Debt Contracts In The UK: What To Include And When They’re Regulated

Whether you’re lending money to a customer, advancing funds to a supplier, or documenting funds you’ve put into your own company, a clear debt contract is essential. It sets the rules for repayment, interest, security and default - and it’s often the difference between a smooth recovery and a costly dispute.

In this guide, we’ll break down what a “debt contract” actually is, when UK regulation might apply, the key clauses to include, and a practical, step‑by‑step way to get one signed and enforceable. We’ll also touch on options if things change - like assigning the debt, restructuring, or enforcement.

What Is A Debt Contract?

A “debt contract” is a broad term for any written agreement that records money owed and the terms for paying it back. In business, the most common forms are:

• Loan Agreement - a comprehensive contract setting out principal, interest, fees, repayment schedule, security, covenants, and defaults. If you need a fuller form, a professionally drafted Loan Agreement is usually the right tool.
• Promissory Note - a simpler, stand‑alone promise to pay a sum by a date, sometimes with interest. Notes suit straightforward, short‑term borrowings where you don’t need lots of covenants. You can read more in our guide to the Promissory Note.
• Trade/credit terms - your terms of trade may give a customer credit (for example, payment due 30 days from invoice) and create a debt if they don’t pay on time.

Which format you choose depends on the amount, risk, relationship and whether you need security or guarantees. As a rule of thumb, the higher the value and risk, the more detail and protections you’ll want in the contract.

Is Your Debt Contract Regulated In The UK?

Before you sign anything, consider whether any financial services regulation applies. Many business‑to‑business loans are unregulated, but there are important exceptions and related laws to be aware of.

• Consumer Credit Act 1974 (CCA) - The CCA regulates consumer credit and certain small business borrowing where the borrower is an “individual” (which includes sole traders and some small partnerships) and the credit is not wholly for business purposes, or falls into other regulated categories. If you’re lending to a sole trader or small partnership, get advice to check whether the agreement is “regulated” and whether FCA permissions, pre‑contract information, form and content rules, or cancellation rights apply.
• Financial Services and Markets Act 2000 (FSMA) - Carrying on a regulated activity (such as consumer credit lending or credit broking) without FCA authorisation can be an offence. If your business regularly lends to consumers or small unincorporated businesses, you may need to assess authorisation and compliance.
• Late Payment of Commercial Debts (Interest) Act 1998 - For purely commercial contracts, if your terms don’t specify interest, you can usually claim statutory interest (currently 8% above the Bank of England base rate) and fixed‑sum compensation for late payment on qualifying invoices. Many SMEs rely on this as a backstop for late‑paying customers.
• Companies Act 2006 - If you’re taking security over a company’s assets, certain charges must be registered at Companies House within 21 days (s859A) to avoid losing priority. Director or shareholder loan arrangements also intersect with director duties and accounting disclosures.
• Data Protection Act 2018 and UK GDPR - If you collect personal data (for example, on a personal guarantor), you must process it lawfully, transparently and securely, and provide a compliant Privacy Policy.
• Electronic signatures - Most simple contracts can be signed electronically in the UK. Deeds (for example, a deed of guarantee) have extra execution formalities, including witnessing, and often benefit from “wet‑ink” or verified e‑sign workflows.

If you’re unsure where your arrangement sits, it’s worth getting tailored advice - the regulatory line depends on the parties, the purpose of the credit and how you structure the agreement. Choosing the right format up front saves hassle later.

