Skip to content

Who Can Guarantee a Commercial Lease for a Tenant?

Summary

  • A commercial lease guarantor makes a legally binding promise to fulfil a tenant’s lease obligations if the tenant defaults, including paying rent shortfalls or taking over the lease.
  • A guarantor can be an individual acting in a personal capacity or a company with sufficient capacity under its articles of association.
  • Individual guarantors assume personal liability, which means their personal assets are at risk; company guarantors are liable only to the extent of the company’s assets.
  • This guide explains who can guarantee a commercial lease for tenants operating businesses in the UK.
  • LegalVision’s business lawyers specialise in advising clients on commercial lease guarantees and tenant obligations.

Tips for Businesses

Check whether your lease requires a replacement guarantor if the original becomes insolvent. If you are a director asked to guarantee personally, review the company’s assets first: a company guarantee limits liability to company assets. Get separate legal advice before signing any personal guarantee.

Summarise with:
ChatGPT logo ChatGPT Perplexity logo Perplexity

On this page

A commercial lease guarantor is a legal role in which an individual or company promises to fulfil a tenant’s obligations under a UK commercial lease. Under English property law, a guarantee is a secondary liability: it is only enforceable where it is in writing and signed by the guarantor or an authorised representative. Landlords most commonly request a guarantor from tenants with poor covenant strength, meaning the tenant lacks the financial standing to satisfy long-term lease obligations comfortably. A company acting as guarantor assumes liability to the extent of its assets; an individual guarantor assumes personal liability. This article will explain who can guarantee your commercial lease in the UK. This article will explain who can guarantee your commercial lease in the UK.

Commercial Lease 

A commercial lease allows you to have exclusive possession of a property to conduct your business. You do so for a specific time, which is the lease term. In return, you pay your landlord rent and have specific obligations under the lease and corresponding rights. A commercial lease agreement will detail both parties’ rights and responsibilities in the commercial lease. As the tenant, your obligations can include the following:

  • paying rent;
  • complying with certain requirements (like repairs, decoration and reinstatement) at the lease end date;
  • paying any other costs such as a service charge or insurance rent; and 
  • meeting your repair and maintenance responsibilities.

Key Statistics 

  1. 23,872: company insolvencies in England and Wales in 2024, down 5% from 2023’s 30-year high. Source:
  2. Over half of UK private landlords requested a guarantor or rent in advance for their most recent letting.
  3. Around 3% of landlords formally pursued guarantors for unpaid rent in the two years to 2024, suggesting guarantees function primarily as deterrents.

Sources

  • Ministry of Housing, Communities and Local Government, English Private Landlord Survey 2024
  • Insolvency Service, January 2025

Guarantor

A guarantee is a legal promise. A guarantor to a tenant in a commercial lease is a person who guarantees that yA guarantee is a legal promise. A guarantor to a tenant in a commercial lease is a person who guarantees that the tenant will fulfil its obligations under the lease agreement. They will usually do this from the date you enter the lease, and until the lease terminates or is assigned to another tenant, or sometimes even after an assignment. Therefore, your guarantor must carry out the your obligations if you do not adhere to them, or they may be financially liable. This can include, for example, to:

  • make up any shortfall in rent;
  • pay for a default in the lease;
  • be sued for damages; or
  • take over your role in the commercial lease.

A commercial landlord may ask you to provide a guarantor when taking a new lease from them. A similar concept is an authorised guarantee agreement (AGA), which is used where the tenant wants to assign the lease to a third party. In this context, you would guarantee the conduct of the incoming tenant under the AGA, in addition to any original guarantors who remain as guarantors under the lease.

A guarantor provides a commercial landlord with:

  • reassurance that tenant will carry out its lease obligations; and
  • the security they can rely on if it does not.

Your commercial landlord will likely ask you to provide a guarantor if you have ‘poor covenant strength’, which means you do not have the financial resources to manage the financial commitments under the lease comfortably. This often applies to a newly created company with no trading history, rather than to an individual signing up to be a tenant.

Contractual Provisions

Often, your lease will also contain provisions that cover situations in which you would need a change of guarantor. For example, if your guarantor becomes bankrupt or insolvent, the landlord may require you to obtain a new guarantor. It is uncommon to have a lease that allows release of the guarantor from their responsibilities for specific reasons. Usually, guarantees are very stringent and difficult to avoid. Becoming a guarantor can be a material risk to that person, and they should carefully consider their financial liabilities if the tenant were to default on its obligations. 

Front page of publication
UK Lease Assignment Template

If you are moving out of your leased space and assigning the lease to another party, you are required to notify your landlord and obtain their consent. Use this free proforma template for this purpose.

