How to Prove Your Source of Funds
When purchasing a home in the UK, saving for a deposit is often the hardest hurdle. However, once the money is sitting in your bank account, you face a critical compliance step before exchange of contracts can take place: proving exactly how that money got there, even if it is a gift from your mum and dad.
Conveyancing solicitors and licensed conveyancers are bound by strict anti-money laundering laws. They cannot simply take your word that your funds are legitimate, nor is it good enough to say the money has been in your account for years. In this guide, we detail how far back your solicitor should go, the exact documentation you must provide, what happens if they cannot satisfy their anti-money laundering checks, and what to do if your solicitor can no longer act for you.
The Essential Difference Between Source of Funds and Source of Wealth
Many home buyers conflate these two concepts, leading to immediate compliance rejections. Your legal team is required by their regulators to investigate both areas under Enhanced Due Diligence (EDD) protocols:
- Source of Funds (SoF): This focuses entirely on the immediate origin of the money being used for the property transaction. It answers the question: Where is the money right now, and which account is it being transferred from?
- Source of Wealth (SoW): This looks at the broader economic picture. It investigates the activities that accumulated your total net worth over time. It answers the question: How did you realistically get the money to put into that bank account in the first place?
Why does your conveyancing solicitor interrogate your bank statements?
Legal professionals do not look through your personal statements out of curiosity. They have a legal responsibility under the law and a regulatory requirement.
The Money Laundering, Terrorist Financing and Transfer of Funds (Information on the Payer) Regulations 2017
The MLR 2017 is the primary statutory instrument that governs how property lawyers must operate.
- Regulation 28(11): Explicitly mandates that a relevant person (your solicitor or conveyancer) must conduct ongoing monitoring of a business relationship. This includes scrutinising transactions undertaken throughout the course of that relationship to ensure they are consistent with the professional's knowledge of the client, their business, and their risk profile, including, where necessary, the source of funds.
- Regulation 33: Dictates that Enhanced Due Diligence (EDD) must be applied in any situation that presents a higher risk of money laundering or terrorist financing. Property transactions involving gifted funds...automatically trigger this higher legislative standard.
The Proceeds of Crime Act 2002 (POCA)
POCA focuses on the criminal handling of dirty money. It applies directly to any professional operating within the UK regulated sector.
- Section 327–329 (Principal Offences): It is a criminal offence to conceal, disguise, convert, transfer, or acquire criminal property. If a solicitor permits illicit money to pass through their client account to buy a house, they can be prosecuted for actively facilitating money laundering.
- Section 330 (Failure to Disclose): This creates a separate criminal offence for failing to report suspected money laundering. If a professional has reasonable grounds to suspect that a transaction involves criminal property and fails to submit a Suspicious Activity Report (SAR) to the National Crime Agency (NCA), they have broken the law.
Criminal Prosecution & Prison Sentences
If a solicitor (legal professional) is found to have turned a blind eye to illegitimate funds, they can be prosecuted. Under POCA, a solicitor found guilty of a primary money laundering offence faces a maximum sentence of 14 years' imprisonment. A conviction for failing to disclose a suspicion of money laundering under Section 330 carries a maximum penalty of 5 years in prison and an unlimited fine.
Solicitors Regulation Authority (SRA)
The Solicitors Regulation Authority (SRA) and the Council for Licensed Conveyancers (CLC) actively police this sector. The SRA possesses the power to fine traditional firms up to £25,000 without referring them to an independent tribunal. For larger structural failures, the Solicitors Disciplinary Tribunal (SDT) regularly imposes individual and firm-wide fines totalling hundreds of thousands of pounds.
It could be decided that the solicitor loses their practising certificate, and if it is a firm-wide breach, regulators can step in, seize all client files, shut down the practice overnight, and freeze their bank accounts.
The SRA’s latest Anti-Money Laundering Annual Report confirms that the regulator has shifted away from issuing warning letters and is now levying severe financial penalties against non-compliant practices. Total AML enforcement penalties issued by the SRA and the Solicitors Disciplinary Tribunal (SDT) reached nearly £1.5 million (£1,498,983) over the latest reporting cycle.
How to prove source of funds?
During the conveyancing process, the onus is on the client to provide adequate proof of the source of their funds to their solicitor in order to purchase the property from the seller. Another way to look at the source is to look at how that money was generated. It didn't come out of thin air.