Key Clauses Small Businesses Should Include

A solid debt contract manages both repayment and risk. At minimum, consider including:

• Parties and capacity - Full legal names and company numbers. If you’re lending to a company, think about a personal guarantee from a director.
• Principal and drawdown - Exact amount and when/how it’s advanced.
• Interest and fees - Rate (fixed or variable), how it accrues, compounding, default interest, arrangement fees, and calculation conventions.
• Repayment schedule - Instalments, bullet repayment, or on demand. Spell out payment dates, method, and prepayment rights (with or without fees).
• Purpose - If the loan is solely for business purposes, say so. This helps distance the arrangement from consumer credit regimes.
• Term - Start, maturity and conditions for extension.
• Security - Whether the debt is secured, and the form of security (for example, a debenture or specific charge). If you’re taking a broad fixed and floating charge, you’ll likely need a General Security Agreement and post‑completion filings.
• Guarantees - A personal or corporate guarantee to backstop the borrower’s obligations. Guarantees are often executed as deeds.
• Financial covenants - Simple triggers (like maintaining insurance or not exceeding a borrowing limit) that surface risks early.
• Information undertakings - Borrower to provide management accounts, cash‑flow updates or notice of material adverse changes.
• Negative covenants - Restrictions on selling key assets, taking on other security (a “negative pledge”), or paying dividends until the loan is repaid.
• Events of default - Non‑payment, insolvency, breach of covenants, misrepresentation, cross‑default, and material adverse change. State your remedies: accelerate the loan, enforce security, or appoint an insolvency practitioner.
• Set‑off and withholding - Clarify whether the borrower can set off claims and how tax withholding is handled.
• Costs and indemnities - Borrower pays reasonable enforcement and registration costs.
• Assignment and transfers - Your right to assign the debt or novate the agreement to a third party. If you intend to substitute parties (rather than just assign rights), a Deed of Novation is typically used.
• Governing law and jurisdiction - Usually England and Wales for UK SMEs.
• Execution - Ensure correct execution blocks for companies and individuals, and witnessing where needed (especially for deeds and guarantees).

Not sure whether you need a lightweight note or a full agreement? Our guide to the difference between a Promissory Note and a Loan Agreement can help you decide what fits your situation.

Secured Or Unsecured? Guarantees, Charges And Priority

Security and guarantees reduce your risk and can transform your recovery prospects if a borrower defaults. Here’s what small businesses typically consider:

Unsecured Debt

Fast to put in place but riskier if the borrower’s finances deteriorate. You are a general creditor if the borrower becomes insolvent and may recover little after secured creditors are paid.

Secured Debt

Security gives you rights over assets. Common options include:

• Specific security - A charge over a particular asset (for example, a vehicle or equipment). Useful when the loan funds a specific purchase.
• All‑assets security - A debenture or General Security Agreement creating fixed charges over key assets and a floating charge over the rest. For company borrowers, you’ll need to register the charge at Companies House within 21 days to protect priority.
• Retention of title - If you supply goods on credit, your terms can reserve ownership until payment. This needs careful drafting to be effective and may still require registration if it creates security.

Personal And Corporate Guarantees

If you’re lending to a company with limited assets, a personal guarantee from a director or a cross‑company guarantee within a group provides an additional route to recovery. Treat guarantees as formal obligations - they’re often executed as deeds and may require independent legal advice for the guarantor to minimise enforceability challenges.

Security and guarantees bring extra steps (filings, searches, insurance checks), but they can meaningfully change your leverage and outcomes if things head south.

How To Put A Debt Contract In Place (Step‑By‑Step)

1) Scope The Deal And Choose The Right Document

Decide the amount, purpose, term and risk profile. For a simple, short‑term advance between friendly parties, a note may suffice. For larger or ongoing credit, use a full Loan Agreement and consider security or guarantees.

2) Run Basic Checks

• Confirm the borrower’s correct legal name and company number.
• Check who has authority to sign (for example, directors).
• If taking security, search existing charges to assess priority and whether consents are needed.

3) Draft Commercial Terms And Protections

Set out principal, interest, repayment schedule, covenants, default triggers, and any security or guarantees. Keep it clear and practical - ambiguity creates disputes. Avoid DIY templates for significant sums - tailored drafting protects you when it matters most.

4) Consider Regulation And Privacy

Confirm whether the arrangement is purely business‑to‑business and unregulated, or whether CCA/FSMA obligations could bite (especially with sole traders or small partnerships). If you’ll handle personal data (for example, guarantor info), make sure your Privacy Policy and data handling meet UK GDPR and Data Protection Act standards.

