Undertakings in Loan Deals: Borrower Promises Decoded

Alex Solo
byAlex Solo9 min read
If you’re thinking about taking out a business loan, or negotiating the sale or purchase of a business, you’ll soon encounter a term that might sound a little mysterious: “undertaking”. This concept crops up everywhere in commercial deals, especially in loan agreements. But what does an undertaking actually mean for you as a business owner-and why do lenders insist on them? Don’t worry if you’re feeling unsure about the legal side of loan deals-understanding undertakings is simpler than you think. Whether you’re the borrower, the seller, or the buyer in a business transaction, knowing what undertakings are (and how they work) is absolutely crucial to protecting your interests and running a successful business. In this guide, we’ll break down what an undertaking really is, why it matters, common types you’ll encounter, and what happens if things go wrong. Let’s decode these borrower promises so you can sign your next agreement with confidence.

What Is an Undertaking in a Loan Agreement?

Let’s start simple. In legal terms, an “undertaking” is a binding promise made in a contract. In the context of loan agreements, undertakings are the commitments that borrowers (and sometimes other parties) make to either do something or not do something during the life of the loan. So, when we look at the undertakings definition, this is what we find:
  • Definition of undertaking: A legally enforceable promise by a party (usually the borrower) to either carry out a specific action, or refrain from a certain action, as a condition of a contract (like a loan agreement).
In other words, an undertaking is a way for the lender to protect their interests and make sure the borrower doesn’t do anything that could put the loan at risk. If you’re “giving an undertaking”, you’re making an official promise that’s just as serious as any other term in your contract.

Why Do Loan Agreements Include Undertakings?

Great question. Lenders are taking a risk by providing money to a business. To manage that risk, they want to be sure that the borrower won’t do anything that could reduce their chances of being repaid. That’s where undertakings come in-by setting out clear promises, the lender can:
  • Protect the value of their security (for example, making sure the business doesn’t sell critical assets without permission).
  • Ensure the business is run prudently (like obliging the borrower to maintain proper insurance or keep accurate records).
  • Receive regular information about the borrower’s financial health to spot warning signs early.
  • Prevent the borrower from taking excessive risks, such as taking on more debt or making drastic changes without approval.
Ultimately, undertakings create a framework of trust and certainty in business lending. They give both sides a clear sense of what’s expected, and what could happen if things don’t go to plan.

Types of Undertakings: What Should You Look Out For?

In loan documentation, undertakings are usually split into two broad categories: affirmative (or positive) and negative undertakings. Let’s take a closer look at what each of these involves, with some practical examples thrown in.

Affirmative Undertakings (Also Called Affirmative Covenants)

Affirmative undertakings require the borrower (or sometimes another party) to perform specific actions throughout the term of the loan. These are the “I promise I will…” type of obligations. Common examples in UK business loan agreements include:
  • Providing regular financial statements – for example, monthly or quarterly management accounts, or audited annual accounts.
  • Complying with laws and regulations – keeping the business operations legal and above board at all times.
  • Maintaining insurance – like building, contents, or public liability cover for the business.
  • Paying all taxes on time – making sure there are no surprises when it comes to HMRC.
  • Notifying the lender of material changes – including any claims, disputes, defaults, or major opportunities or risks affecting the business.

Negative Undertakings (Also Called Negative Covenants)

Negative undertakings, on the other hand, are “I promise I won’t…” statements. They limit certain actions by the borrower unless the lender gives their consent. Typical examples include:
  • Not incurring additional debt – restricting the borrower from taking out further loans or credit lines.
  • Not selling or disposing of assets – especially key business assets that underpin the loan security.
  • Not paying dividends or distributing profits to shareholders without lender approval.
  • Restricting changes to business structure – for example, not merging, restructuring, or changing ownership without discussing it with the lender.
  • Not providing guarantees or security to other creditors, which might compromise the lender's position.
Together, these promises help keep your business running smoothly and predictably from the lender’s perspective. They also mean you’ll need to keep the lender in the loop about any big decisions.

Are Undertakings Enforceable? What Happens If You Breach One?

Absolutely-undertakings are just as binding as every other term in your loan agreement. If you breach an undertaking (meaning you fail to do what you promised, or you do something you weren’t supposed to), you may be in default under the terms of your loan. Here’s what can happen if you don’t comply:
  • The lender might demand early repayment (often called “calling in” the loan).
  • They could enforce their security-for example, taking charge of your business assets or property.
  • You may face additional penalties or charges.
  • The lender could take legal action to recover money or damages.
  • Your business’s reputation and credit rating might suffer, making future financing harder to obtain.
It’s not all doom and gloom-lenders are often willing to discuss issues if you keep them updated proactively. However, this underlines why it’s so important to fully understand every undertaking before you sign any loan agreement. Breaking one can have serious knock-on effects for your business.

How Do Undertakings Apply in Business Sales and Purchases?

