Promissory Note (UK)

A Promissory Note in the United Kingdom is a legally binding written instrument.

Unlike a loan agreement, which typically sets out detailed covenants, representations, and mutual obligations between lender and borrower, a promissory note is a simpler, one-sided instrument. The maker makes a binding promise to pay; the payee does not undertake any reciprocal obligation within the note itself. This simplicity makes promissory notes a practical choice for straightforward lending arrangements between individuals, family members, friends, or small businesses where the full complexity of a formal loan agreement is unnecessary.

Promissory notes have a long history in English commercial law and remain widely used today. They are commonly employed in private lending between individuals, short-term business financing, director's loans to companies, deposits for property transactions, and settlement of existing debts. While promissory notes are negotiable instruments under the Bills of Exchange Act 1882 (meaning they can, in theory, be transferred by endorsement), in practice most private promissory notes include a restriction on transferability to prevent the note being passed to third parties without the maker's consent.

The United Kingdom Promissory Note (UK) important to distinguish a promissory note from an IOU. An IOU is merely an acknowledgment of a debt and does not contain an unconditional promise to pay. A promissory note, by contrast, contains an express promise and is therefore a stronger legal instrument. Under English law, an IOU can serve as evidence of a debt in court proceedings, but a properly drafted promissory note provides clearer and more enforceable terms.

The legal framework governing the Promissory Note (UK) in United Kingdom draws on several key statutes and regulatory bodies. Under the Financial Services and Markets Act 2000 (FSMA), the Financial Conduct Authority (FCA) and Prudential Regulation Authority (PRA) regulate financial services. The Consumer Credit Act 1974 governs consumer lending. HM Revenue and Customs (HMRC) applies stamp duty land tax under the Finance Act 2003. The Financial Ombudsman Service (FOS) resolves consumer financial disputes. The Bank of England sets monetary policy under the Bank of England Act 1998. Parties executing a Promissory Note (UK) in United Kingdom should confirm the document reflects current law, including any amendments enacted since the original drafting date. The Bills of Exchange Act 1882 sets the foundational requirements.

A Promissory Note is appropriate in a wide range of lending situations in England and Wales where a formal loan agreement would be disproportionately complex or expensive. The most common circumstances in which you should use a promissory note include the following.

Personal loans between family members or friends are the most frequent use case. When one individual lends money to another, a promissory note provides written evidence of the loan, the amount, the repayment terms, and any interest. Without a written instrument, disputes about the existence, amount, or terms of the loan can be extremely difficult to resolve. English courts require clear evidence of the terms of a contract, and a signed promissory note provides exactly that.

Director's loans to or from a company are another common situation. When a director lends money to their own company (or borrows from it), a promissory note documents the transaction for accounting, tax, and Companies House purposes. HMRC may scrutinise director's loans, and having a clear written record of the terms protects both the director and the company.

Deposits and earnest money for property transactions may be documented using a promissory note where the buyer needs to provide evidence of a commitment to pay. While the substantive property transaction will be governed by a separate contract, the promissory note can serve as an interim instrument.

Settlement of existing debts is another important use. Where a debtor owes a sum of money (for example, under an invoice or previous agreement) and the parties wish to formalise the repayment terms, a promissory note provides a clear, standalone instrument that sets out the payment schedule.

Short-term business financing between small businesses or sole traders is also a common application. Where a formal facility agreement would be disproportionate, a promissory note provides a simple and legally effective alternative.

The United Kingdom Promissory Note (UK) critical to understand the limitation period. Under the Limitation Act 1980, the payee must commence court proceedings to recover the debt within six years of the date the cause of action accrued. If the note is executed as a deed, the limitation period is twelve years. Failure to act within the limitation period renders the debt unenforceable through the courts, although the underlying obligation is not extinguished.

A well-drafted Promissory Note for use in England and Wales must contain several essential elements to be valid under the Bills of Exchange Act 1882 and enforceable in the English courts.

The unconditional promise to pay is the defining characteristic of a promissory note. Section 83 of the Bills of Exchange Act 1882 requires that the promise be unconditional. A note that makes payment conditional on the occurrence of a future event (for example, the completion of a project or the sale of an asset) is not a valid promissory note. The promise must be absolute and unqualified.

The sum certain must be clearly stated. The principal amount must be a definite, ascertainable figure expressed in a recognised currency. In the United Kingdom, this is pounds sterling. The note should state the amount both in figures and, where possible, in words to avoid ambiguity.

The identification of the parties is essential. The note must name the maker (the person promising to pay) and the payee (the person to whom the payment is promised). Both parties should be identified by their full legal names and addresses to avoid any dispute about identity.

The repayment terms specify how and when the principal (and any interest) will be repaid. A promissory note may provide for repayment on demand, on a fixed future date (the maturity date), by instalments, or at a determinable future time. The Bills of Exchange Act 1882 requires that the time of payment be fixed or determinable.

The interest clause, if included, should specify the annual interest rate, the basis of calculation (for example, a 365-day year), and when interest accrues. While there is no general usury cap in England and Wales for unregulated lending, the interest rate must not create an unfair relationship under the Consumer Credit Act 1974 (if applicable) and must not be so extortionate as to be unenforceable at common law.

The default clause sets out the circumstances in which the entire outstanding balance becomes immediately due and payable. Typical events of default include failure to make a payment when due, insolvency of the maker, and material breach of the note's terms.