5) Execute Correctly

• Use the right signature blocks for companies and individuals.
• Where a deed is used (common for guarantees or security), ensure proper witnessing and delivery.
• If taking company security, diarise the 21‑day Companies House registration window immediately after completion.

6) Post‑Completion Admin

• Issue any drawdown notices or funds transfers as required.
• File charges and keep copies of all filings and acknowledgements.
• Set reminders for repayments, interest adjustments, covenant reporting dates and maturity.

7) Managing Issues, Variations And Restructures

If circumstances change, you have options:

• Variation - Amend interest or repayment schedules by written variation or deed (depending on the contract).
• Extension - Agree a new maturity date and any fee for the extension.
• Debt‑for‑equity - In growth scenarios, you could convert part of the debt into shares via a negotiated debt‑for‑equity swap.
• Assignment/Novation - Transfer the debt to a third party (for example, within your group or to an investor). An outright substitution of the creditor generally uses a Deed of Novation.

8) Handling Late Payment And Enforcement

Start with reminders and a firm but professional credit control process. If that fails, send a letter before action setting out the debt, interest and your intent to issue proceedings. From there, options include:

• County Court claim for a money judgment.
• Statutory demand as a precursor to insolvency proceedings (use with care and advice).
• Enforcement - Warrant of control, third‑party debt orders, or charging orders over property.
• Security enforcement - Appointing receivers or selling charged assets in line with the security document.

In many cases, a commercial settlement is preferable. A short, tailored Deed documenting new terms, part‑payments or waivers provides certainty and closes the dispute professionally.

9) Selling Or Outsourcing The Debt

If you’d rather not chase a stubborn debtor, you can explore whether to sell a debt or appoint a third‑party collector under a servicing arrangement. Your original contract should permit assignment, and you’ll need a compliant transfer pack and notices to the borrower.

Common Pitfalls To Avoid

• Vague repayment terms - “Pay me back when you can” is unenforceable in practice. Put dates, amounts and methods in black and white.
• No default interest or costs - Without these, you carry extra time‑value and recovery costs. Include fair provisions that comply with the Late Payment regime where relevant.
• Unsecured high‑value loans - For meaningful sums, consider security and/or a guarantee to protect recovery prospects.
• Missing registration - Security that isn’t registered on time can lose priority or be void against an insolvency practitioner.
• Wrong party names - Misnaming a company or signing with the trading name instead of the legal entity causes enforcement headaches.
• Regulatory blind spots - Lending to a sole trader or small partnership? Check whether CCA rules could apply before you commit.
• Privacy gaps - If you handle guarantor or director personal data, ensure your privacy notices and practices are UK GDPR‑compliant.

Key Takeaways

• A debt contract is the written backbone of any business lending or credit arrangement. Choose the right format for the risk - from a simple Promissory Note to a full Loan Agreement with security and covenants.
• Check the regulatory angle early. Many B2B loans are unregulated, but CCA/FSMA can apply to certain borrowers (like sole traders) and activities. Build in Late Payment interest for commercial invoices as a safety net.
• Include the essentials: clear repayment terms, interest, security or guarantees, covenants, events of default, assignment rights, and robust enforcement and cost provisions.
• If taking security over a company, use a suitable instrument (for example, a General Security Agreement) and register charges at Companies House within 21 days to preserve priority.
• Execute correctly - especially for deeds and guarantees - and keep good post‑completion admin (filings, reminders, covenant checks).
• When things change, you can vary, extend, transfer the debt by Deed of Novation, or even consider a debt‑for‑equity swap. For stubborn payers, follow a structured credit control process and escalate with a letter before action if needed.

If you’d like help drafting a debt contract, taking security, or recovering a business debt, you can reach our friendly team on 08081347754 or team@sprintlaw.co.uk for a free, no‑obligations chat.