Download Now
Continue reading this article below the form
Need legal advice?
Call 0808 196 8584 for urgent assistance.
Otherwise, complete this form, and we will contact you within one business day.

Who Can Be a Guarantor?

A guarantor can be either an individual or a company with the necessary capacity. 

Company

A company with capacity means it has the power to act as a guarantor for your commercial lease. This derives from its memorandum or articles of association. Any company director offering a guarantee on behalf of a company should be able to demonstrate they do so to:

  • promote their company’s success;
  • promote your success; and 
  • that the company constitution has correctly approved it.

When a company is the commercial lease guarantor, it is the company that makes the promise and will fulfil your lease obligations in the event that you fail to do so. As such, this typically means that the guarantor’s liability is limited to the company’s assets, rather than the director’s personal finances.

Individual

Unlike a company director who offers their company as a guarantor for the tenant, an individual guarantor promises to meet the obligations and/or liability of the tenant if it fails to do so in a personal capacity. This means that they adopt personal liability for the tenant’s lease obligations. 

An individual who acts as a guarantor in a commercial lease risks losing all their personal assets if you fail to fulfil the commercial lease. In the context of a newly formed company tenant, this is often a guarantee from the directors of that business rather than a third-party individual or a shareholder. That individual should get legal advice on the guarantee separately to the tenant as it affects them personally.

Key Takeaways

When you enter a commercial lease or request permission to assign it to another person to be the tenant, you may be required to provide a guarantor for the tenant’s obligations in the commercial lease. A guarantor will guarantee that you fulfil your obligations in the commercial lease agreement, thus making a legal promise. Where the tenant does not fulfil their legal obligations, they must do so. A guarantor can be an individual person or a company with capacity.

If you need help understanding who can be your guarantor in a commercial lease in the UK, our experienced leasing lawyers can assist as part of our LegalVision membership. For a low monthly fee, you will have unlimited access to lawyers to answer your questions and draft and review your documents for a low monthly fee. Call us today on 0808 196 8584 or visit our membership page.

Frequently Asked Questions

What are the alternatives to providing a guarantor for a commercial lease?

If you cannot provide a guarantor, you may offer a rent deposit deed, a charge over an asset, or ask additional parties to join the lease as co-tenants. Each option carries different risks and your landlord must agree to accept them in place of a guarantee.

When can a commercial landlord pursue a guarantor for unpaid rent?

A landlord can pursue a guarantor once a tenant breaches the lease, but must first comply with any notice provisions in the lease agreement. Where an authorised guarantee agreement applies, the landlord must give six months’ notice from the date the rent payment was due.

What is an authorised guarantee agreement?

An authorised guarantee agreement is a contract in which an outgoing tenant guarantees the performance of the incoming tenant following a lease assignment. It makes the outgoing tenant liable for any breach committed by the new tenant after the assignment takes effect. (

What is a guarantor for a commercial lease? 

A guarantor for a commercial lease is a person or company with capacity that guarantees the commercial tenant will carry out their lease obligations and do so for them should they not.

Register for our free webinars

Sexual Harassment: What Every Business Needs to Know Now

Online
Join our free webinar to understand new sexual harassment laws, your obligations as an employer, and how to protect your business.
Register Now

2026 Legal Changes: What In-House Counsel Need to Act on Now

Online
Learn how 2026 UK legal reforms may affect in-house legal teams, from employment and governance to data and consumer law.
Register Now

Director Duties 101: What Every Director Needs to Know

Online
Understand your duties as a company director and how they apply to key decisions when growing a startup. Register for free today
Register Now

Fake Reviews and Real Consequences: Protecting Your Business Reputation

Online
Learn how to manage online reviews and avoid breaching the UK's new fake review laws. Register for our free webinar
Register Now
See more webinars >

Louise Robillard

Solicitor | View profile

Louise is a Solicitor in the Leasing and Franchising team. She graduated with a BA in Politics and International Relations from the University of Nottingham in 2022. More recently, she passed the SQE1 examinations and earned a Master of Arts in Law from the University of Law.

Read all articles by Louise

About LegalVision

LegalVision is an innovative commercial law firm that provides businesses with affordable, unlimited and ongoing legal assistance through our membership. We operate in Australia, the United Kingdom and New Zealand.

Learn more

LegalVision is an award-winning business law firm

  • Award

    2025 Future of Legal Services Innovation Finalist - Legal Innovation Awards

  • Award

    2024 Law Company of the Year Finalist - The Lawyer Awards

  • Award

    2024 Law Firm of the Year Finalist - Modern Law Private Client Awards

  • Award

    2023 Economic Innovator of the Year Finalist - The Spectator

  • Award

    2023 Law Company of the Year Finalist - The Lawyer Awards