The late payment provision, if included, must represent a genuine pre-estimate of loss to be enforceable. Following the Supreme Court's decision in Cavendish Square Holding BV v Makdessi [2015] UKSC 67, a clause will not be struck down as a penalty if it protects a legitimate commercial interest and is not extravagant or unconscionable.

The governing law and jurisdiction clause should specify that the note is governed by the laws of England and Wales, with the courts of England and Wales having exclusive jurisdiction. This is particularly important where one or both parties reside outside England and Wales.

Finally, the signature of the maker is the minimum requirement for validity. The Bills of Exchange Act 1882 requires the note to be signed by the maker. While witnessing is not legally required for a simple contract, it is strongly recommended as it provides additional evidence of authenticity and voluntary execution. The forms-legal.com Promissory Note (UK) template covers the mandatory elements under Bills of Exchange Act 1882.

The Bills of Exchange Act 1882 provides the complete statutory framework for promissory notes in England and Wales, and three provisions are directly relevant to every note used in United Kingdom commercial or personal lending.

Section 83(1) defines a promissory note as an unconditional promise in writing, signed by the maker, to pay on demand or at a fixed or determinable future time a sum certain in money to or to the order of a specified person. Four elements must all be present for the instrument to qualify: (a) the promise must be unconditional — any qualification that makes payment contingent on a future event disqualifies the instrument as a promissory note; (b) the sum must be certain — a note for a fluctuating amount is invalid; (c) the payee must be specified; and (d) the maker must sign. Section 88 applies most of the provisions governing bills of exchange to promissory notes, subject to modifications. Section 89 provides that a promissory note payable on demand is equivalent to a bill of exchange payable on demand.

The Limitation Act 1980 sets the time limits within which the payee must sue. Under section 5, actions on a simple contract must be brought within six years of the cause of action accruing — for a promissory note payable on demand, time begins running from the date of the note; for a note payable on a fixed date, from the date of default. Under section 8, if the note is executed as a deed, the limitation period extends to twelve years. Critically, sections 29 and 30 restart the limitation period if the maker makes a part payment or provides a written acknowledgment of the debt. Once limitation has expired, the payee cannot enforce the debt through the courts, even though the underlying obligation remains.

Where consumer credit is involved, the Consumer Credit Act 1974 overlays additional requirements. A lender who provides credit to an individual (not a body corporate) under a regulated agreement must hold Financial Conduct Authority authorisation and comply with the Act's information, cooling-off, and unfair relationship provisions under section 140A. Personal promissory notes between individuals — such as family loans — may fall within the regulated framework and should be assessed against the Act's exemptions before being relied upon.

Promissory notes drafted or executed incorrectly under English law may be unenforceable, may constitute unregulated credit agreements, or may fail to satisfy the formal requirements of the Bills of Exchange Act 1882. The following nine mistakes are the most consequential.

1. Including a conditional promise. Section 83(1) of the Bills of Exchange Act 1882 requires the promise to pay to be unconditional. A note that states payment is due only if the maker sells a particular asset, completes a project, or some other future event occurs is not a valid promissory note. The instrument would instead be a conditional promise, governed only by general contract law — a weaker and less certain instrument.

2. Failing to specify a sum certain. A promissory note must state a definite principal amount in a recognised currency. Notes that provide for a sum determined by future calculation — such as a percentage of net profits — do not satisfy the statutory requirement of a sum certain and are therefore not promissory notes under the Act.

3. Confusing a promissory note with an IOU. An IOU is a mere acknowledgment of a debt: it evidences that a sum is owed but does not contain an unconditional promise to pay. In contested litigation before English courts, a promissory note is significantly stronger evidence of the existence and terms of the debt than an IOU, which may leave the payee unable to prove repayment terms without additional oral evidence.

4. Overlooking the Limitation Act 1980. A payee who does not commence proceedings within six years of the maturity date (or date of demand for an on-demand note) loses the right to enforce the debt through the courts. Many private lenders are unaware of this deadline until after it has passed. Executing the note as a deed extends the period to twelve years, providing an important safeguard for longer-term arrangements.

5. Failing to comply with Consumer Credit Act 1974 requirements. Where a promissory note forms part of a loan to an individual for personal purposes, the Consumer Credit Act 1974 may apply. The lender must hold Financial Conduct Authority authorisation and comply with information and documentation requirements. Failure to comply can render the agreement unenforceable and expose the lender to regulatory penalties.

6. Charging an interest rate that creates an unfair relationship. Under section 140A of the Consumer Credit Act 1974, a court may re-open a credit agreement where the relationship between lender and borrower is unfair. An extortionate interest rate on a personal loan can result in the court reducing the sum payable, even where the borrower has signed a promissory note agreeing to that rate.

7. Not including a default clause. Without an acceleration or default clause, a maker who misses an instalment cannot be required to pay the entire outstanding balance immediately. The payee must instead sue for each missed instalment separately — a costly and protracted process. A well-drafted default clause provides that all sums become immediately due and payable on any failure to pay an instalment on time.

8. Omitting the governing law clause. Where the maker and payee are in different countries, or where the debt might be enforced in a foreign jurisdiction, the absence of a governing law clause creates uncertainty. The note should specify that it is governed by the laws of England and Wales and that the courts of England and Wales have exclusive jurisdiction.

9. Failing to keep a signed copy. Once the maker repays the note and the payee returns it marked 'paid' (or the payee tears it up without the maker's knowledge), the maker loses documentary evidence that the debt has been discharged. Both parties should retain copies, and on full repayment the original should be returned to the maker marked 'satisfied' with the date and the payee's signature.