The different scenarios for proof of funds can be categorised into the following:
Source | Evidence |
Savings held in a bank | Savings are regular small payments from an income, such as a salary, pension or annuity. The best evidence for this will be 6 to 12 months' worth of bank statements showing you being paid by your employer/pension/annuity and the money slowly growing in your bank account. How far back do solicitors actually check bank statements?While 6 months of unbroken bank statements is the standard compliance baseline for your deposit account, your conveyancer has the legal right to look back much further to satisfy their Source of Wealth obligations. If you have a large sum that has been sitting untouched for two years, simply showing it was "already there" is not enough. You must provide the original historic audit trail, such as a past P60, a property sale completion statement, or investment liquidation slips, proving how that lump sum was originally generated. |
Gift from your family of friends | A gift is the source for the buyer, but for the person who gifted it, how did they generate that money? They'll still need to provide evidence from the list below, even if the money is sitting in your own bank account. Does a gifted deposit from a friend follow different rules than a gift from parents?Yes. While gifts from immediate blood relatives (parents, grandparents, siblings) are standard, gifts from unrelated friends or distant relatives are subject to heightened scrutiny. The solicitor must verify the donor's identity using biometric photo ID checks and trace the donor's specific Source of Funds in full. Many mortgage lenders refuse applications outright if the deposit gift originates from anyone outside your immediate family. |
Release of pension | A copy of your pension statement and a copy of your bank account statement. showing the money being received from the pension company. |
Sale of shares | A copy of the share release schedule and a copy of your bank account statement. showing the money being received from the company. |
Sale of another property | A copy of the completion statement from your solicitor and a copy of your bank account statement showing the money being received from the solicitor following completion. |
Inheritance | A copy of the letter from the executors, stating how much you are being paid as a beneficiary, and a copy of your bank account statement showing the money being received from the solicitor/executor's bank account. |
Dividends from a UK company | A copy of your dividend certificate, a copy of the company's accounts and a copy of your bank account statement showing the money being received from the company. |
Gambling winnings | A copy of your receipt proving your winnings and a copy of your bank account statement showing the money being received from the gambling company. You will struggle to prove the source of funds if the winnings were in cash. |
Compensation award | A copy of your letter confirming your compensation settlement from a solicitor and/or court, and a copy of your bank account statement showing the money being received from the third party/court/solicitor. |
Retirement from work or Redundancy | A letter from your employer, confirming that the monies are in relation to either early retirement or redundancy. |
ISA Premium | A Bond Certificate, if the monies are from an ISA or premium bond account. |
Crypto Currency | It is very difficult to evidence the original source of the cryptocurrency. |
Expert Tip: Solicitors use online solutions to check your bank account
At SAM Conveyancing, we use Armalytix to check transactions on your bank account. It is a digital checker used to verify the source of your funds. It will digitally check a bank account and highlight transactions requiring further evidence, such as gifts or inheritance. This vigilance ensures we do all we can to stop financial crime and safeguard our clients in line with the SRA's guidance.
Why are source-of-funds checks so stringent when buying a home?
The Solicitors Regulation Authority (SRA) states: "You (the solicitor) need to go back as far as is needed to build a clear picture of how the client accumulated their money for the transaction. For some, it may be as little as six months (particularly if that shows a major event, such as a significant gift), while for others it might require looking back several years. This is a case-by-case assessment and should reflect the level of risk you have identified in your client and/or matter risk assessment."
"A source of funds check is to answer the question, “how did the client accumulate the funds for this transaction?” This will need to go beyond where or who the funds have come from and look at why they have the money they do (eg is it salary, or a gift?)". Read more: SRA - Compliance with the regulations and preventing money laundering Q&A.
Andrew Boast FMAAT
CEO of SAM Conveyancing
Can I use cash savings held outside of a regulated bank?
No. Almost all SRA and CLC-regulated law firms maintain a strict policy of blanket refusal of physical cash deposits (banknotes) due to the near-impossibility of proving their origin. If you accumulate cash at home and attempt to pay it into a high street bank branch to transfer it to your solicitor, it will trigger an immediate AML investigation. The firm will reject the transfer and will likely terminate its business relationship with you.
If you have an unexplained lump sum of cash and pay it into your bank account to pay your solicitor, then you will still struggle to prove the source of those funds.
Use money from
Overseas to
Buy a House
By Andrew Boast, CEO of SAM Conveyancing
What are the rules if my property funds originate from overseas?
If your deposit or wealth comes from accounts outside the UK, it triggers Enhanced Due Diligence (EDD). Your solicitor must assess whether the money originates from a country on the UK Government's High-Risk Third Countries list. For funds from low-risk international jurisdictions (such as the EU, US, or Australia), you must provide certified bank statements from the originating institution, fully notarised English translations of all transaction histories, and explicit proof of the asset's track.
Which countries are classed as High Risk?
