Confirmation of the origin of funds: instructions and documents

When a foreign bank suddenly sends you a letter requesting confirmation of the source of funds, this is not about distrust, but about basic compliance hygiene. Global financial systems operate on the principle: “better to ask again than to miss something suspicious.” And here it is important not to panic, because such letters are a standard check that practically every account holder goes through, especially if they are a non-resident somewhere in Europe.

Why does this happen? The bank sees a transaction that looks slightly higher than your usual turnover, overly frequent transfers, incoming funds from jurisdictions under close scrutiny, or simply conducts regular monitoring in accordance with AML/KYC policies during account opening. For you, this is an unexpected hassle, but for the bank, it is ordinary daily routine.

The main thing is to respond calmly and competently. In this article, we will analyze when a bank requests the source of funds, how to properly respond to such a request, what documents may be required, and how to avoid typical mistakes so that the account remains active and the bank remains satisfied.

When does a bank request the source of funds?

In short — practically whenever it sees something that goes beyond your normal financial life or activity. Not because it wants to find hidden motives in your income, but because this is its direct legal responsibility. AML regulation in Europe is strict, penalties are painful, so banks act very cautiously.

A request may arise in several typical cases:

• Sharp increase in turnover. The account was operating quietly for months, and then a non-typical large incoming payment appears. For the bank, this is a signal to check the source of funds.
• Non-typical transactions. Frequent transfers, new counterparties, incoming funds from jurisdictions that regularly appear in FATF reports — all this is automatically flagged by banking systems as requiring attention.
• Change in financial behavior. You stated during account opening that your business is small and operates within a certain turnover range — and a couple of weeks later the turnover increased significantly. In this case, the bank will definitely ask what has changed.
• Routine monitoring. Sometimes, even without any “anomalies,” the bank updates the client’s file, collects documents, or undergoes an internal audit. This is a standard technical check.

And here there is an important nuance that is often forgotten: the bank requests the source of funds already at the account opening stage, especially when it concerns a personal account of an individual. That is, the bank wants to know not only where your first incoming transactions will come from, but also the general nature of the account holder’s income. This may include salaries, dividends, sale of assets, savings — everything that forms a personal financial profile. And if you plan to fund the account with significant amounts, the bank will immediately ask you to explain from which sources these funds were formed. Because for individuals, the risks of money laundering are higher from the regulators’ point of view. Therefore, the bank wants to make sure already “at the entry point” that funds of questionable origin have not entered its system.

The same applies to corporate accounts. All European banks and payment systems require confirmation of the source of funds of the company’s beneficiary already at the account opening stage. This means that even if funds will later be credited to the account from counterparties, the bank wants to understand where the money came from for the ultimate owner of the company and what their financial standing is. Such requirements apply not only to large companies, but also to startups or small businesses, especially if the account is opened by a non-resident.
So the bank’s request is simply their daily work: to collect a documentary trail proving that everything is transparent.

How to properly respond to a bank request?

When a bank requests confirmation of the source of funds, for the client such a request is an opportunity to confirm the transparency of their financial profile and minimize the risks of temporary account blocking or additional checks in the future.

To properly respond to such a request, it is necessary to prepare a cover letter and a package of documents confirming the source of funds.

The cover letter is a key element of the response to a bank’s request regarding the source of funds. It should briefly but clearly explain where the funds come from, how they are related to your activity or business model, and also indicate which documents are attached to confirm the source of income. The letter should be structured, without emotional coloring and unnecessary details that do not relate to the source of funds. Its purpose is to help the bank quickly understand the nature of the incoming funds and ensure transparency of your financial profile.

Documents confirming the source of income (wealth)

For individuals/company beneficiaries:

• Certificate from the place of employment indicating salary and a personal account statement;
• Tax declarations or confirmation of tax payment;
• Documents confirming receipt of inheritance;
• Documents confirming receipt of funds as a gift, as well as their availability in accounts;
• Documents confirming the sale of immovable or movable property / assets;
• Investment statements, dividends, interest on deposits;
• Bank certificate confirming the existence of a deposit and documents confirming the source of these funds;
• If the beneficiary is a founder of a company — company documents, company account statements, tax declarations, documents confirming dividend payments for the last year;
• If the beneficiary is a sole proprietor — extract from the register, tax declarations, bank account statements for the last year;
• Other documents reflecting sources of income.

For corporate accounts:

• Contracts with clients or suppliers from whom funds are received;
• Invoices and acts of completed works/services;
• Documents confirming the financial history of the company beneficiary (for example, declarations or statements from other accounts).

Important: most banks accept PDFs or high-quality scans. Photographs or cropped documents should not be sent — this may delay the review. Translations into English or notarization of documents may also be required depending on the requirements of a specific bank.

How to minimize bank requests in the future?

To reduce the number of such requests, it is important to work proactively and transparently. A few practical tips:

• Timely update information about yourself and your business with the bank. If transaction volumes, sources of income, or company structure change — inform the bank in advance.
• Maintain a regular and clear structure of financial flows. A large number of small or non-typical transactions may automatically trigger a compliance review.
• Use official and well-documented channels for fund transfers so that any incoming payments can be easily and quickly explained.
• If you are a corporate client, maintain clear records of contracts, invoices, and acts of completed works/services, and keep documents confirming dividend payments or beneficiaries’ income.
• Use separate accounts for different purposes. For example, have one bank account for core activities and another in a payment system for online transfers. Corporate accounts should not be used for personal purposes and vice versa — this simplifies control and reduces the risk of suspicious transactions.

These simple rules help the bank quickly understand the source of funds and reduce the likelihood of frequent clarifications.

Also remember the important thresholds for the most common bank checks:

• For cash deposits and one-off transactions, banks often apply simplified verification up to approximately €3,000, provided they correspond to the client’s profile and do not raise suspicion.
• In most EU countries and the United Kingdom, banking legislation prohibits accepting large amounts of cash without confirmation of the source (in practice, amounts exceeding €10,000). This means that for such amounts the bank must request documents confirming where the funds came from.
• While it may still be possible to find individual banks where amounts up to €50,000 can be deposited without checks, amounts of €50,000 and above will always be considered a significant transaction requiring documentary confirmation of sources, especially if this is the first incoming payment or it does not correspond to typical account activity.
• If the amount significantly exceeds regular incoming payments to the account or represents a large risky deposit (for example, large amounts of cash or funds from another jurisdiction), the bank may request confirmation regardless of whether it is €10,000, €20,000, or €50,000. There is no single “official threshold” established in EU regulations: it is determined by each bank individually based on the client’s risk assessment.

If you encounter difficulties with communication or unclear bank requirements, Azola Legal Services is ready to provide support. We will help properly prepare responses, collect the necessary package of documents, and ensure uninterrupted and calm operation of your account in any jurisdiction.

If you are interested in opening a new account abroad, also contact us — we will accompany the entire process from start to finish.