By The Chipkie Team, Personal Finance Editorial Team · Last updated 3 October 2026
Lending money to a relative is one of the most common financial transactions in Britain and one of the least documented. A family loan tracker — a simple, shared record of what was lent, what has been repaid and what remains outstanding — is the difference between a loan that quietly completes and one that curdles into a decade of resentment at Christmas lunch. Most families start with good intentions and a bank transfer. Three years later, nobody agrees on whether £8,000 was a loan, a gift, or “help with the deposit”.
This guide covers how to track family lending properly in the UK, the tax and lender rules that catch people out, and the specific points where informal arrangements collapse.
Key Takeaways
- A written agreement plus an ongoing repayment record is the only reliable evidence of what was lent; verbal family loans routinely fail in court because neither side can prove the terms.
- If the money is intended for a property deposit, UK lenders will generally refuse a borrowed deposit that has not been disclosed — and an inaccurate gifted deposit letter is fraud.
- A loan is not a gift, so it stays in the lender’s estate as a debt owed to them; the seven-year rule and the £3,000 annual gift exemption apply to gifts, not loans.
- Obligations set out in a deed carry a 12-year limitation period, compared with six years for an ordinary written contract.
- Track payments against a schedule from day one — reconstructing years of bank statements after a falling-out is slow, expensive and often inconclusive.
What is a family loan tracker and why does it matter?
A family loan tracker is a running record of a private loan between relatives: the principal advanced, the agreed repayment schedule, each payment received, interest (if any), and the outstanding balance at any date. It sits alongside the loan agreement itself. The agreement states what was promised; the tracker proves what actually happened.
Our experience with the agreements users create shows the same pattern repeatedly: the money moves quickly, the documentation never catches up, and the dispute surfaces years later — usually when someone divorces, dies, or applies for a mortgage.
A workable tracker records:
- Date and amount of the original advance, with the bank reference used
- Repayment schedule — amounts, frequency, and the final due date
- Every payment received, dated, with the running balance after each
- Interest terms, if any, and how interest is calculated
- Any variations — payment holidays, deferrals, partial write-offs — confirmed in writing by both parties
- What happens on death of either party
How do you prove a family loan was a loan and not a gift?
You prove it with contemporaneous documents: a signed loan agreement, a bank transfer referenced as a loan, and a repayment record showing money flowing back. Without these, HMRC, a lender, or a court may treat the money as a gift — which has very different tax and ownership consequences for everyone involved.
The distinction is not academic. If the advance is a genuine loan, it remains an asset of the lender’s estate — a debt owed to them, and potentially chargeable to inheritance tax on their death. If it is a gift, it becomes a potentially exempt transfer, falling out of the estate only if the giver survives seven years. Taper relief between years three and seven reduces the tax due, not the value of the gift itself — a distinction that catches out even experienced executors.
Gift exemptions that may apply instead, if you decide the money really is a gift:
- The annual exemption of £3,000 per tax year, with one unused prior year available to carry forward (so up to £6,000)
- Small gifts of £250 per recipient per tax year, to any number of people, provided no other exemption has been used for that person
- The inheritance tax nil-rate band of £325,000, currently frozen, plus an additional residence nil-rate band where a home passes to direct descendants
Check the detail with HMRC’s personal tax guidance before assuming any exemption applies. And note: a “loan” that is never repaid and never chased may be recharacterised as a gift from the outset. The tracker is what demonstrates the loan was real and live.
Does a family loan need to be a deed?
Not necessarily, but it is often worth it. A standard written contract carries a six-year limitation period for bringing a claim. Obligations contained in a deed carry twelve years. For long-dated family loans — a parent lending to a child over fifteen years, for example — a simple contract may become unenforceable long before repayment finishes.
What happens if the loan is going towards a house deposit?
This is where informal family lending goes badly wrong. UK mortgage lenders assess the source of deposit funds, not just affordability. A borrowed deposit that has not been disclosed will usually be refused outright if discovered, and lenders treat undisclosed borrowed deposits as mortgage fraud.
Lenders generally require a gifted deposit letter confirming that the money is a genuine gift and that the giver retains no interest in the property and expects no repayment. That letter is false if:
- There is any expectation of repayment, however informal
- The giver expects a share of the property or of the sale proceeds
- There is a side agreement, a declaration of trust, or a verbal understanding that contradicts it
- The “gift” is recorded anywhere as a loan
Signing a false gifted deposit letter is fraud. It can void the mortgage offer, trigger immediate repayment demands, and expose both parties to criminal liability. If the money is genuinely a loan, say so. Some lenders will accept a disclosed family loan if repayments are factored into affordability; others will decline. Either outcome is survivable. A false declaration is not.
Where a parent wants both repayment and security, options include a second charge (with the first lender’s consent) or a formal secured family loan arrangement. If the parent is instead taking an equity stake, that belongs in a Declaration of Trust — not in a gift letter. Without a Declaration of Trust, courts and HMRC default to equal beneficial shares regardless of who actually paid what, and either co-owner can apply under the Trusts of Land and Appointment of Trustees Act 1996 to force a sale.
How should you set up and maintain the record?
Set it up before the money moves, not after. The sequence below reflects what consistently holds up when relationships break down.
- Agree the terms in writing first — amount, interest, schedule, what happens on default, death or divorce.
- Decide loan or gift, and be consistent everywhere. You cannot call it a gift to the lender and a loan to the family.
- Transfer by bank payment with a clear reference such as “Loan per agreement 01/10/2026”. Never use cash.
- Log every repayment on the day it arrives, with the running balance.
- Record variations in writing. A payment holiday agreed by text is better than one agreed in the kitchen.
- Review annually and both parties confirm the outstanding balance in writing. This acknowledgement can also restart the limitation clock.
- Tell the executor. Note the loan in the lender’s will or a letter of wishes so it is not lost on death.
If you want a steer on terms, our guidance on setting a fair interest rate on a family loan and on drafting a family loan agreement covers the mechanics. For free impartial help, MoneyHelper is backed by the Money and Pensions Service.
What else do people ask about family loans?
Can I charge interest on a family loan?
Yes. There is no legal requirement to charge interest, but you may. Interest you receive is taxable savings income and must be declared to HMRC. Note that the UK has no equivalent of the American “applicable federal rate” — there is no minimum rate you are obliged to charge a relative.
What happens to the loan if the lender dies?
The outstanding balance becomes an asset of the lender’s estate and is owed to the estate, not automatically forgiven. It counts towards the estate’s value for inheritance tax. If you intend the debt to be written off on death, say so explicitly in the will — otherwise the executor must pursue it.
Is a verbal family loan enforceable in the UK?
It can be, but proving the terms is extremely difficult. Courts need evidence of what was agreed. Bank records show money moved; they do not show whether it was a loan, a gift or payment for something. Without written terms, the borrower’s account often prevails. See our guide on proving a verbal family loan in court.
Do I need to tell my mortgage lender about money from my parents?
Yes, always. Lenders ask about the source of deposit funds and require documentation. Concealing a family loan is fraud, not a technicality. Disclose it honestly — the lender may accept it, factor repayments into affordability, or decline. Your FCA-regulated broker can identify lenders that accept disclosed family loans.
Where should you go from here?
Family lending works when both sides can point to the same document and agree on the number. It fails when memory is the only record. Whether you are lending £2,000 for a car repair or £40,000 towards a first home, put the terms in writing before the money moves and keep the balance updated as repayments arrive.
Chipkie lets you create a written family loan agreement and track every repayment in one place — so the balance is never in dispute, and the relationship survives the loan.
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.
