it is used as security or a charge is later obtained — to the lender's claim if the company defaults and cannot repay the debt in full. This is a significant departure from the normal principle of limited liability, and directors should treat a personal guarantee as a real, enforceable personal debt rather than a formality.
Limited vs Unlimited Guarantees
A limited guarantee caps the director's personal exposure at a specific amount, such as a percentage of the loan or a fixed sum, regardless of how much the company ultimately owes, whereas an unlimited guarantee makes the director personally liable for the full outstanding debt, including interest and the lender's recovery costs, with no cap at all. Directors should always check carefully which type of guarantee they are being asked to sign.
Joint and Several Guarantees
Where more than one director signs a guarantee, it is often on a 'joint and several' basis, meaning the lender can pursue any one guarantor for the full amount owed, not just their proportionate share, leaving that individual to seek a contribution from the other guarantors separately if they can. This is an important distinction from a guarantee that is genuinely split so each director is only liable for their own agreed portion.
Personal Guarantee Insurance
Personal guarantee insurance is a specialist product that can cover a portion (commonly up to around 80%) of a director's exposure under a personal guarantee if the lender calls on it following business failure, in exchange for a premium, giving some financial protection without needing to renegotiate the underlying loan terms with the lender. It does not remove the guarantee itself, and directors remain contractually bound to the lender regardless of any insurance policy in place.
Negotiating the Terms
Before signing, it is worth trying to negotiate a lower cap on a limited guarantee, a guarantee split proportionately between multiple directors rather than joint and several, a guarantee that reduces in stages as the loan is repaid, or offering specific company or personal assets as security instead of an open-ended personal guarantee. Lenders will not always agree, but terms are often more negotiable than they first appear, particularly for established businesses with a trading history.
What Happens If the Business Fails
If the company enters insolvency and cannot repay the guaranteed debt, the lender can call on the personal guarantee and pursue the director directly for the shortfall, which can include obtaining a County Court Judgment, applying for a charging order against the director's home, or in serious cases petitioning for the director's personal bankruptcy if the debt remains unpaid. Directors facing this situation should seek independent debt or insolvency advice promptly rather than ignoring demands.