Undertakings aren’t just limited to traditional loan deals. If you’re buying or selling a business, undertakings might be used as part of the transaction to manage risk, settle liabilities, or protect the value of what’s being transferred. Here are some scenarios where you might encounter undertakings in business sale and purchase agreements:
  • Non-compete undertakings, where the seller promises not to set up a competing business within a certain time or geographical area after the sale.
  • Debt settlement promises, for example, where the seller undertakes to pay off certain business debts before or immediately after completion.
  • Transitional support, where the seller agrees to stay on for a defined period to train staff or hand over relationships.
  • Warranties and indemnities-sometimes classified as undertakings-ensuring the business is being sold “as described”.
Both buyers and sellers need to be aware that any such undertaking is enforceable after the sale is completed. If you promise something as part of a business sale, you can be held to it. To read more about legal documents involved in business sales, see our Checklist For Selling Your Business guide.

How Are Undertakings Negotiated and Documented?

When you’re reviewing a draft loan agreement-or a business sale contract-you’ll often see a whole section headed “Undertakings” or “Covenants”. This part will spell out the do’s and don’ts in plain language, but sometimes the details (and hidden traps) are more subtle. Here’s what you need to keep in mind:
  • Every undertaking is negotiable in principle. If a promise feels too restrictive, you may be able to agree a modification with the other party.
  • It’s essential to understand how long each undertaking lasts. Some apply only until the loan is paid off; others may run for years.
  • Check for “materiality” thresholds-sometimes you’re only in breach if an action has a major impact, such as disposing of assets over a certain value.
  • If you’re entering a business sale, be especially careful with non-compete undertakings-they must be reasonable to be enforceable under UK law.
When in doubt, always have an expert review the wording. Borrowers should also avoid giving undertakings that relate to future events they can’t control, or to circumstances that might change as their business grows.

Examples of Undertakings in Loan and Business Deals

Still not sure what an undertaking might look like in practice? Here are a few real-world UK examples you might find in your next deal:
  • “The Borrower shall maintain in full force and effect all insurances required by law and necessary for the continued business operation.”
  • “The Borrower shall not, without the prior written consent of the Lender, incur any financial indebtedness other than the Loan.”
  • “The Seller undertakes to clear all employee wage arrears prior to Completion.”
  • “The Buyer undertakes to retain existing employees for at least 12 months post-Completion, unless otherwise agreed.”
Each of these promises, once included in a signed agreement, becomes a binding requirement – and failing to meet it could mean breaching the contract. That’s why reviewing (and fully understanding!) every undertaking before signing is critical. Undertakings play a central role in your business obligations. Here are the key things every business owner or executive should consider before giving-or accepting-an undertaking:
  • Understand exactly what you’re promising (and, if possible, have this explained by an expert).
  • Check whether the undertaking is reasonable and achievable for your business, not just at the time of signing but throughout the agreement.
  • Know the triggers for default (what specifically counts as “breach”?).
  • Be clear on the consequences of a breach-could you lose your financing, face penalties, or trigger litigation?
  • Make sure you have systems in place to monitor your compliance with ongoing undertakings (for example, regular calendar reminders or internal audits).
  • Consult a legal expert for help negotiating or rewording particularly onerous or ambiguous undertakings.
If you’re entering a new commercial relationship, setting up your legal foundations properly is the best insurance you can have. For more on building a solid framework for your business, see our overview on Essential Legal Documents For Business.

Practical Tips: How To Manage Undertakings From Day One

Now that you know what undertakings mean and why they matter, here’s how you can take control:
  • Review your loan or sale documents with a fine-tooth comb-don’t gloss over the “boilerplate” undertakings section.
  • If you’re unclear on the language or the risk involved, don’t hesitate to get qualified advice.
  • Request amendments before signing if you think a promise is unworkable or unfair (it’s better to negotiate than to breach later).
  • Put in place simple systems-for example, checklists, reporting calendars, or delegated tasks-to help you keep your promises without the stress.
  • If circumstances change, proactively discuss them with the lender or other party before you’re technically in breach. Open communication is key.
  • If you’re unsure about the implications of particular undertakings in relation to your business structure, read up on different structures (like Sole Trader vs Company) to see how your obligations might shift.
The bottom line: Treat undertakings seriously, but don’t be afraid of them. With the right approach and set-up, they’ll help protect your business relationships and pave the way for successful borrowing, lending, and transactions.

Key Takeaways

  • An undertaking is a legally-binding promise-usually in a loan or sale agreement-that you will do (or won’t do) something specific.
  • Undertakings help lenders manage risks and ensure borrowers run their businesses in a way that protects the loan’s value.
  • There are two main types: affirmative (positive) undertakings and negative undertakings, each with practical business impacts.
  • Breach of an undertaking can have serious consequences, such as triggering early loan repayments, penalties, or even legal action.
  • Undertakings are especially significant in both loan agreements and business sale/purchase deals-always review them thoroughly.
  • You should always seek specialist legal advice before entering into agreements with undertakings to ensure you fully understand your rights and duties.
If you’d like help reviewing or understanding undertakings in your loan or business sale deals, Sprintlaw’s experienced lawyers are here to support you. You can reach us at 08081347754 or email team@sprintlaw.co.uk for a free, no-obligations chat.
Alex Solo

Alex is Sprintlaw's co-founder and principal lawyer. Alex previously worked at a top-tier firm as a lawyer specialising in technology and media contracts, and founded a digital agency which he sold in 2015.

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