Lending Money to Friends: 7 UK Rules for 2026

By The Chipkie Team, Personal Finance Editorial Team  ·  Last updated 25 September 2026

Lending money to friends is one of those things almost everyone does at least once — a few hundred quid to cover a deposit on a flat, a grand to get a van back on the road, or a chunk of savings to help a mate through a gap between jobs. It feels straightforward at the time. It rarely stays that way. With household budgets still stretched in 2026 and mainstream credit harder to access for people with thin credit files, informal loans between friends are doing more heavy lifting than ever.

The problem is that goodwill is not a legal structure. When memories diverge about whether it was a loan or a gift, or when a mortgage lender starts asking where a deposit came from, the absence of paperwork stops being a minor oversight and becomes an expensive one.

Key Takeaways

• A loan between friends is a legally binding contract in the UK even if nothing is written down — but proving its terms without documentation is extremely difficult.
• Under the Limitation Act 1980, a simple written contract can be enforced for six years, while an obligation contained in a deed carries a twelve-year limitation period.
• If the money is going towards a property purchase, the lender must be told whether it is a gift or a loan; signing a gifted deposit letter for money that is actually repayable is mortgage fraud.
• HMRC does not tax the act of lending, but any interest you receive is taxable savings income, and money you forgive becomes a gift with inheritance tax consequences.
• The annual gift exemption is £3,000 per tax year, with one unused prior year available to carry forward, giving up to £6,000.

What are the 7 rules for lending money between friends in the UK?

Seven rules cover almost every situation: write it down, decide gift or loan, agree a repayment schedule, be explicit about interest, use a deed for larger sums, tell any mortgage lender the truth about the source of funds, and agree in advance what happens if repayment stalls. Follow these and disputes become rare.

1. Put it in writing. Names, amount, date advanced, repayment dates, and signatures. A single page beats a WhatsApp thread.
2. Decide gift or loan — and say which. UK courts have repeatedly had to settle exactly this question because nobody said it out loud.
3. Set a repayment schedule. “When you can” is not a term. Fixed dates give you a clear point of default and start the limitation clock.
4. Be explicit about interest. Zero is fine, but write “no interest is payable” rather than leaving it blank.
5. Use a deed for meaningful sums. Signed, witnessed and expressed as a deed, it gives you twelve years to enforce instead of six.
6. Disclose the money to any mortgage lender. Non-negotiable, and covered in detail below.
7. Agree the fallback now. What happens if your friend loses their job, moves abroad, or simply stops replying?

Our experience across the agreements our users create is that rules 2 and 3 prevent the overwhelming majority of fallouts. Ambiguity, not bad faith, is what wrecks friendships.

Is an informal loan between mates legally enforceable?

Yes. An informal loan between mates is a binding contract under English law provided there was an offer, acceptance, consideration and an intention to create legal relations. No signature is required for validity. The difficulty is evidential: if your friend claims it was a gift, you must prove otherwise on the balance of probabilities.

That last point is where people come unstuck. Bank transfers show that money moved; they say nothing about why. Courts look at surrounding evidence — messages, the size of the sum relative to your means, whether any repayments were ever made, and how the parties behaved afterwards.

One trap worth knowing: if your friend makes a part payment or acknowledges the debt in writing, the limitation period generally restarts from that date. A single acknowledging text can rescue a claim you thought was time-barred. If you are drafting from scratch, our guide on how to write a loan agreement between family or friends in the UK covers the clauses that matter most.

What if the money is going towards a house deposit?

This is the highest-risk scenario and the one most articles gloss over. UK mortgage lenders assess the source of deposit funds, not just affordability. Money from a friend must be declared. If it is genuinely a gift, the lender will require a gifted deposit letter; if it is repayable, most lenders will refuse the application outright.

A gifted deposit letter typically confirms that the money is a non-repayable gift, that the giver retains no legal or beneficial interest in the property, and that the giver is not a party to the mortgage. It becomes false the moment any repayment expectation exists — even an informal understanding between mates. Lenders treat an undisclosed borrowed deposit as mortgage fraud, which is a criminal offence under the Fraud Act 2006 and can result in the mortgage being called in, the property repossessed, and a CIFAS marker that follows the borrower for years.