The list is published 3 times a year by the Financial Action Task Force (FATF) in February, June and October. The current list of high-risk countries is as follows:
Afghanistan, Algeria, Angola, Barbados, Belarus, Bolivia, Bosnia and Herzegovina, British Virgin Islands, Bulgaria, Cameroon, Central African Republic, China (if over £50k), Cote d’Ivoire (Ivory Coast), Cyprus, Democratic People's Republic of Korea, Democratic Republic of the Congo, Gibraltar, Guinea, Guinea-Bissau, Haiti, Iran, Iraq, Kenya, Kuwait, Lao People's Democratic Republic (LAOS), Lebanon, Libya, Moldova, Monaca, Myanmar, Namibia, Nepal, Nigeria, Panama, Papua New Guinea, Russia, South Sudan, Sudan, Syria, Trinidad and Tobago, UAE, Uganda, Vanuatu, Venezuela, Yemen, and Zimbabwe. Updated: 30th October 2025
For the majority of solicitors, you cannot use money that originates from any high-risk country to buy a property in England & Wales. If you are using money that originates from one of these countries, you should inform the solicitor before instructing them. They may take on the case, but will require stringent proof of funds evidence.
How do you prove the source of funds from overseas?
- Notarised Passport: If the account holder is a non-UK resident, they must take their passport to a local solicitor or notary in their country. The solicitor or notary photocopies and certifies the passport. If the account holder holds a UK passport and is a UK resident, they can send a scanned copy of their passport along with their National Insurance number, and we will complete an Online ID check for £90 per person.
- Proof of address: A copy from within the last 3 months is acceptable, and the name and address on the bank statement from which the funds are being sent must be shown. This document does not need to be translated.
- Proof of the source of funds: You need evidence of how the money was accrued (see the above list) and 3 months' bank statements. All non-English evidence must be translated into English, and bank statements and monetary figures must be converted into sterling (GBP). You can use the current exchange rate. It doesn't need to be accurate as of a future date, as you are only evidencing the amounts paid into and out of the bank account, and their sterling values. You cannot translate your documents. If required, further evidence may be requested to meet with the solicitor's Money Laundering Procedures.
Expert Tip: You're guilty until you prove you're innocent
When looking to prove the source of your funds, it may feel like you are guilty until proven innocent. Sadly, this is the case, and it is your responsibility to prove this money didn't come from the proceeds of crime. You may feel aggrieved that, after all of the years spent saving, this is unfair and question why you have to provide all this information.
The answer is that, given the widespread fraud in conveyancing, it is essential that solicitors become even more vigilant. To do so, they should provide you with clear guidance on what information they'll need in order to satisfy themselves about the source of your funds.
It is important to note that under the Proceeds of Crime Act 2002 (POCA), if the solicitor suspects that you have criminal property, they are required to make a report that they suspect you are engaging in money laundering. If they do not, they are themselves liable for prosecution for failure to report under the POCA.
Andrew Boast FMAAT
CEO of SAM Conveyancing
Summary: How to prove source of funds
- Gifted Deposit: Be prepared with a gifted deposit letter and provide the details of the donor to your solicitor.
- Don't withhold information: If your solicitor asks for evidence, you should provide clear and obvious evidence.
- More information, not less: It is be4st to provide more information, then less.
- Money held overseas: Check the high-risk country list and ask your solicitor up front if they can act for you.
Struggling to clearly map your Source of Funds?
Our expert conveyancing specialists utilise advanced Open Banking tools to verify your identity and source of funds seamlessly. Get in contact today for a Fixed Fee conveyancing quote for whatever you are planning. Get in contact with us today on 0333 344 3234 (local call charges apply) / help@samconveyancing.co.uk, or Ask a Question
Frequently Asked Questions About How to Prove Source of Funds
Andrew Boast FMAAT is a qualified accountant, conveyancing specialist and author with over 25 years of experience in the UK property sector. Since beginning his career in 2000 within established SRA and CLC-regulated conveyancing solicitor firms, Andrew has overseen the legal journeys of more than 75,000 clients.
He is the self-published author of the first-time buyer guide: How to Buy a House Without Killing Anyone, and a frequent contributor to mainstream UK media on legislative updates, property law, first-time buyer guides, conveyancing best practices, and stamp duty changes. Andrew specialises in resolving complex title issues, property conflict disputes, and property tax options, streamlining the enquiry process to reduce transaction times and maintaining a client-friendly focus.
Amanda Ambler is a highly accomplished conveyancing specialist with over 15 years of dedicated experience across residential property law, legal compliance, and practice management. Having held senior roles, including Head of Legal Practice and Head of Conveyancing at established UK law firms, Amanda possesses a profound, hands-on understanding of the technical intricacies of the property market.
As the designated Legal Content Reviewer for SAM Conveyancing, Amanda ensures that every guide, legal update, and resource published meets the absolute highest standards of accuracy, regulatory compliance, and factual integrity. Her rigorous review process guarantees that complex property legislation and industry processes are communicated clearly, transparently, and safely for home buyers and sellers alike.
