A Personal Guarantee is a legally binding agreement under which an individual (the guarantor) promises to be personally responsible for the debts or obligations of another person or entity (the principal debtor) to a creditor, in the event that the principal debtor fails to perform those obligations. In England and Wales, personal guarantees are governed by common law principles and must comply with the formal requirements of section 4 of the Statute of Frauds 1677, which requires a guarantee to be evidenced in writing and signed by the guarantor.

Personal guarantees are a cornerstone of commercial lending and business relationships in the United Kingdom. Banks, landlords, suppliers, and other creditors routinely require personal guarantees from company directors, shareholders, or other individuals as a condition of extending credit, granting a lease, or entering into a commercial arrangement with a limited company. The guarantee provides the creditor with additional security beyond the assets of the principal debtor, giving the creditor recourse against the personal assets of the guarantor in the event of default.

It is essential to understand the distinction between a guarantee and an indemnity under English law. A guarantee is a secondary obligation: the guarantor's liability arises only if and when the principal debtor defaults. An indemnity is a primary obligation: the indemnifier is liable regardless of whether the principal debtor is liable. This distinction has important legal consequences. Because a guarantee is secondary, it must comply with the Statute of Frauds 1677 and the guarantor's liability cannot exceed that of the principal debtor. If the underlying obligation is void or unenforceable, the guarantee falls away. An indemnity, being primary, is not subject to the Statute of Frauds and survives even if the underlying obligation is void.

The law of personal guarantees in England and Wales has been significantly shaped by the landmark decisions of the House of Lords (now the Supreme Court) in Barclays Bank plc v O'Brien [1994] 1 AC 180 and Royal Bank of Scotland v Etridge (No 2) [2001] UKHL 44. These cases established the principles governing the circumstances in which a guarantee may be set aside on grounds of undue influence or misrepresentation, and the steps a creditor must take to protect the enforceability of the guarantee.

A Personal Guarantee is required in a wide range of commercial and personal situations in England and Wales. Understanding when a guarantee is needed, and the risks it creates for the guarantor, is essential before entering into such a commitment.

The most common situation is commercial lending. When a bank or other lender extends a loan, overdraft facility, or credit line to a limited company, the lender will often require one or more of the company's directors or shareholders to provide personal guarantees. This is because a limited company has separate legal personality under section 16 of the Companies Act 2006, meaning the company's shareholders and directors are not personally liable for its debts. A personal guarantee pierces this corporate veil by creating a direct obligation between the guarantor and the lender.

Commercial leases are another frequent context. Landlords of commercial premises often require personal guarantees from company directors as a condition of granting a lease to a limited company. If the company fails to pay rent or comply with its lease obligations, the landlord can pursue the guarantor personally for the outstanding amounts.

Supplier and trade credit arrangements may also require personal guarantees. A supplier who provides goods or services on credit terms to a new or financially unproven company may require a personal guarantee from a director to mitigate the risk of non-payment.

Intra-group lending, where a parent company guarantees the obligations of a subsidiary, is common in corporate groups. While this is technically a corporate guarantee rather than a personal guarantee, the legal principles are similar.

Finally, personal guarantees are used in private lending arrangements between individuals, where a third party guarantees the borrower's obligations. This is common in family or friendship contexts, where a parent guarantees a child's loan or a business partner guarantees a colleague's debt.

Guarantors should be aware of the significant personal financial risk they assume. If the principal debtor defaults, the creditor can pursue the guarantor's personal assets, including their home, savings, and other property. The guarantor should always seek independent legal advice before signing, as recommended by the House of Lords in Royal Bank of Scotland v Etridge (No 2) [2001] UKHL 44.

A well-drafted Personal Guarantee for use in England and Wales must contain several essential provisions to be enforceable and to protect the interests of all parties.

Compliance with the Statute of Frauds 1677 is the threshold requirement. Section 4 of the Act requires that a guarantee must be evidenced in writing and signed by the guarantor. An oral guarantee is unenforceable, regardless of the circumstances. The written document must identify the guarantor, the principal debtor, the creditor, the guaranteed obligations, and the consideration for the guarantee.

The scope of the guaranteed obligations must be clearly defined. The guarantee may cover all sums due from the principal debtor to the creditor (an all-monies guarantee), or it may be limited to specific obligations (such as a particular loan agreement or lease). The guarantor should understand precisely what obligations they are guaranteeing.

The maximum liability cap is a critical protection for the guarantor. Without a cap, the guarantor's exposure could be unlimited. The cap should be expressed as a specific monetary amount in pounds sterling and should clearly state whether it includes or excludes interest, costs, and expenses.

The demand provisions specify the procedure the creditor must follow before calling on the guarantee. This typically includes giving the guarantor a specified number of days' written notice and identifying the nature and amount of the principal debtor's default.

The independent legal advice confirmation is strongly recommended following the Etridge decision. The guarantor should confirm in the guarantee that they have received independent legal advice from a named solicitor about the nature, effect, and risks of the guarantee. This protects both the guarantor and the creditor from future challenges based on undue influence or misrepresentation.

The waiver of defences clause is common in commercial guarantees. Under the common law principle from Holme v Brunskill (1878), a guarantor may be discharged from liability if the creditor varies the underlying agreement without the guarantor's consent. A properly drafted waiver clause prevents this by providing that the guarantor's liability is not affected by variations, extensions of time, the release of security, or other acts.

The subrogation clause preserves the guarantor's right to step into the creditor's shoes and recover from the principal debtor any amounts paid under the guarantee, but only after all guaranteed obligations have been discharged in full. This prevents the guarantor from competing with the creditor in the debtor's insolvency.

The governing law and jurisdiction clause should specify that the guarantee is governed by the laws of England and Wales, with exclusive jurisdiction conferred on the courts of England and Wales. The witness requirement is important: while a guarantee executed as a simple contract does not technically require witnessing, having a witness provides valuable evidence of authenticity and voluntary execution.