• Genuine gift: disclosable, acceptable to most lenders, requires a signed gifted deposit letter and proof of the giver’s funds.
• Loan from a friend: must be disclosed; expect refusal or a significantly reduced borrowing limit, because the repayment is a committed outgoing.
• Loan dressed up as a gift: fraud. Do not sign the letter. There is no soft version of this.

If you want an interest in the property rather than simply to be repaid, that is a different structure entirely — a declaration of trust recording beneficial shares, with the lender’s knowledge and consent. Be aware too that if you already own property anywhere in the world and are named on the purchase, the higher rates of Stamp Duty Land Tax apply to the whole price.

What are the tax and interest rules when money moves between friends?

There is no UK gift tax and no tax on the act of lending. However, interest you receive is taxable savings income and must be declared to HMRC. If you later write the debt off, the outstanding balance becomes a gift, bringing the annual exemptions and the seven-year rule into play.

• Interest: taxable as savings income. Your Personal Savings Allowance may cover it — check your position with HMRC.
• Annual gift exemption: £3,000 per tax year, plus one unused prior year carried forward, so up to £6,000.
• Small gifts: £250 per recipient per tax year to any number of people, provided no other exemption is used for that person.
• Nil-rate band: According to HMRC, the inheritance tax nil-rate band stands at £325,000 and remains frozen.
• Seven-year rule: larger gifts are potentially exempt transfers and fall out of your estate if you survive seven years. Taper relief between three and seven years reduces the tax due, not the value of the gift — a distinction people get wrong constantly.

One further point: if you lend repeatedly, at interest, to multiple people, you may be carrying on a regulated activity requiring authorisation from the Financial Conduct Authority. Occasional personal loans are not caught, but a pattern of commercial lending is. For rate-setting, see our note on how much interest to charge when lending to friends or family.

How do you get your money back from a friend without losing the friendship?

Escalate slowly and in writing. Start with a friendly reminder referencing the agreed date, offer a revised schedule if circumstances have genuinely changed, then send a formal letter before action. Most disputes settle at that stage. Court should be the last resort, not the opening move.

1. Send a warm, specific message: the amount, the agreed date, a proposed new one.
2. Offer a written repayment plan — smaller instalments recovered in full beat a lump sum never paid.
3. Get any revised terms acknowledged in writing. This also restarts the limitation clock.
4. Issue a letter before action setting out the debt, the evidence and a deadline, usually fourteen days.
5. Consider mediation, then the small claims track. Free, impartial guidance is available from MoneyHelper.

For wording you can lift straight into a message, our piece on how to ask for money back is worth ten minutes of your time.

Can a verbal loan agreement be enforced in court?

Yes, verbal loans are enforceable, but you carry the burden of proving the terms. Bank statements, messages discussing repayment, and any part payments all help. Without corroboration, a judge may find the money was a gift. Written agreements remove this risk almost entirely and cost nothing to prepare.

Does lending to a friend affect their mortgage application?

Yes. Any repayable loan is a committed monthly outgoing and reduces the amount a lender will advance. It must be declared on the application and will usually show in bank statements during underwriting. Concealing it risks the offer being withdrawn and a fraud marker being recorded.

Should I charge interest when lending money to a friend?

You are free to charge interest or not. Interest received is taxable savings income and should be declared. Many people charge a nominal rate simply to reinforce that the arrangement is a loan rather than a gift, which strengthens the evidential position if a dispute later arises.

What is the difference between a contract and a deed here?

A standard written contract is enforceable for six years from the date of default. A document properly executed as a deed — signed, witnessed and stated to be a deed — carries a twelve-year limitation period under the Limitation Act 1980. For substantial or long-dated loans, a deed is the safer choice.

Where should you go from here?

Helping a friend is a good thing to do. Doing it without paperwork is not. A clear agreement protects both sides: it tells your friend exactly what is expected, it tells a mortgage lender the truth, and it tells a court what you actually agreed if the worst happens. It also removes the low-level awkwardness that quietly corrodes friendships when nobody wants to raise the subject.

If you are about to hand over money — or have already done so and want it documented properly — you can create a clear, legally sound loan agreement with Chipkie in minutes and keep both the money and the friendship intact.

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.