LendRight UK / How to write a family loan agreement
Guide · 8 min read

How to write a family loan agreement in England & Wales

The kindest thing you can do for a relationship you’re lending money into is to make the terms boring, written, and signed. Here’s how — step by step.

LendRight Editorial Team
Reviewed against the law of England & Wales Updated October 2026
Plain-English summary

A loan agreement for family or friends in England & Wales needs both parties, the amount, the repayment schedule, the interest rate stated per annum (0% is fine), default terms, and signatures — e-signatures are valid, and a typical loan doesn't need a deed. This guide walks through each clause, plus the HMRC and inheritance-tax angles.

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Step 1 — Say out loud that it’s a loan

Before any drafting: both of you should say, in the same conversation, that this is a loan to be repaid — not a gift, not “sort it out later”. In family money disputes the court’s first question is intention, and between parents and children the presumption of advancement can treat unexplained transfers as gifts. A written agreement is the cleanest rebuttal that exists.

Step 2 — Write the eight essential terms

  • Parties — full legal names and current addresses.
  • Principal — the exact amount, and how and when it’s advanced.
  • Repayment plan — instalment amounts, dates, and the maturity date. “When you can” is not a plan.
  • Interest — a number (even if it’s 0%), stated as an annual rate.
  • Early repayment — usually: allowed anytime, no penalty.
  • Missed payments — a short grace period, or the right to call in the whole balance.
  • Death and incapacity — the debt survives as a claim against the estate; an attorney or deputy can act for a borrower who loses capacity.
  • Governing law — the law of England and Wales.

Step 3 — Get the money rules right

Interest: there’s no statutory cap on a private loan in England and Wales, but two forces keep rates sensible — courts can reopen unfair relationships (Consumer Credit Act 1974, ss.140A–C), and every pound of interest you receive is taxable savings income. The Personal Savings Allowance (£1,000 basic rate / £500 higher rate) covers modest amounts; beyond it, you need to tell HMRC (through Self Assessment if you file a return). An interest-free loan triggers no income-tax charge for either side.

Inheritance tax: a loan stays in your estate as an asset until repaid. Forgive it and you’ve made a gift — a potentially exempt transfer that only leaves your estate if you survive seven years. And if the money is a house-deposit, tell the mortgage lender the truth: most require deposit money from family to be a declared gift, and signing a gift declaration for what is really a loan breaches their conditions and can be mortgage fraud.

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Step 4 — Sign it properly

A loan agreement is a simple contract, so electronic signatures are fully valid in England and Wales (Electronic Communications Act 2000; Law Commission, 2019). What matters is evidence: who signed, when, and that the document hasn’t changed since. LendRight seals every agreement with signing timestamps, a one-time code emailed to each signer, and a SHA-256 fingerprint anyone can verify later — but even a printed copy signed by both parties beats nothing by a mile.

Unsure about the witness box or whether a notary is needed? Read when a family-loan agreement needs a witness, including the difference between a simple contract and a deed in England and Wales.

Step 5 — Know the enforcement path (so you never need it)

If repayment stalls: follow your own grace-period clause, then send a letter before claim. Claims up to £10,000 go through the small claims track of the County Court — Money Claim Online is built for people without solicitors, fees scale with the claim, most fixed-sum claims under £10,000 go to free mediation first, and the signed agreement is Exhibit A. You have six years from the breach (Limitation Act 1980, s.5) — or, if the loan has no fixed repayment date, from your written demand (s.6). The quiet magic of a written agreement is that this paragraph almost never gets used: people repay plans; they renegotiate vibes.

How to loan money to family legally in the UK

Lending to family in England and Wales is legal without conditions and without permission. You do not need a solicitor, a witness, a notary, or authorisation from the Financial Conduct Authority — the FCA regulates lending by way of business, and a one-off loan to a relative is not that. What “legally” actually means here is enforceably: making the loan in a way a court could later recognise if it had to.

Four things do that work. Write it down, with the parties, the sum and the repayment terms. Have both people sign — the borrower’s signature alone proves your version; two signatures prove the agreement. Move the money traceably, by bank transfer with a reference, so the transaction is evidenced independently of the paperwork. And keep the terms lawful: interest stated as an annual rate, and no clause purporting to remove the borrower’s statutory rights.

Two legal points are worth knowing before you lend. You have six years from the cause of action to bring a claim, under section 5 of the Limitation Act 1980 — and for a loan with no repayment date the six years don’t start until you make a written demand (section 6), so fixing dates gives structure, but also starts the clock at each missed payment. And where a parent gives money to a child, a court may start from the presumption that it was a gift; a signed agreement is precisely what rebuts it.

Common questions

Does a family loan agreement need to be witnessed in England & Wales?

No. A family loan agreement is a simple contract, so it needs no witness, solicitor or notary, and electronic signatures are valid. A witness is only needed if you choose to make the agreement a deed, and then the witness must be physically present when you sign. Most family loans don’t need a deed.

What should a family loan agreement include?

At minimum: both people’s full names and addresses, the amount and how it’s paid over, the repayment schedule and final date, the interest rate as an annual figure (0% is fine), what happens if a payment is missed, what happens on death or incapacity, and that the law of England and Wales applies. Then you both sign it.

Is a family loan agreement legally binding?

Yes, if it records a genuine loan. Money lent in return for a promise to repay is consideration on both sides, and a clear written agreement shows you both meant to be legally bound. That matters most between parents and children, where the law otherwise presumes the money was a gift.

Do I need a solicitor to write a family loan agreement?

Not for a straightforward loan between two individuals. You do need one if you want security over property, such as a charge on a house, or if the loan is tied into a divorce, a business or estate planning. For anything large or complicated, an hour of advice is money well spent.

The mistakes that make judges sigh

No date. No repayment schedule. Interest “to be agreed”. A loan dressed as a gift for the mortgage application and as a loan in the family WhatsApp. Lending money you can’t afford to lose. And the classic: waiting six years and one month to do anything about it.

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This page is general information for England and Wales, not legal or tax advice. For your specific situation, speak with a solicitor or accountant.

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Related: Loan agreement between family members in the UK — every clause, annotated, with a worked £30,000 example.