Lending money to a family member or close friend is one of the most financially dangerous things you can do — not because the people involved are dishonest, but because informality breeds catastrophe. When a private loan goes wrong in the UK, the consequences ripple far beyond the lost capital: broken relationships, unexpected tax bills, entanglement in someone else’s divorce proceedings, and years of litigation under the Limitation Act 1980. This guide sets out exactly what you need to know before you transfer a single penny.
The Gift Presumption: Why English Law Works Against You
English and Welsh courts have long recognised a legal principle that catches private lenders off guard: transfers of money between family members are presumed to be gifts unless there is clear evidence to the contrary. This is known as the presumption of advancement, and although its scope has narrowed somewhat in recent decades, it remains devastatingly effective at defeating informal loan claims — particularly from parents to children.
If your borrower later faces bankruptcy, divorce, or simply refuses to repay, you will need to prove on the balance of probabilities that the money was a loan, not a gift. Without a written agreement, a court will look at the surrounding circumstances: Was there a repayment schedule? Were any payments actually made? Did you chase arrears? If the answer to all three is “no,” prepare to lose your money entirely. The burden of proof sits squarely on the lender, and verbal promises carry almost no weight when tested under cross-examination.
Why You Must Use a Deed, Not a Simple Contract
A private loan agreement can be executed as either a simple contract or a deed. The difference matters enormously. Under the Limitation Act 1980, claims on a simple contract must be brought within six years of the breach. Claims on obligations contained in a deed benefit from a twelve-year limitation period. Given that private loans between loved ones frequently involve long repayment horizons, informal extensions, and periods of silence, the extra six years of enforceability can be the difference between recovering your capital and being time-barred.
A deed must be signed, witnessed, and delivered. It does not require consideration — meaning it can stand even if the borrower gives nothing in return for the loan terms, which is useful if you are documenting an interest-free arrangement. Have it witnessed by someone independent, not another family member involved in the transaction.
What Your Loan Agreement Must Contain
At minimum, the document should address the following:
- Principal amount and purpose. State the exact sum and what it is for. This becomes critical if the borrower later claims the funds were a gift towards a house deposit or wedding.
- Interest rate. Even if you charge zero interest, state this explicitly. HMRC can impute a taxable benefit in certain circumstances — more on this below.
- Repayment schedule. Fixed monthly instalments, lump sum on a specified date, or repayment on demand — each has different legal and practical implications.
- Security. If the loan is being used towards a property purchase, consider taking a second charge on the property via a legal charge registered at the Land Registry. Without security, you are an unsecured creditor — last in the queue in any insolvency.
- Default provisions. What happens if payments are missed? Specify a cure period, an acceleration clause, and the right to charge statutory interest under the Late Payment of Commercial Debts (Interest) Act 1998 if applicable.
- Events of sale or transfer. If the borrower sells the asset the loan helped acquire, the outstanding balance should become immediately repayable.
Tax Traps: Income Tax, IHT, and CGT
Interest income. If you charge interest, every penny is taxable as savings income. You must declare it on your Self Assessment return. The personal savings allowance (£1,000 for basic-rate taxpayers, £500 for higher-rate) may absorb small amounts, but do not assume HMRC will not notice — they increasingly cross-reference data.
Inheritance Tax. This is the trap that genuinely blindsides families. If you lend a large sum interest-free or at below-market rates, HMRC may treat the foregone interest as a transfer of value for IHT purposes. More critically, if you die while the loan is outstanding, the debt forms part of your estate. If the borrower cannot repay it, you have effectively made a gift that may attract IHT at 40% above the nil-rate band. Conversely, if you forgive the loan during your lifetime, the forgiveness is a potentially exempt transfer — you must survive seven years for it to fall out of your estate entirely.
Capital Gains Tax. If the loan is connected to a property the borrower uses as a buy-to-let or second home, there is no principal private residence relief on that borrower’s eventual sale gain. This does not directly affect the lender, but it affects the borrower’s ability to repay you. Factor it into your risk assessment.
Family Law: How Divorce Can Destroy Your Loan
This is where private lending becomes truly perilous. Under the Matrimonial Causes Act 1973, English family courts have exceptionally broad discretion to divide assets on divorce. If your borrower’s spouse petitions for divorce, the court will scrutinise every liability. An informal, undocumented loan from the borrower’s parents is routinely reclassified as a gift — or treated as a “soft” loan that the court simply ignores when dividing the matrimonial pot.
Even a well-documented loan can be subordinated to the needs of the divorcing parties, particularly where children are involved. However, a properly executed deed with evidence of regular repayments, commercial terms, and a registered legal charge gives you the strongest possible basis to argue that the debt is a genuine third-party liability that must be deducted before the asset pool is divided. Without this evidence, expect to be treated as a disappointed benefactor, not a creditor.
Insolvency: Your Position in the Queue
If the borrower becomes insolvent, you face another harsh reality. As a connected party — family or close friend — any repayments made to you in the period before insolvency may be clawed back as preferences under the Insolvency Act 1986. The look-back period for connected persons is two years, compared with six months for arm’s-length creditors. This means that even if the borrower tried to do the right thing and repay you before other creditors, a trustee in bankruptcy can reverse those payments and redistribute the funds.
Taking security (a legal charge on property, for example) significantly improves your position, but it must be taken at the time the loan is made. Security granted later, when the borrower is already in financial difficulty, is vulnerable to challenge as a transaction at an undervalue or a preference.
The Consumer Credit Act: Are You a Regulated Lender?
If you charge interest and lend to an individual, you need to consider whether the Consumer Credit Act 1974 applies. There is no blanket exemption for family lending. If you are lending in the course of a business — even informally, even occasionally — you may need FCA authorisation. A single loan to a family member made genuinely outside any business context is unlikely to trigger regulation, but repeated lending to multiple people, or lending at commercial rates with formal enforcement, can cross the line. The consequences of unlicensed lending are severe: the agreement may be unenforceable, and you commit a criminal offence.
What to Do Before You Hand Over the Money
Apply the golden rule first: only lend what you can afford to lose permanently. If the loss of this sum would compromise your retirement, your emergency fund, or your own mortgage security, the answer is no — regardless of the relationship.
Then take these steps: instruct a solicitor to draft a loan agreement as a deed, with the borrower receiving independent legal advice so they cannot later claim undue influence. Register a legal charge if property is involved. Set up a standing order for repayments from day one — not because you distrust the borrower, but because a documented payment history is your strongest evidence in every adverse scenario, from divorce courts to HMRC inquiries. Keep every communication in writing. Review the arrangement annually. And accept this uncomfortable truth: if you are not willing to enforce the agreement in court, you are making a gift with extra paperwork. Structure your finances accordingly.
Disclaimer: The information provided in this article is for informational purposes only and should not be considered financial or legal advice. Property and lending laws in the United Kingdom vary and may change over time. We always recommend consulting with a qualified solicitor and mortgage broker before entering into a property purchase or financial arrangement with another party.
